TPLO

TPLO Surgery Cost in Dundee

TPLO

X min read

Owners

Explore TPLO surgery cost in Dundee, including price ranges and factors like dog size and surgeon expertise affecting pricing.

Sustainable Vet Group

Updated on

September 25, 2026

This article is for informational purposes only and is not a substitute for professional veterinary advice. Every case is unique, so always consult your veterinarian for guidance specific to your pet.

This content is intended for veterinary professionals for educational purposes. It does not replace clinical judgment or tailored advice. Always rely on your training, expertise, and the specific context of your patients.

TPLO surgery is a common procedure to repair a torn cranial cruciate ligament (CCL) in dogs. This surgery stabilizes the knee joint, helping pets regain mobility and reduce pain. Understanding the cost of TPLO surgery is important for pet owners facing this decision.

Costs vary widely based on location, surgeon experience, diagnostic tests, dog size, implants, and rehabilitation needs. In Dundee, this article covers typical price ranges, what costs include, exclusions, key cost drivers, and helpful tips for owners.

Typical TPLO Surgery Cost in Dundee

TPLO surgery prices in Dundee vary depending on the clinic, surgeon skill level, and the size of your dog. Different facilities offer a range of pricing options to fit various budgets and needs.

Low estimate in Dundee — Some clinics offer TPLO surgery at a lower cost, often by using general veterinarians instead of board-certified surgeons or by limiting diagnostic tests. While this can reduce expenses, it may mean fewer advanced technologies or less personalized care.
Average cost range in Dundee — Most pet owners in Dundee pay between $3,000 and $5,000 for TPLO surgery. This range typically includes surgery by experienced vets, standard implants, and basic post-operative care, representing the market standard for quality and safety.
High-end TPLO specialists in Dundee — Premium clinics with board-certified surgeons and advanced surgical equipment may charge $5,000 to $7,000 or more. These facilities often provide comprehensive diagnostics, titanium implants, and extensive rehabilitation services.

What the Cost Usually Covers

TPLO surgery packages generally include several key components that contribute to the overall price. Understanding these helps owners know what to expect.

Surgery itself — This includes the surgical procedure to cut and rotate the tibia to stabilize the knee. It requires specialized skills and equipment, which contribute significantly to the cost.
Anaesthesia + monitoring — Safe anaesthesia and continuous monitoring during surgery are critical for your dog’s wellbeing. This involves trained staff and specialized equipment to manage risks.
Implants/plates — Stainless steel or titanium plates and screws are used to hold the bone in place. Titanium implants tend to be more expensive but offer advantages like reduced weight and better biocompatibility.
Post-op care and follow-up exams — After surgery, follow-up visits ensure proper healing. These visits include wound checks, suture removal, and sometimes X-rays to monitor bone healing.

What Might Not Be Included

Some costs are often overlooked by pet owners when budgeting for TPLO surgery. Being aware of these can prevent surprises.

Pre-surgical diagnostics — Blood tests, X-rays, or advanced imaging may be required before surgery to assess your dog’s health and plan the procedure. These are sometimes billed separately.
Post-surgical rehab therapy — Physical therapy or hydrotherapy can improve recovery but often comes as an additional expense. Rehab packages vary widely in price and availability.
Medications beyond standard pain control — Some dogs may need antibiotics or special medications after surgery, which can add to the total cost.
Additional cost if both legs need surgery — If your dog requires TPLO on both knees, expect roughly double the cost, though some clinics may offer discounts for simultaneous procedures.

Key Cost Drivers in Dundee

Even within Dundee, TPLO surgery prices can vary due to several factors. Understanding these helps owners make informed choices.

Dog size/weight — Larger dogs often require bigger implants and longer surgery times, increasing costs. Smaller dogs may have lower fees due to less complex procedures.
General vet vs board-certified surgeon — Board-certified surgeons have advanced training and may charge more, but often provide higher success rates and fewer complications.
City living costs + overhead in Dundee — Clinic rent, staff salaries, and equipment costs in Dundee influence prices. Higher overhead means higher fees for surgery.
Implant brand and surgical technology used — Premium implant brands and modern surgical tools can raise costs but may improve outcomes and recovery times.
Complication or infection risk — If complications arise, additional treatments or extended care increase the total expense significantly.

Tips for Pet Owners in Dundee

Planning ahead financially can ease the stress of TPLO surgery. Here are some tips to consider before proceeding.

Ask for a detailed itemised estimate — Request a breakdown of all expected costs to understand what you are paying for and avoid surprises.
Clarify if quote is for one leg or both — Some dogs need surgery on both knees, so confirm whether the price covers one or both legs.
Explore pet insurance or financing options — Check if your pet insurance covers TPLO surgery or if clinics offer payment plans to help manage costs.
Compare multiple clinics and ask about success rates — Don’t settle on the first quote. Comparing clinics helps find the best balance of cost and quality care.
Ask about rehab or physiotherapy packages — Post-surgery rehab is vital for recovery. Inquire if clinics offer bundled rehab services to save money.

Conclusion

TPLO surgery is a significant financial commitment for dog owners in Dundee. Costs vary widely depending on many factors, so planning ahead is essential to avoid unexpected expenses.

Comparing quotes from different clinics and confirming what is included in the price helps owners make informed decisions. Proper preparation ensures the best care for your dog and peace of mind for you.

Frequently Asked Questions

How much does TPLO surgery cost in Dundee?

TPLO surgery in Dundee typically costs between $3,000 and $5,000, depending on the clinic, surgeon expertise, and dog size. Premium services can exceed this range.

Is TPLO worth the cost for dogs with CCL tears?

TPLO is often worth the investment as it provides better joint stability and faster recovery compared to other treatments, improving your dog’s quality of life.

Can pet insurance cover TPLO surgery in Dundee?

Many pet insurance plans cover TPLO surgery, but coverage varies. Check your policy details or consult your insurer to understand benefits and limitations.

How do I know if a TPLO quote is reasonable?

A reasonable quote includes detailed costs for surgery, implants, anaesthesia, and follow-up care. Comparing multiple estimates and checking surgeon credentials helps ensure fairness.

Get a Free Poster

Enhance your workspace with a high-quality radiographs reference poster, designed for veterinary professionals. This free physical poster will be shipped directly to you—just fill out the form to request your copy.

Request

Table of contents

Heading 2

Heading 3

Things to know

Zlig vs TPLO: Which Surgery Is Better for Dogs?

Zlig (STIF-VETLIG) is an intra-articular synthetic implant used to reconstruct the cranial cruciate ligament inside the joint a conceptually different approach from TPLO, which changes joint mechanics rather than replacing the ligament.

Both are valid surgical options for CCL rupture in dogs, and the evidence base for Zlig, while smaller than for TPLO, is growing.

Quick answer: Zlig replaces the torn CCL inside the joint using a synthetic fiber implant through small bone tunnels. A 107-case prospective study reported good to excellent results in 97 cases. TPLO has a much larger evidence base and is the ACVS first-choice for large dogs.

Key takeaways

Zlig reconstructs the CCL inside the joint using a synthetic fiber implant through small bone tunnels; TPLO changes joint geometry instead
A 107-case prospective study reported good to excellent results in 97 cases: the largest Zlig dataset, single-centre, without controlled TPLO comparison
TPLO has a significantly larger evidence base: 25+ years of RCTs and ACVS first-choice status for dogs over 60 lbs
Zlig requires only small bone tunnels, no osteotomy: bone-cutting complications such as delayed union are not relevant
Implant failure is the primary Zlig-specific risk: the synthetic ligament may stretch or fail over time in large or very active dogs
Zlig suits bilateral CCL cases in small to medium dogs: both knees can sometimes be addressed in one procedure

How Zlig works

Zlig stands for Z-Ligament. The procedure uses a synthetic fiber implant (marketed as STIF-VETLIG GLOBAL) placed intra-articularly inside the joint capsule to replace the torn CCL.

Unlike extracapsular techniques (lateral suture, Tightrope) which place material outside the joint, Zlig anatomically reproduces the CCL's position within the joint.

The procedure involves drilling small bone tunnels through the femur and tibia at the anatomical insertion points of the CCL.

The synthetic implant is passed through these tunnels and secured, providing immediate mechanical stability similar to the original ligament.

Because there is no bone cutting or tibial rotation, Zlig is less invasive than TPLO and significantly faster to perform.

Recovery may be faster in the early post-operative period for the same reason.

The hund-kreuzbandriss.de clinical commentary (German veterinary reference site) notes: TPLO is a fairly invasive technique that causes irreversible changes.

Intra-articular reconstruction with synthetic fibers only requires small bone tunnels, and complications from osteotomy when they occur are not always easy to correct.

Who makes the Zlig implant?

The Zlig system uses the STIF-VETLIG GLOBAL implant, manufactured in France.

The procedure was developed primarily in France and Germany. It is gaining awareness in other countries but remains far less available than the major TPLO systems.

The highly porous intra-articular fiber design promotes fibroblast penetration and collagen fiber ingrowth over time, which the manufacturers propose increases implant longevity by improving resistance to flexion and torsional forces.

What the evidence shows

Primary Zlig outcome study

A prospective study by Le Doze, Paris, and Pages (2012 to 2021, 107 cases) found good to excellent results in 97 of 107 cases.

The study was conducted at two veterinary clinics in France. This is the most comprehensive Zlig-specific outcome dataset in the veterinary literature.

The hund-kreuzbandriss.de review confirms: Reconstruction of the CCL using the intra-articular synthetic implant STIF-VETLIG GLOBAL leads to good to excellent results in 97 cases in this prospective study from 2012 to 2021.

Limitations of current Zlig evidence

The primary study is single-centre, non-randomized, and lacks a direct comparison control group
Long-term data beyond the study's follow-up period is limited
The procedure has not been evaluated in large-scale randomized controlled trials comparable to those available for TPLO and TTA
The evidence base is substantially smaller than for TPLO (25+ years of multi-centre data)

TPLO evidence in context

TPLO has been evaluated in prospective randomized studies, force plate gait analysis trials, and multi-year cohort studies across dozens of institutions.

The ACVS recommends TPLO as the most commonly performed procedure for dogs over 60 lbs based on this evidence base.

Zlig vs TPLO: key differences

Feature	Zlig	TPLO
Mechanism	Intra-articular CCL reconstruction	Tibial geometry change
Invasiveness	Small bone tunnels; no osteotomy	Full proximal tibial osteotomy
Surgery time	Shorter	Longer
Primary risk	Implant stretch or failure	Bone healing complications
Best for	Small to medium dogs; bilateral cases	Large active dogs; steep TPA
Evidence base	Growing but limited	Extensive (25+ years)
Availability	Limited; specialist-only	Widely available at specialty centres
Osteotomy complications	Not applicable	Relevant (delayed union, TTF)

Patient selection

Zlig may be preferred when:

Small to medium breed dogs (primary candidate group in current evidence)
Bilateral CCL rupture in a small dog where simultaneous correction in one anaesthesia event is desired
Dog owner prefers to avoid the irreversible tibial changes of an osteotomy
The surgeon is specifically trained in the Zlig technique

TPLO is typically recommended when:

Dogs over 30 to 40 lbs, especially large and giant breeds
Dogs with steep tibial plateau angle (TPA) some are not suitable candidates for Zlig due to concurrent patellar luxation or excessive tibial ridge concavity
The ACVS first-choice recommendation is preferred, with the largest evidence base
General specialty practice context where Zlig expertise is not available

Hund-kreuzbandriss.de notes: dogs with a steep tibial plateau angle, concurrent patellar luxation, or excessive concavity of the tibial ridge are not good candidates for Zlig.

In these cases, TPLO represents an excellent and often the only alternative.

For the full surgical alternatives overview, see alternatives to TPLO surgery for dogs. For the TPLO vs Tightrope comparison, see Tightrope vs TPLO surgery for dogs.

Frequently asked questions

Is Zlig as effective as TPLO?

For small to medium dogs, the single-centre prospective study shows good to excellent results in the majority of cases.

A direct head-to-head randomized comparison with TPLO in matched patient populations has not been published, so direct effectiveness comparison is not currently possible.

TPLO has a much stronger and broader evidence base overall.

Can large dogs have Zlig surgery?

The current evidence base for Zlig is strongest in small to medium dogs. Large dogs generate higher joint forces that place more demand on the synthetic implant over time.

Many surgeons with Zlig experience reserve it for smaller patients, though there is no absolute size cutoff in the literature.

What happens if the Zlig implant fails?

The synthetic ligament can stretch or rupture over time. If this occurs, the stifle returns to instability and lameness.

Revision surgery would typically involve a different approach TPLO or TTA since the anatomy has not been altered by the Zlig procedure, making revision more straightforward than after an osteotomy.

How long does Zlig surgery take?

Shorter than TPLO in most cases, because no osteotomy is performed.

The exact duration varies by surgeon experience and patient anatomy, but the minimally invasive nature of the procedure is one of its practical advantages.

Where can I find a surgeon who performs Zlig?

Zlig is performed by veterinary surgeons specifically trained in the technique, primarily in France and Germany where the procedure was developed, and increasingly in other countries.

Board-certified veterinary orthopedic surgeons can advise whether the technique is available in your region.

Resources

Hund-Kreuzbandriss. Zlig Method: A Study. (Le Doze et al., 2012 to 2021 prospective study summary.) hund-kreuzbandriss.de
Hund-Kreuzbandriss. TPLO vs TTA vs ZLig vs Suture Retraction: 6 Methods. hund-kreuzbandriss.de
ACVS. Cranial Cruciate Ligament Disease. acvs.org
Vetamac. TPLO Surgery for Dogs: Success Rates and Alternative Options. vetamac.com

X min read

TPLO Range of Motion Exercises for Dogs

Range of motion (ROM) exercises are one of the earliest and most consistently prescribed rehabilitation interventions after TPLO surgery.

They prevent joint stiffness, reduce scar tissue adhesion, and maintain the joint mobility that ultimately determines how well the dog walks and bears weight long-term.

A key research finding from a study of 412 TPLO patients: loss of stifle extension greater than 10 degrees was associated with significantly greater long-term lameness.

Quick answer: TPLO ROM exercises involve gently flexing and extending the stifle for 10 repetitions, 2 to 3 times daily, beginning 2 to 5 days post-surgery. Extension is critical: loss of more than 10 degrees is strongly linked to long-term lameness.

Key takeaways

ROM exercises begin at 2 to 5 days post-TPLO: early initiation prevents scar tissue formation that progressively limits joint mobility
Extension is more critical than flexion: loss of more than 10 degrees is strongly associated with increased long-term lameness
Normal stifle ROM: extension 158 to 162 degrees, flexion 41 to 45 degrees; loss of more than 10 degrees warrants intervention
Hydrotherapy significantly improves stifle ROM: 122 vs 105 degrees at week 12 in a randomized controlled trial
Goniometry is the clinical tool: a goniometer measures joint angles and tracks ROM improvement at each rehabilitation assessment
10 repetitions, 2 to 3 times daily is the standard passive ROM protocol; stop if the dog vocalizes or tenses

What range of motion means after TPLO

Range of motion is the arc through which a joint can move from maximum flexion (the most bent position) to maximum extension (the most straight position).

In the stifle (knee), this is measured in degrees using a goniometer, a protractor-like device placed over the joint.

After TPLO surgery, the stifle is swollen, painful, and surrounded by muscles that have contracted to protect the injury.

Without regular movement, periarticular muscles tighten and scar tissue forms between tissue planes.

Clinical research confirms: dogs with normal stifle extension have greater weight-bearing on the operated limb at trot than those with restricted extension. ROM restoration is directly linked to functional outcome.

Normal stifle ROM values in dogs

Understanding what "normal" looks like helps set realistic goals for rehabilitation:

Extension: approximately 158 to 162 degrees (near full straightening of the joint)Flexion: approximately 41 to 45 degrees (the most bent position)

Loss of extension or flexion greater than 10 degrees from these reference values is clinically significant and associated with increased lameness (Veterian Key, 412-dog TPLO study).

Extension loss is worse than flexion loss: it is less tolerable, less amenable to rehabilitation, and more strongly correlated with osteoarthritis.

TPLO ROM exercise technique

Passive ROM (PROM) weeks 1 to 6

Passive ROM means you move the joint; the dog's muscles are relaxed.

Setup: dog lying on their side, operated leg facing up. Support the leg above and below the stifle with both hands.

Movement: gently flex the stifle (bring the lower leg toward the body), then extend it back toward neutral. Slow, smooth, continuous bicycle motion. Stay within the comfortable range do not push past resistance.

Repetitions: 10 per session, 2 to 3 sessions daily.

After: apply a cold pack for 5 to 10 minutes to reduce post-exercise inflammation.

This is identical to the PROM technique described in PROM exercises for dogs after TPLO surgery.

Active-assisted ROM weeks 4 to 8

As the dog begins bearing weight, active-assisted ROM incorporates the dog's own muscle activation:

Sit-to-stand: the dog moves from sit to stand repeatedly. Each sit flexes the stifle; each rise extends it. Begin with 5 to 10 repetitions, 2 to 3 times daily. This is one of the most effective active ROM exercises because the dog controls the movement within their own comfortable range.

Slow leash walks: controlled leash walking through a full gait cycle moves the stifle through its functional ROM repeatedly. Walking pace and surface affect how much ROM is required slow walks on level ground are most appropriate in early recovery.

Warm pack before exercise: from day 5 onward, apply a warm pack for 5 minutes before ROM sessions to relax the periarticular muscles and improve the range achieved.

Facilitated ROM weeks 6 to 12

As strength and confidence improve, exercises that challenge and expand ROM are introduced:

Cavaletti poles: stepping over poles at shoulder height (approximately 10 to 15 cm) requires active stifle flexion beyond normal walking ROM. Begin with 2 to 4 passes over 4 to 5 poles, increasing as strength improves.

Incline walking: walking up a gentle slope increases hindlimb extension demand; walking down increases flexion demand. Progress from 1 to 3 minutes per session at weeks 6 to 8 onward.

Passive stretching: gentle end-range holding of flexion and extension, 10 to 30 seconds per position, introduced at weeks 6 to 8 to address persistent stiffness. Do not force the joint; hold at comfortable resistance only.

The role of hydrotherapy in ROM recovery

A randomized controlled trial comparing hydrotherapy vs. land-based physiotherapy in post-TPLO dogs found that by week 12, hydrotherapy dogs achieved stifle ROM of 122 degrees compared to 105 degrees in land-only controls.

This is a clinically and statistically significant difference.

The underwater treadmill protocol involved twice-weekly sessions from week 3 onward, water at the level of the greater trochanter, 15 to 30 minute sessions.

Water buoyancy reduces joint load while the resistance and natural gait pattern in water challenge ROM more effectively than many land exercises at the same stage.

PMC (UWTM pilot study, 50 dogs): after 10 sessions, significant ROM improvement occurred in all joints including the stifle.

When to be concerned about ROM

Contact your veterinarian or rehabilitation therapist if:

The dog resists or vocalizes during ROM exercises that were previously comfortable
You notice a hard end-point to ROM (hard stop rather than soft resistance) suggesting joint capsule contracture
ROM appears to be decreasing rather than improving at the 4- or 8-week recheck
The dog is significantly lame and the stifle will not flex or extend near normal range

For the full PROM technique guide, see PROM exercises for dogs after TPLO surgery. For the complete rehab program that ROM fits into, see TPLO rehab exercises for dogs.

For the physical therapy guide, see when to start physical therapy after TPLO surgery. For the recovery exercises guide, see TPLO recovery exercises for dogs.

Frequently asked questions

How do I know if I'm achieving enough range of motion during home exercises?

Normal stifle flexion is approximately 41 to 45 degrees; normal extension is approximately 158 to 162 degrees.

If you are performing PROM correctly, you should feel gentle resistance at the end of each range not a hard stop, not complete looseness.

A rehabilitation practitioner can demonstrate the correct technique and measure your dog's current ROM with a goniometer at their first session.

My dog gets stiff after rest. Is this related to ROM?

Yes. Post-rest stiffness is one of the earliest signs of reduced ROM following TPLO. The joint has developed some adhesion and scar tissue that resolves partially with movement.

This is a signal to increase the frequency of ROM sessions and to ensure warm-up before walks.

If stiffness does not improve with ROM exercises over 1 to 2 weeks, contact your vet.

How long should ROM exercises continue after TPLO?

Passive ROM (PROM) is typically discontinued around weeks 6 to 8 when the dog achieves near-normal active ROM.

Active ROM exercises sit-to-stand, leash walks, cavaletti continue through weeks 8 to 16 and beyond until full function is restored. Ongoing ROM maintenance through normal activity continues for the dog's lifetime.

Can I use a goniometer at home to track progress?

Yes, but training is needed to use it accurately. Goniometers are inexpensive and available from physiotherapy suppliers. Your rehabilitation therapist can demonstrate the correct placement for the stifle joint.

Accurate home tracking provides useful objective data for your veterinarian alongside clinical assessments.

Does every TPLO dog need formal ROM therapy?

Home-based PROM performed 2 to 3 times daily produces good results for most dogs when performed correctly. Formal rehabilitation sessions add goniometric tracking, professional technique guidance, and modalities like hydrotherapy and laser.

Dogs that enter surgery with significant pre-surgical muscle atrophy or stiffness, or those not progressing at expected milestones, particularly benefit from formal rehabilitation.

Resources

Veterian Key. Range-of-Motion and Stretching Exercises. veteriankey.com
ScienceDirect. How Does CCL Rupture Treatment Affect Range of Motion in Dogs? sciencedirect.com
PMC. Pilot Study on the Effects of UWTM on Canine Joint Range of Motion. ncbi.nlm.nih.gov
TPLO Info. Rehab for Dogs After TPLO Surgery. tploinfo.com
WM Referrals. Post-Operative Rehabilitation After TPLO. wm-referrals.com

X min read

TPLO Failure Symptoms | Signs, Causes & When to See a Vet

Signs of TPLO Failure in Dogs & When to See a Vet

TPLO failure is not a single event -- it is a spectrum of complications that can occur at different stages of recovery. Some signs are emergencies requiring same-day veterinary contact.

Others are patterns that require evaluation at the next scheduled appointment.

Understanding which signs fall into which category -- and what each sign most likely indicates -- allows owners to respond appropriately rather than either ignoring a serious complication or panicking unnecessarily.

Quick answer: Key signs of TPLO failure: persistent or worsening lameness beyond the expected trajectory; sudden acute non-weight bearing; swelling, warmth, or discharge at the plate site; clicking or popping with pain; and radiographic changes at follow-up. Call your vet the same day for sudden acute lameness, spreading infection signs, or systemic illness.

Key takeaways

The key diagnostic principle is trajectory: normal TPLO recovery shows steady week-over-week improvement; any reversal -- worsening lameness, new swelling, returning pain -- signals a problem
Persistent lameness beyond expected recovery is the most common sign of TPLO failure: continued limping or inability to bear weight beyond the expected level weeks after surgery is the hallmark symptom
Sudden acute non-weight bearing after improvement is a same-day emergency call: causes include plate failure, tibial fracture, late meniscal tear, or acute infection; radiographs are required urgently
Swelling at the plate site weeks after surgery indicates deep implant infection: this is distinct from normal post-surgical swelling and represents a late-developing implant-associated SSI
Clicking or popping with pain or lameness indicates meniscal injury: isolated early clicking without lameness is usually benign; clicking with pain or worsening lameness indicates meniscal tear
Radiographic confirmation is required to diagnose most causes of TPLO failure: X-rays confirm the specific mechanism and guide management

The recovery trajectory principle

The single most useful concept for identifying TPLO failure is trajectory.

Recovery from TPLO is not linear -- there are good days and less good days -- but the overall trend over weeks should be consistently improving.

Normal trajectory: each week, the dog uses the leg a little more freely, lameness is slightly less obvious, weight bearing is more consistent.

Abnormal trajectory: lameness worsens after a period of improvement; the dog is using the leg less at week 4 than at week 2; the dog that was consistently toe-touching now holds the leg entirely off the ground.

Trajectory reversal is the key signal. Single-day fluctuations can occur with activity and weather. Week-over-week regression cannot be dismissed.

Signs of TPLO failure: by type

1. Persistent or progressive lameness

What it means: the dog is limping beyond the expected level for the stage of recovery. At 4 weeks, some lameness is expected. At 8 weeks, most dogs should be consistently bearing significant weight. At 12 weeks, most are nearly normal.

Differential: implant loosening, delayed bone healing, non-union, deep infection, late meniscal tear, progressive arthritis.

When to call: if lameness has not improved for 2 or more weeks at any stage, or has worsened compared to the previous week -- contact your vet for evaluation before the next scheduled appointment.

SustainableVet.org confirms: persistent lameness is the hallmark symptom of TPLO failure; continued limping or inability to bear weight weeks after surgery may indicate failure.

2. Sudden acute non-weight bearing

What it means: the dog was bearing weight adequately and suddenly stops using the leg entirely. This is a distinct clinical event, not a gradual worsening.

Differential: acute plate failure (plate bending or screw pullout), acute tibial tuberosity fracture, acute late meniscal tear, acute hematogenous implant infection.

When to call: same-day emergency veterinary contact. Radiographs are required urgently to determine the cause.

SustainableVet.org confirms: a failed TPLO often presents as persistent pain, joint instability, swelling, or difficulty bearing weight; dogs may show progressive lameness or reluctance to move.

3. Swelling at the plate site (not the incision)

What it means: a distinct swelling appearing over the medial tibial surface at the plate location, separate from and later than the normal post-surgical incision swelling. This is a late-developing sign, often appearing weeks to months after surgery.

Differential: deep implant-associated infection (SSI-D) with abscess formation; rarely, a non-infectious reaction to the implant material.

When to call: same-day if accompanied by warmth, redness, or discharge. Within 24 hours if soft and non-painful but new and increasing.

4. Wound discharge or draining tract

What it means: a draining tract opening near (but not necessarily at) the original incision, often appearing weeks or months after surgery in a wound that appeared fully healed. This is a classic sign of deep implant-associated infection with sinus tract formation.

When to call: same-day. Do not wait.

5. Clicking or popping with pain or lameness

What it means: a meniscal click -- the torn meniscal flap being displaced by the femoral condyle during movement. Distinguished from benign joint adjustment clicking by the presence of pain on stifle manipulation and lameness.

Differential: late meniscal tear (2 to 22% incidence after TPLO).

When to call: same-day if acute lameness accompanies the click. Within 24 to 48 hours for new clicking with mild lameness.

See the dedicated meniscal tear article for full detail on diagnosis and treatment.

6. Radiographic findings at follow-up imaging

What it means: the 6-week and 12-week radiographs may show: peri-implant radiolucent halos (implant loosening or infection), widened osteotomy gap without callus formation (delayed union or non-union), plate migration from original position, screw in joint space, or cortical erosion (osteomyelitis).

When to call: your vet interprets these radiographs and will advise on urgency. Do not wait for the next scheduled appointment if the vet identifies a significant radiographic abnormality.

7. Systemic signs of infection

What it means: fever (rectal temperature above 39.5 C / 103.1 F), lethargy, reduced appetite, or behavioral changes. These indicate the infection has systemic involvement.

When to call: same-day emergency contact. Systemic infection from an implant site is a serious condition.

What is not TPLO failure

Not every deviation from ideal recovery represents failure.

Normal: gradual lameness that is slowly improving week over week.

Normal: mild swelling at the incision that peaks at days 2 to 5 and resolves.

Normal: mild stiffness in the morning that improves with movement.

Normal: intermittent toe-touching or three-legged walking during high-activity periods in the first 4 weeks.

Normal: a dog that is more lame on a day after increased activity compared to a day of rest.

The distinguishing feature is trajectory and pattern. Gradual improvement with day-to-day variation is normal. Reversal of the improvement trend is not.

Revision TPLO: when failure requires re-operation

SustainableVet.org confirms: revision TPLO may involve removing or replacing implants, repositioning the tibial cut, or addressing infections; revision surgery is more complex and requires strict post-op care.

The specific revision approach depends on the cause:

Implant failure without infection: plate replacement or addition of a fixation device
Non-union: bone grafting, implant revision, and extended restriction
Deep infection with healed osteotomy: plate removal, surgical debridement, prolonged antibiotics
Osteomyelitis: plate removal, debridement, 4 to 6 months of culture-directed antibiotics

For the complication list, see 15 common complications after TPLO surgery. For the implant failure guide, see TPLO implant failure signs and causes.

For the infection guide, see TPLO plate infection signs and treatment. For the meniscal tear guide, see dog meniscus tear after TPLO surgery.

Frequently asked questions

My dog is limping at week 6 but the 6-week radiograph was normal. Is this TPLO failure?

Not necessarily.

Normal radiographs at 6 weeks with persistent lameness suggests the issue is soft-tissue rather than bone or implant related -- meniscal injury, muscle atrophy, scar tissue, or rehabilitation lagging behind bone healing.

Discuss with your vet: physiotherapy and pain management are typically the next step for this presentation.

What happens if TPLO failure is not recognized early?

Delayed recognition of implant infection leads to establishment of deeper infection and biofilm, requiring more complex treatment. Delayed recognition of non-union leads to fibrous union or permanent instability.

Delayed recognition of meniscal tear allows progressive joint damage. Early action is consistently associated with better outcomes across all causes of TPLO failure.

Is TPLO failure common?

Overall TPLO complication rates are 10 to 34%, but most complications are minor (superficial infection, seroma). Serious failure requiring revision surgery is uncommon.

The 2013 study confirmed 93% limb function restoration at 1 year -- meaning the vast majority of TPLO dogs recover successfully.

Can TPLO failure happen years after surgery?

Yes. Late implant-associated infection (hematogenous seeding from dental disease, UTI, or skin infection) can occur years after surgery. The hallmark is sudden lameness regression in a dog with previously normal function.

Any unexplained lameness in a TPLO dog warrants radiographic assessment.

Should I ask for radiographs at every sign of lameness?

Not necessarily for every minor fluctuation.

Radiographs are indicated for: sudden acute lameness, lameness that has not improved for 2 or more weeks, new swelling at the plate site, a draining tract, or any systemic sign of infection.

Your vet will advise on imaging timing based on clinical presentation.

Resources

SustainableVet. TPLO Failure Symptoms. sustainablevet.org
Clinician's Brief. Common Tibial Plateau-Leveling Osteotomy Complications. cliniciansbrief.com
SustainableVet. TPLO Failure Rate in Dogs. sustainablevet.org
ACVS. Cranial Cruciate Ligament Disease. acvs.org

X min read

When Can I Bathe My Dog After TPLO Surgery?

After your dog undergoes TPLO surgery, you may wonder when it is safe to bathe them. TPLO surgery is a common procedure to repair a torn cranial cruciate ligament in dogs. Proper post-operative care, including bathing, is essential to ensure a smooth recovery and avoid complications.

This article explains when you can bathe your dog after TPLO surgery, how to protect the surgical site, and what precautions to take during the healing process. You will learn practical tips to keep your dog clean without risking infection or delayed healing.

When Can I Bathe My Dog After TPLO Surgery?

The general recommendation is to avoid bathing your dog for at least 10 to 14 days after TPLO surgery. This time allows the incision to begin healing and reduces the risk of infection. Bathing too early can expose the wound to moisture and bacteria, which can cause complications.

Once the incision is fully closed and your veterinarian gives the go-ahead, you can bathe your dog carefully. It is important to keep the surgical site dry and clean during the initial healing phase.

Healing time frame: Most veterinarians advise waiting 10 to 14 days before bathing to allow the incision to close properly and reduce infection risk.
Veterinary approval: Always consult your vet before bathing to ensure the wound has healed enough for water exposure.
Incision protection: Keep the surgical site dry and avoid direct water contact until fully healed to prevent complications.
Signs of healing: Look for a dry, closed incision without redness or discharge before considering a bath.

Following these guidelines helps protect your dog’s surgical site and supports a healthy recovery.

How Should I Protect My Dog’s Incision When Bathing?

When your vet approves bathing, protecting the incision is crucial. You want to avoid water, soap, or shampoo reaching the surgical site. Using gentle methods can keep your dog clean without risking infection or irritation.

Proper protection also helps prevent your dog from licking or scratching the incision, which can delay healing.

Use waterproof covers: Apply a waterproof bandage or plastic wrap over the incision to keep it dry during baths.
Gentle cleaning: Use a damp cloth to clean areas away from the incision instead of full baths initially.
Mild shampoos: Choose vet-recommended, gentle shampoos to avoid skin irritation around the surgery site.
Dry thoroughly: After bathing, dry your dog carefully, especially near the incision, to prevent moisture buildup.

These steps help maintain cleanliness while protecting the surgical site during recovery.

What Are the Risks of Bathing Too Soon After TPLO Surgery?

Bathing your dog too soon after TPLO surgery can lead to several complications. The main concern is infection, which can delay healing or require additional treatment. Moisture can also weaken the incision and cause the sutures or staples to loosen.

Understanding these risks helps you avoid mistakes that could harm your dog’s recovery.

Infection risk: Water exposure can introduce bacteria into the incision, causing infection and inflammation.
Delayed healing: Moisture can soften the skin and slow the natural healing process of the wound.
Suture damage: Wet sutures or staples may loosen or fall out prematurely, risking wound reopening.
Increased discomfort: Bathing too early can cause pain or irritation at the surgery site, stressing your dog.

Waiting the recommended time and following vet advice reduces these risks significantly.

How Can I Keep My Dog Clean Without Bathing After Surgery?

Since full baths are not recommended immediately after TPLO surgery, there are alternative ways to keep your dog clean. These methods help maintain hygiene without exposing the incision to water.

Using gentle cleaning techniques and monitoring your dog’s activity can keep them comfortable and clean during recovery.

Spot cleaning: Use a damp cloth or pet wipes to clean dirty areas away from the incision gently.
Dry shampoo: Apply vet-approved dry shampoo powders or sprays to absorb oils and dirt without water.
Limit outdoor exposure: Avoid muddy or wet areas to keep your dog cleaner between cleanings.
Regular brushing: Brush your dog’s coat to remove dirt and loose hair, promoting cleanliness without bathing.

These alternatives help maintain hygiene while protecting the surgical site during healing.

What Signs Should I Watch for Around the Incision?

Monitoring your dog’s incision daily is important to catch any problems early. Knowing what signs indicate infection or delayed healing can help you seek veterinary care promptly.

Early detection of issues can prevent complications and support a faster recovery.

Redness and swelling: Persistent or worsening redness and swelling around the incision may signal infection.
Discharge or odor: Any pus, blood, or foul smell from the wound requires immediate veterinary attention.
Excessive licking: If your dog licks or chews the incision excessively, it can cause damage and delay healing.
Opening of the wound: If the incision starts to open or bleed, contact your vet right away.

Keeping a close eye on these signs ensures timely care and prevents serious complications.

How Can I Help My Dog Stay Comfortable During Recovery?

Comfort is key to a smooth recovery after TPLO surgery. Managing pain, limiting activity, and protecting the incision all contribute to your dog’s well-being.

Taking simple steps can reduce stress and support healing during this critical time.

Pain management: Follow your vet’s instructions on pain medications to keep your dog comfortable.
Restricted activity: Limit running, jumping, and rough play to prevent strain on the surgery site.
Use an Elizabethan collar: Prevent your dog from licking or biting the incision with a cone or collar.
Provide a clean resting area: Keep your dog’s bedding clean and dry to avoid contamination of the wound.

These measures help your dog heal faster and reduce the chance of complications.

Conclusion

Bathing your dog after TPLO surgery requires careful timing and protection of the surgical site. Waiting at least 10 to 14 days before bathing helps prevent infection and supports proper healing. Always follow your veterinarian’s advice and watch the incision closely for any signs of problems.

Using alternative cleaning methods and protecting the incision during baths ensures your dog stays clean and comfortable throughout recovery. With proper care, your dog can heal well and return to normal activities safely.

FAQs

Can I use a wet cloth to clean my dog before the incision heals?

Yes, you can use a damp cloth to gently clean areas away from the incision, but avoid touching or wetting the surgical site until fully healed.

When can my dog swim again after TPLO surgery?

Swimming should be avoided until the incision is fully healed and your vet approves, usually several weeks after surgery to prevent infection and injury.

What should I do if the incision gets wet accidentally?

If the incision gets wet, dry it gently with a clean towel and contact your vet for advice to prevent infection or complications.

Are there special shampoos recommended after TPLO surgery?

Use mild, vet-approved shampoos that are gentle on sensitive skin and avoid harsh chemicals that could irritate the incision area.

How often should I check my dog’s incision during recovery?

Check the incision at least once daily for redness, swelling, discharge, or other signs of infection to catch problems early and seek veterinary care if needed.

X min read

TPLO Bone Healing Time in Dogs Explained

Tibial Plateau Leveling Osteotomy (TPLO) is a common surgical procedure used to treat cranial cruciate ligament (CCL) injuries in dogs. Understanding the bone healing time after TPLO surgery is important for pet owners to manage their dog's recovery effectively. This article explains the typical healing timeline, factors influencing bone healing, and how to support your dog during this critical period.

TPLO bone healing time in dogs usually ranges from 8 to 12 weeks, depending on various factors such as the dog's age, size, and overall health. This guide will help you learn what to expect during recovery, signs of proper healing, and tips to ensure your dog regains full mobility safely.

What is the typical bone healing time after TPLO surgery in dogs?

Bone healing after TPLO surgery is a gradual process that involves the formation of new bone tissue at the osteotomy site. Most dogs show significant healing within 8 to 12 weeks post-surgery. However, the exact time can vary based on individual factors.

Healing duration range: Most dogs' bones heal sufficiently between 8 and 12 weeks after TPLO surgery, allowing gradual return to activity.
Initial bone stability: The surgical plate and screws provide immediate stability, helping bones start healing without shifting.
Radiographic confirmation: Veterinarians use X-rays around 8 weeks post-op to assess bone healing progress before increasing activity.
Complete remodeling: Full bone remodeling and strength restoration can take several months beyond initial healing.

Understanding this timeline helps owners plan post-operative care and follow veterinary advice to avoid complications.

What factors influence TPLO bone healing time in dogs?

Several factors affect how quickly a dog's bone heals after TPLO surgery. Recognizing these can help you provide better care and anticipate recovery challenges.

Dog's age: Younger dogs tend to heal faster due to better bone regeneration capacity compared to older dogs.
Body weight and size: Larger or overweight dogs may experience slower healing because of increased stress on the surgical site.
Overall health: Dogs with good nutrition and no underlying diseases generally heal more efficiently.
Post-surgery activity level: Excessive movement or jumping can delay healing by stressing the osteotomy site.

By managing these factors, you can support your dog's recovery and reduce the risk of delayed healing or complications.

How can you support your dog's bone healing after TPLO surgery?

Proper care after TPLO surgery is crucial to promote bone healing and prevent setbacks. Owners should follow veterinary instructions closely and create a safe environment for recovery.

Strict rest and confinement: Limit your dog's activity to prevent excessive strain on the healing bone during the first 8 weeks.
Controlled leash walks: Short, slow walks help maintain muscle tone without risking injury to the surgical site.
Balanced nutrition: Provide a diet rich in protein, calcium, and vitamins to support bone regeneration.
Regular veterinary check-ups: Follow-up visits allow monitoring of healing progress and early detection of complications.

These steps help ensure your dog recovers safely and regains full function after TPLO surgery.

What signs indicate proper bone healing after TPLO surgery?

Monitoring your dog for signs of proper healing can reassure you that recovery is on track. Some clinical and radiographic signs are important to watch for.

Decreased lameness: Gradual improvement in weight-bearing and reduced limping suggest healing progress.
Reduced swelling and pain: Less inflammation around the surgical site indicates tissue recovery.
Stable surgical site: No abnormal movement or instability when the leg is gently handled.
Positive X-ray findings: Evidence of new bone formation bridging the osteotomy gap confirms healing.

If you notice worsening lameness or swelling, contact your veterinarian promptly as these may indicate complications.

What complications can affect TPLO bone healing time?

Some complications can delay or impair bone healing after TPLO surgery. Being aware helps you seek timely veterinary care if needed.

Infection risk: Surgical site infections can slow healing and require antibiotics or further treatment.
Implant failure: Loosening or breaking of plates and screws can destabilize the bone and delay healing.
Delayed union or nonunion: Sometimes bones heal slowly or fail to unite, needing additional intervention.
Excessive activity: Early or vigorous exercise can disrupt healing and cause complications.

Prompt veterinary attention for any concerns can prevent prolonged recovery and improve outcomes.

How long should activity be restricted after TPLO surgery?

Activity restriction is essential to protect the healing bone and surgical site. Most veterinarians recommend strict rest with limited movement for the first 8 weeks.

First 2 weeks: Complete confinement with minimal movement, avoiding stairs and jumping.
Weeks 3 to 8: Controlled leash walks only, gradually increasing duration based on healing progress.
After 8 weeks: Veterinary assessment guides gradual return to normal activity if healing is adequate.
Full recovery timeline: Most dogs resume normal activity by 12 to 16 weeks post-surgery after full bone remodeling.

Following these guidelines helps prevent re-injury and supports successful healing after TPLO surgery.

Conclusion

TPLO bone healing time in dogs typically ranges from 8 to 12 weeks, with full recovery taking several months. Understanding this timeline and the factors that influence healing helps owners provide the best care during their dog's recovery.

Strict activity restriction, proper nutrition, and regular veterinary follow-ups are key to ensuring your dog heals well after TPLO surgery. Watching for signs of proper healing and potential complications allows prompt action to support your pet's health and mobility.

FAQs

How long does it take for a dog's bone to heal after TPLO surgery?

Most dogs' bones heal sufficiently between 8 and 12 weeks after TPLO surgery, but full remodeling may take several months.

Can older dogs heal as well as younger dogs after TPLO?

Older dogs may heal more slowly due to reduced bone regeneration, but with proper care, they can still recover well after TPLO surgery.

When can my dog start walking normally after TPLO?

Controlled leash walks usually begin after 2 weeks, with gradual increase after 8 weeks based on veterinary assessment of healing.

What signs mean my dog is not healing properly after TPLO?

Signs like increased swelling, worsening lameness, or instability at the surgical site suggest complications and need veterinary evaluation.

Is physical therapy helpful during TPLO recovery?

Physical therapy can aid muscle strength and joint mobility but should only start after bone healing is confirmed by your veterinarian.

X min read

What Does TPLO Stand For in Veterinary Medicine?

If your dog has been diagnosed with a torn cranial cruciate ligament, you have likely encountered the acronym TPLO possibly before you knew what it meant or why it was being recommended.

TPLO is the most commonly performed CCL surgery in the US. Understanding what the acronym means helps demystify why the surgery works the way it does.

Quick answer: TPLO stands for Tibial Plateau Leveling Osteotomy: Tibial (shin bone), Plateau (upper surface forming the knee), Leveling (making the plateau closer to horizontal), Osteotomy (controlled bone cut). The surgery stabilizes the knee by rotating the tibia, making the CCL biomechanically unnecessary.

Key takeaways

T = Tibial: the tibia, the shin bone below the knee (stifle) joint
P = Plateau: the upper tibial surface forming the knee joint; in dogs it has a significant slope called the tibial plateau angle
L = Leveling: reducing the tibial plateau angle to closer to parallel with the ground, changing joint biomechanics
O = Osteotomy: a controlled surgical bone cut that allows the tibial segment to be repositioned and fixed
TPLO does not repair the torn CCL: it changes joint geometry so the ligament becomes biomechanically unnecessary
TPLO was first described in the early 1980s by Dr. Barclay Slocum and is now the most reliable procedure for CCL disease in dogs

Breaking down each word

T Tibial

The tibia is the main weight-bearing bone of the lower leg, running from the knee (stifle) joint to the ankle (tarsus).

In dogs, the tibia is not perfectly vertical it angles slightly forward relative to the femur above it. This angle contributes to the mechanical forces that act on the stifle during weight-bearing.

Veterinary Partner (VIN) explains: tibial refers to the shin bone.

P Plateau

The tibial plateau is the upper, relatively flat surface of the tibia that contacts the bottom of the femur to form the stifle joint.

Unlike in humans, where the tibial plateau is nearly horizontal, in dogs it has a significant slope the tibial plateau angle (TPA).

A steeper TPA creates more cranial tibial thrust during weight-bearing, which is the force that normally the CCL resists.

Veterinary Partner (VIN) defines it as: the upper surface of the shin bone; the bottom of the knee joint.

L Leveling

Leveling refers to the goal of the surgery: reducing the tibial plateau angle to approximately 5 degrees, making it closer to parallel with the ground.

When the tibial plateau is leveled, the femur no longer tends to slide forward relative to the tibia during weight-bearing the cranial tibial thrust is neutralized.

This is why a functioning CCL is no longer required after TPLO.

Veterinary Partner (VIN) defines it as: making the plateau more parallel to the ground.

O Osteotomy

An osteotomy is a controlled surgical cut through a bone a deliberate, planned fracture performed under anesthesia to allow repositioning of a bone segment.

TPLO involves a curved osteotomy through the proximal tibia, creating a segment that is rotated to the new angle and fixed with a bone plate and screws during healing.

Veterinary Partner (VIN) defines it as: a bone-cutting procedure like a controlled fracture of the bone.

Why TPLO was developed

Before TPLO, the dominant approach to CCL repair was extracapsular stabilization placing sutures outside the joint to mimic the CCL's function.

While effective in small dogs, this approach was unreliable in large, active dogs because the suture material eventually stretched or failed, and the joint depended on periarticular scar tissue for long-term stability.

Veterinary Specialty Center explains: TPLO changes the biomechanics of the knee so the joint can remain stable without relying on the damaged CCL.

Instead of replacing the torn ligament, it changes the mechanics of the knee entirely.

DVM360 confirms: TPLO alters the mechanical forces acting on the stifle, rendering the cranial cruciate ligament unnecessary.

Dr. Barclay Slocum first described TPLO in the early 1980s.

Veterinary Partner (VIN) notes that much research has been done since to refine the technique, and it has emerged as the most reliable technique for CCL disease management in dogs.

How TPLO differs from human ACL surgery

This is one of the most common points of confusion for owners.

In humans, ACL surgery typically involves replacing the torn ligament with a graft (taken from the patient's hamstring, patellar tendon, or a donor).

The new ligament is reconstructed to restore normal joint function.

TPLO does not reconstruct the CCL. It bypasses the need for a functioning CCL entirely by changing joint geometry.

Veterinary Specialty Center confirms: in people, ACL surgery replaces the torn ligament; in dogs, TPLO changes knee mechanics so the joint functions without the CCL.

This is why dogs cannot "re-tear" their CCL after TPLO there is no ligament replacement to fail. The stability provided by TPLO is structural and permanent.

What TPLO treats and who it is for

TPLO is used to treat cranial cruciate ligament (CCL) rupture the canine equivalent of the human ACL.

CCL rupture is the most common cause of hind limb lameness in dogs and costs US dog owners over $1 billion annually.

The ACVS recommends TPLO as the most commonly performed procedure for dogs over 60 lbs. It is also recommended for smaller dogs where long-term mechanical stability and minimal arthritis progression are priorities.

For the surgical causes guide, see what causes TPLO surgery to be needed in dogs. For the full surgical overview, see what is TPLO surgery in dogs?.

For the pros and cons of the procedure, see TPLO surgery pros and cons for dogs.

Frequently asked questions

Does TPLO stand for the same thing in all dogs?

Yes. The acronym and the procedure are the same regardless of breed, size, or the specific implant system used (Arthrex or Synthes).

The variation between cases is in the amount of tibial rotation required (based on the individual TPA), the plate size selected, and the post-operative protocol.

Is TPLO the same as TTA?

No. TTA (Tibial Tuberosity Advancement) is a different procedure with a similar goal both change knee biomechanics rather than replacing the CCL.

TTA advances the tibial tuberosity cranially rather than rotating the tibial plateau. They achieve knee stabilization through different geometric approaches.

Why is it called leveling if the bone is rotated?

The rotation of the tibial bone segment achieves the leveling.

When the proximal tibial segment is rotated, the angle of the tibial plateau changes it becomes less sloped, i.e., more level relative to the ground.

The procedure is named for the result (leveling) rather than the method (rotation).

Was TPLO invented for dogs?

Yes. TPLO was developed specifically for veterinary use in dogs in the early 1980s by Dr. Barclay Slocum.

It was developed because the canine stifle's anatomy and biomechanics differ significantly from the human knee particularly the steep tibial plateau angle that is uniquely problematic in dogs.

Why is TPLO preferred over other CCL surgeries for large dogs?

Large, active dogs generate higher joint forces than small dogs.

Extracapsular repair (lateral suture) provides stability through scar tissue formation adequate for small dogs but inadequate for the forces generated by large, active breeds.

TPLO provides bone-based mechanical stability that is not dependent on scar tissue, making it more durable and reliable for larger patients.

Resources

Veterinary Partner (VIN). TPLO Surgery. veterinarypartner.vin.com
VCA Animal Hospitals. Tibial Plateau Leveling Osteotomy (TPLO). vcahospitals.com
DVM360. Understanding Tibial Plateau Leveling Osteotomies in Dogs. dvm360.com
Veterinary Specialty Center. TPLO Surgery for Dogs. vetspecialty.com
ACVS. Cranial Cruciate Ligament Disease. acvs.org

X min read

TPLO Plate Size Chart Explained

Before performing TPLO surgery, the veterinary surgeon selects the appropriate bone plate from a range of sizes specific to the implant system being used.

The plate size chart is the reference tool that guides this selection.

Choosing the correct plate is as important as the surgical technique itself an undersized plate risks mechanical failure, and an oversized plate may not fit the tibial anatomy correctly.

Quick answer: The TPLO plate size chart matches body weight and tibial bone dimensions to the appropriate implant. Arthrex plates range from 2.0 mm to 4.5 mm; Synthes covers a similar range. Tibial width is measured on preoperative radiographs and used alongside body weight to select the plate and screw configuration.

Key takeaways

The plate size chart is a preoperative planning tool that matches body weight and bone dimensions to the appropriate implant
Arthrex offers TPLO plates from 2.0 mm to 4.5 mm: the small sizes are purpose-designed for small breed anatomy, not scaled-down large plates
Tibial width is measured on preoperative radiographs: a primary determinant of plate selection alongside body weight
Plate selection is system-specific: Arthrex plates require Arthrex instruments and screws; Synthes requires Synthes-specific tools
The plate is single-use sterile: a new plate must be available if a different size is needed intraoperatively
Correct plate selection directly affects outcomes: undersized plates risk fatigue fracture; oversized plates cause soft tissue irritation

What the plate size chart does

The TPLO plate size chart is a lookup reference similar in function to the rotation chart and weight chart that are part of the Arthrex and Synthes TPLO planning systems.

It takes known inputs (primarily body weight and tibial dimensions measured on radiographs) and outputs the recommended plate size from the manufacturer's product range.

SustainableVet.org explains: a TPLO plate size chart is a reference guide used by veterinary surgeons to select the appropriate implant size for stabilizing the tibia after TPLO surgery.

Plates come in various lengths and hole numbers to fit different dog breeds and bone sizes.

The chart removes the guesswork from a decision that significantly affects the mechanical performance of the repair.

A plate that is correctly sized distributes load evenly across all screw holes and lies flush against the cortical bone surface, minimizing stress risers and soft tissue irritation.

Key variables in plate size selection

Body weight

Body weight is the primary initial filter. Heavier dogs generate higher joint forces and require larger, stiffer plates to withstand the loads applied during weight-bearing and normal activity.

General size categories used across Arthrex and Synthes product lines:

Small breed (under 10 to 15 kg): 2.0 mm or 2.4 mm plates
Medium breed (15 to 30 kg): 3.5 mm plates
Large breed (30 to 50 kg): 3.5 mm or 4.5 mm plates
Giant breed (over 50 kg): 4.5 mm plates; locking systems particularly important

These ranges are approximate and surgeon-dependent. The specific manufacturer chart values take precedence over general categories.

Tibial width and bone dimensions

The plate must span the osteotomy site with at least 2 screws proximal and 2 screws distal to the cut for adequate fixation.

The tibial width at the planned osteotomy level measured in millimeters on a mediolateral radiograph determines which plate length and screw configuration provides sufficient purchase without overhanging the bone margins.

Number of screw holes

Plates are available with different numbers of holes (typically 4, 5, or 6 holes for standard sizes).

More holes provide more screw fixation points, which is important in larger dogs or those expected to be highly active during recovery.

SustainableVet.org notes: plates come in various lengths and hole numbers to fit different dog breeds and bone sizes, allowing surgeons to select the configuration that best matches each individual patient's anatomy.

Arthrex TPLO plate system

Arthrex produces the most widely used TPLO locking plate system in the United States. The Arthrex TPLO Locking Plate System is designed with specific anatomical features to facilitate consistent plate placement.

From Arthrex Vet Systems documentation: the 2.0 mm and 2.4 mm TPLO locking plates are not simply shrunken versions of larger TPLO plates.

The smaller plates were purpose-designed for small breed bone anatomy.

Small dogs have proportionally different tibial geometry, and scaling down a large plate does not optimize screw angle or load distribution.

Arthrex's 4.5 mm plate incorporates a caudal tilt designed for improved screw purchase in the proximal tibial segment, with a proximal screw trajectory directed to avoid the osteotomy line.

This is an important design feature: screws that inadvertently cross the osteotomy reduce fixation quality and risk creating a stress concentration at the cut.

The Arthrex system includes an InternalBrace ligament augmentation option for dogs with severe stifle instability. This knotless lateral stabilization technique is not part of standard TPLO.

For the Arthrex plate overview, see Arthrex TPLO plate overview and use. For the Synthes plate overview, see Synthes TPLO plate overview and use.

How the plate size chart integrates with other planning tools

The plate size chart is used in concert with two other charts in the preoperative planning sequence:

Rotation chart: determines how many degrees the tibial segment must be rotated to achieve the target postoperative TPA of approximately 5 degrees. This is completed using the preoperative TPA measurement from radiographs.

Weight chart: guides post-operative weight-bearing expectations during rehabilitation.

All three charts together form the complete preoperative planning and post-operative monitoring framework. For the rotation chart, see Arthrex TPLO rotation chart explained.

For the weight chart, see Arthrex TPLO weight chart explained.

Why correct plate size matters

Mechanical adequacy: the plate must be strong enough to withstand the bending forces applied across the osteotomy during recovery typically equivalent to body weight or more during brief dynamic loading events (jumping down from a bed despite restrictions). An undersized plate risks fatigue fracture if the osteotomy takes longer to heal than expected.

Biological fit: the plate must lie flush against the bone surface. A plate that sits proud causes soft tissue irritation and can lead to the implant-associated pain and lameness that eventually requires plate removal.

Screw purchase quality: screws that are too short for the bone depth, or too long and penetrating the far cortex inappropriately, compromise fixation quality. Plate size selection is linked to the specific screw lengths that are compatible with each plate variant.

Frequently asked questions

Can the surgeon change the plate size during surgery?

Yes. If the preoperatively planned plate size does not fit correctly once the osteotomy is made and the bone is positioned, the surgeon may open a different plate size.

This is why surgical teams keep a range of plate sizes available in the sterile field or immediately accessible.

The plate is a single-use sterile item it cannot be resterilized if opened and unused.

Are Arthrex and Synthes plates interchangeable?

No. Each manufacturer's plates require that manufacturer's specific screws, instruments, and jigs.

Using Synthes screws in an Arthrex plate (or vice versa) risks stripped screw heads, incorrect screw purchase geometry, and compromised fixation. The systems are entirely separate.

How does the surgeon know which plate to order before surgery?

The surgeon measures the tibial width and records body weight at the preoperative planning appointment.

Based on these measurements and the manufacturer's size chart, a specific plate and screw set is ordered or identified from the implant inventory before surgery.

Is a larger plate always better for a big dog?

Not necessarily.

The plate must fit the tibial anatomy. A plate longer than the available cortical surface overhangs the bone, creating soft tissue irritation and stress concentration at the plate ends.

The goal is the smallest plate that provides adequate mechanical fixation for the dog's body weight and expected activity level.

What happens if the wrong plate size is used?

An undersized plate risks fatigue fracture under repetitive loading. An oversized plate may not conform to the bone surface, reducing screw fixation quality and potentially causing soft tissue irritation.

Plate failure or malposition requiring revision is a recognized complication of poor implant selection.

Resources

Arthrex Vet Systems. TPLO Locking Plate System. arthrexvetsystems.com
Arthrex Vet Systems. 4.5 mm TPLO Plates and Screws. arthrexvetsystems.com
PMC. Influence of Fixation Systems on Complications After TPLO in Dogs Greater Than 45 kg. ncbi.nlm.nih.gov
VCA Animal Hospitals. Tibial Plateau Leveling Osteotomy (TPLO) in Dogs. vcahospitals.com

X min read

How Long Does TPLO Surgery Take?

"Failure rate" is used loosely when owners discuss TPLO, which can cause significant confusion. A complication is not the same as a failure.

Understanding what the published data actually shows and distinguishing minor complications from true surgical failures gives owners a much clearer picture of what to expect.

Quick answer: The overall TPLO complication rate is 10 to 34% across studies; most are minor. Major complications requiring reoperation occur in 2 to 7%. Infection is the most common major complication. Long-term good outcomes are reported in 90 to 93% of dogs.

Key takeaways

Overall complication rate is 10 to 34% across published studies; most complications are minor and resolve without additional surgery
Major complication rate requiring reoperation is 2 to 7%: a 1,000-dog study found 14.8% overall with 6.6% major complications
SSI is the most common major complication: 2.9% to 25.9% across studies; giant breeds over 50 kg are at highest risk
Small dogs under 15 kg have significantly lower complication rates: 4.44% in one 90-dog study, with no revisions
Good to excellent long-term outcomes in 90 to 93% of dogs: the complication rate does not equal the failure rate
Surgeon experience is the most modifiable risk factor: complication rates are consistently lower at high-volume specialty centers with board-certified surgeons

Defining "failure" vs. "complication"

This distinction is critical for interpreting the literature and for setting owner expectations accurately.

Complication: any deviation from the expected post-operative course. This includes minor findings like superficial wound dehiscence, mild swelling, or radiographic evidence of delayed osteotomy healing with no clinical signs. Many publications include these minor events in their complication rates.

Major complication: an event requiring additional surgical intervention or causing extended lameness. Major complications represent the subset of complications that meaningfully affect recovery and outcome.

Failure: the most restrictive definition surgery that did not achieve its goal of stifle stabilization, resulting in persistent instability and requiring revision with a different technique. True failure in this sense is uncommon after TPLO.

What published complication data shows

Overall complication rates

Vetamac confirms: complication rates following TPLO surgery range from 14% to 34%, with less than 10% of cases requiring a second surgery.

PMC (intraoperative bacterial culture study) confirms: the complication rate of TPLO varies between 10% and 34%, with 2 to 4% requiring surgical revision.

Today's Veterinary Practice reports a 14.8% complication rate in 1,000 TPLO patients (6.6% major — requiring repeat surgery or extended lameness), including 2.8% late meniscal injury and 6.6% infections.

Infection rates

Infection is the most common major complication and the one with the greatest variation by dog size and surgical setting.

PMC confirms: SSI rate after TPLO is reported to be 2.9% to 25.9% across studies, which is higher than other clean orthopedic surgeries (2.0 to 6.7%).

Surgical site infection rates of 21.3% to 25.9% have been reported specifically for giant-breed dogs weighing over 50 kg.

The implant removal rate due to infection is 3 to 7.4% per published literature (PMC PRP study; ResearchGate implant removal study).

Complication rates by dog size

Dog size is a consistent predictor of complication risk.

PLOS One retrospective (90 dogs under 15 kg): overall complication rate 4.44%, with no complications requiring surgical revision.

The study confirms: the complication rate in dogs under 15 kg is less than that historically reported in heavier dogs.

PubMed retrospective (small and medium dogs, 2.0 and 2.7 mm plates): overall complication rate 36%.

The most common complications were radiographic evidence of delayed healing (9%), patellar tendon thickening (8%), and tibial tuberosity fracture (6%). Only 7% of complications were major.

PLOS One confirms: the TPLO complication rates range from 10% to 34% and vary in severity from swelling and bruising to fractures and osteomyelitis.

Implant-related complications reportedly occur in under 10% of all TPLO procedures.

Long-term success rates

Complication rates must be interpreted alongside long-term success rates.

The retrospective cohort study comparing TPLO, Tightrope, and TTA found: function greater than 1 year after surgery was 93.1% for TPLO, 92.7% for Tightrope, and 89.2% for TTA.

SustainableVet.org confirms: good to excellent long-term outcomes are achieved in 90.4% of patients up to 6.8 years after TPLO surgery; 80 to 90% of owners are satisfied with their dog's long-term recovery.

A dog can have a complication even a significant one like an infection and still achieve a good long-term outcome after the complication is resolved.

The complication rate and the long-term success rate address different aspects of the outcome.

Factors that affect complication and failure rates

Surgeon experience and volume

This is the most consistently cited modifiable risk factor. High-volume specialty centers and board-certified surgeons consistently report lower complication rates than general practitioners performing occasional TPLO procedures.

Surgical efficiency, technique precision, and post-operative protocol standardization all contribute.

Dog size and body weight

Larger dogs generate higher joint forces, have larger dead space at the surgical site, and place more mechanical demand on the implant during healing.

These factors contribute to the higher complication rates seen in large and giant breeds.

Excessive tibial plateau angle (TPA)

Dogs with TPA above 35 degrees (excessive TPA, or eTPA) have higher complication rates.

Today's Veterinary Practice notes: owner-perceived outcome was superior for eTPA group dogs when TPLO resulted in TPA of 14 degrees or less compared to those with TPA greater than 14 degrees.

Postoperative complications were more common in dogs with eTPA.

Post-operative activity restriction compliance

Dogs that are over-active during recovery have higher rates of implant complications, seroma formation, and wound complications.

Strict adherence to the prescribed restriction protocol is the owner's primary contribution to reducing complication risk.

For the complications overview, see 15 common complications after TPLO surgery in dogs. For the infection signs guide, see TPLO plate infection signs and treatment.

For the long-term outcomes guide, see long-term outcomes of TPLO surgery. For the plate removal guide, see TPLO plate removal recovery guide.

Frequently asked questions

What is the TPLO failure rate?

Depends on how "failure" is defined. If failure means any complication: 10 to 34% across studies. If failure means major complications requiring surgery or causing extended lameness: 2 to 7%.

If failure means persistent instability requiring revision with a different technique: uncommon and not consistently reported across large series.

Is TPLO safe for large breed dogs?

Yes, but with a higher complication risk than small dogs. Vetamac confirms: for large breeds, TPLO is still the gold standard, providing better long-term stability than alternatives.

The higher complication rate in large dogs reflects the greater mechanical demands and surgical challenges, not a fundamental unsafety of the procedure.

What percentage of TPLO dogs need a second surgery?

Across published studies, 2 to 10% require a second surgical intervention. Most second surgeries address infection (requiring plate removal), late meniscal tears (requiring partial meniscectomy), or implant complications.

Does my dog's vet experience affect failure rate?

Yes, substantially. Surgeons performing fewer than a set number of TPLO procedures per year have higher complication rates than high-volume specialists.

This is one reason referral to a board-certified orthopedic surgeon (ACVS diplomate) is recommended for TPLO.

If my dog has a complication, does that mean the TPLO failed?

Not necessarily. Many dogs who develop complications including infections requiring plate removal still achieve good to excellent long-term function after the complication is resolved.

The complication rate and the long-term outcome are different measures.

Resources

Today's Veterinary Practice. Canine Cranial Cruciate Disease: Evidence-Based Look at Current Treatment Modalities. todaysveterinarypractice.com
PLOS One. Risk Factors for Short-Term Postoperative Complications in Dogs Weighing Less Than 15 kg. journals.plos.org
PubMed. Short-Term Complications Associated With TPLO in Dogs Using 2.0 and 2.7 mm Plates. pubmed.ncbi.nlm.nih.gov
PMC. Clinical Relevance of Positive Intraoperative Bacterial Culture in TPLO in Dogs. ncbi.nlm.nih.gov
Vetamac. TPLO Surgery for Dogs: Success Rates and Alternative Options. vetamac.com

X min read

How Soon Can a Dog Walk After TPLO Surgery?

TPLO (Tibial Plateau Leveling Osteotomy) surgery is one of the most common and successful procedures performed to stabilize the knee after a cranial cruciate ligament (CCL) tear in dogs.

While many pet parents expect their dog to immediately stop limping after surgery, recovery is a gradual healing process. It requires structure, careful activity restriction, and close adherence to surgical recommendations to achieve the best long-term outcome.

At SustainableVet, we emphasize that recovery is just as important as the surgery itself. The goal after TPLO surgery is not simply to get your dog walking quickly. It is to allow the bone and soft tissues to heal properly while safely rebuilding strength, comfort, and confidence in the limb.

When Can a Dog Start Walking After TPLO Surgery?

One of the most common questions after surgery is how soon dogs can walk again. The short answer: dogs are encouraged to begin controlled limb use early in recovery, but activity must remain extremely restricted while the bone heals.

We want your dog to use the operated leg, but not overuse it.

Most dogs will begin toe-touching on the operated leg within the first several days after surgery. Limping is expected during the early recovery period. What we want to see is gradual improvement over time:

More consistent weight bearing
Improvement in muscle mass
Improved comfort during controlled, regimented leash walks

While early limb use is encouraging, it is crucial to understand that the bone itself is still healing internally. That process typically takes 8 to 12 weeks.

TPLO Recovery Timeline at a Glance

Indoor Recovery: 8 to 12 Weeks

During the entire recovery, exercise restriction is critical. Crate confinement or restriction to a small area with good traction is strongly recommended. Most dogs will slip and slide on hardwood floors and can easily injure themselves inside the house when not confined.

Days 1 to 10: Initial Rest Period

During the first 7 to 10 days after surgery, walking is restricted to short, slow leash walks only for bathroom breaks. These walks should be calm, controlled, and limited to what is necessary.

Days 10 to 14: First Recheck Appointment

By the first recheck appointment, many dogs are partially weight-bearing during a controlled, slow walk.

At this stage, your veterinary team will evaluate the incision, swelling, comfort level, and early limb use. Even if your dog is doing well, activity should still remain very restricted.

Weeks 2 to 8: Gradual Activity Increase

As healing progresses, 10 to 15 minute leash walks may be introduced to build more strength, reduce stiffness, and encourage bony healing without overloading the leg.

Walking activity and physical therapy are gradually increased according to your surgeon's recommendations. This stage is not about testing how much your dog can do. It is about safely rebuilding muscle mass while protecting the healing bone.

Weeks 8 to 12: Final Healing and Recheck

At the final recheck appointment, radiographs (X-rays) are typically performed to assess bone healing.

By this stage, many dogs have minimal or no lameness during controlled activity. If the osteotomy has healed adequately, your surgeon may recommend a gradual transition back toward more normal activity.

Why Strict Rest Is Required After TPLO: The Mechanics

During a TPLO procedure, a precise geometric cut is made in the tibia. The bone is then rotated into a new position and stabilized using a specialized metal plate and screws.

Until the bone heals, the plate and screws are responsible for maintaining the new bone position and protecting the osteotomy during normal controlled movement.

Excessive activity, slipping, jumping, or twisting too early can place forces on the repair that it is not yet ready to tolerate.

Even if your dog appears comfortable and eager to do more, unrestricted activity too early can create significant complications before the bone has fully healed.

Recovery after TPLO surgery is truly a situation where slow and steady wins the race.

Factors That Affect TPLO Walking Recovery Time

Recovery time depends on several individual factors. These influence how quickly walking progresses and how carefully activity must be advanced.

‍

Factor	Impact on Recovery
Postoperative care quality	Strict management and pain control support faster, safer healing
Presence of complications	Infection, implant issues, or delayed healing can extend the timeline
Individual healing rate	Age, weight, and overall health affect bone healing speed

‍

Postoperative Care

Strict environmental management, appropriate pain control, and structured rehabilitation directly support a safer recovery. This includes using a leash at all times outdoors, preventing stairs and jumping, keeping floors non-slip, and following medication and activity instructions closely.

Presence of Complications

Issues such as incision problems, infection, implant failure, delayed bone healing, or fracture can extend the recovery timeline and delay walking progression.

Any sudden worsening in lameness, swelling, pain, or reluctance to use the limb should be reported to your veterinary team immediately.

How to Safely Support Your Dog's Mobility During Recovery

A structured support plan improves long-term outcomes and reduces the risk of setbacks.

Use a Short Leash and Harness at All Times

All walks during recovery must remain on a short leash with a slow, controlled pace. A harness can help control movement and prevent sudden lunging or twisting.

Your dog should not be allowed to run ahead, play, greet other dogs energetically, or move unpredictably during recovery walks.

Stick to Strict Exercise Limits

Follow your veterinarian's recommended walking times and avoid any off-leash activity, running, jumping, or rough play.

Many complications occur not because a dog was walking, but because the dog suddenly slipped, jumped, twisted, or did too much too soon.

Prioritize Pain Management

Administer all prescribed pain medications on schedule. Good pain control keeps your dog comfortable and encourages more even, controlled weight-bearing during brief walks.

Do not stop medications early unless your veterinarian advises you to do so.

Incorporate Professional Physical Therapy

Gentle range-of-motion exercises may help reduce stiffness early in recovery. As healing permits, rehabilitation options such as controlled strengthening exercises, hydrotherapy, or underwater treadmill sessions may help rebuild muscle while reducing stress on the limb.

Working with a certified canine rehabilitation specialist allows for a customized plan that helps restore joint flexibility, rebuild muscle, improve comfort, and support a safe return to normal mobility.

Risks of Walking Too Soon or Too Much After TPLO Surgery

Being cautious protects the surgical repair. Allowing your dog to run, jump, slip, or play too early carries real clinical risks.

Implant Strain or Failure

Excessive weight-bearing, sudden twisting, or impact forces too early can place abnormal stress on the plate and screws. In severe cases, implants can loosen or fail, requiring additional treatment or corrective surgery.

Delayed Bone Healing

Too much motion or repeated stress at the surgical site can slow the bone's ability to heal properly, prolonging the total recovery period.

Increased Pain and Inflammation

Overexertion can cause swelling, soreness, and joint inflammation. This may make your dog less willing to use the leg and can delay functional recovery.

Setbacks in Recovery

Too much activity too soon can cause limping, soft tissue irritation, swelling around the surgical site, or a slower return to comfortable walking. In some cases, setbacks require a longer rehabilitation plan or additional veterinary care.

Frequently Asked Questions

How long should my dog be confined after TPLO surgery?

Your dog needs indoor confinement for the entire two to three months of recovery. Confinement prevents accidental running, jumping, and rough movement.

Can I let my dog run or jump after TPLO surgery?

No. Running, jumping, stair use, and off-leash activity are restricted for approximately 8 to 12 weeks. The exact timeline depends on your dog's healing and X-ray findings.

What signs show my dog is recovering well and ready for longer walks?

Positive signs include reduced swelling, steady comfort levels, consistent toe-touching, and gradual improvement in walking quality. Always confirm with your veterinary team before increasing walk duration.

Is physical therapy necessary after TPLO surgery?

Some dogs recover well with structured home care alone, but physical therapy is always an excellent adjunct to build muscle strength and improve use of the operated leg.

When can my dog return to full, normal activity?

Most dogs achieve adequate bone and soft tissue healing between 8 and 12 weeks after surgery. Full activity should only resume gradually after follow-up X-rays confirm the osteotomy has healed and your surgeon provides formal approval.

Final Thoughts

Dogs are often ready to do more before their bone is ready to tolerate more. Dogs will not moderate their own activity. That is why TPLO recovery requires a balance between early controlled limb use and strict protection of the surgical repair.

With appropriate rest, controlled leash activity, pain management, follow-up care, and rehabilitation when needed, most dogs return to comfortable, active lives after TPLO surgery.

About this Collaboration: Successful healing happens both inside and outside the operating room. This article combines structured veterinary rehabilitation guidelines with direct clinical insights from veterinary orthopedic surgeons to support pet parents through every stage of the recovery journey.

X min read

How Long Does Swelling Last After TPLO Surgery

Post-surgical swelling after TPLO is normal, expected, and self-limiting when managed correctly. Most incision-area swelling peaks within the first 2 to 5 days and resolves by 2 weeks.

Swelling that does not follow this trajectory -- that is not declining, or that appears new after initial improvement -- is the key indicator that requires veterinary attention.

Quick answer: Normal TPLO swelling peaks at days 2 to 5 and resolves within 1 to 2 weeks with cold therapy and rest. Ankle swelling from gravity-dependent fluid migration appears at days 3 to 5. Swelling increasing after day 5, or with warmth, redness, or discharge, warrants veterinary evaluation.

Key takeaways

Normal TPLO swelling peaks at days 2 to 5: SustainableVet.org confirms mild incision swelling usually goes away within two weeks
Ankle swelling is a normal gravity-dependent phenomenon: TPLO Info confirms ankle swelling typically appears at days 3 to 5; it is fluid migrating downward from the surgical site
Cold therapy in the first 48 to 72 hours is the primary management tool: 10 to 15 minutes, 3 to 4 times daily, reduces swelling and pain
Swelling worsening after day 5 or accompanied by warmth, redness, or discharge indicates infection, seroma, or hematoma; contact your vet within 24 hours
Mild swelling can persist for weeks at a low level in larger dogs and those with poor activity restriction compliance; trajectory matters more than absolute level
Nighttime swelling is common and normal: dogs move less at rest, allowing fluid to settle; this should improve by morning or after repositioning

Normal swelling: timeline and characteristics

Days 1 to 3: acute post-surgical swelling

Swelling begins within hours of surgery and results from:

Surgical tissue trauma (incision through skin, subcutaneous tissue, and fascia)
Bone cutting at the osteotomy site
Inflammatory response to the metal plate and screws
Fluid accumulating in the disrupted tissue spaces

This early swelling is diffuse, soft, and warm to the touch. It is the expected cellular response to surgery.

Days 2 to 5: peak swelling

Swelling typically peaks between days 2 and 5. The dog's leg may look noticeably larger at this stage, and some extension of swelling down the lower leg toward the ankle is normal.

Vetplayas confirms: swelling typically peaks within the first few days after surgery but should gradually subside over time.

Days 3 to 5: ankle swelling appears

A distinct swelling often appears at the ankle (tarsus) between days 3 and 5, sometimes alarming owners who notice it away from the surgical site. This is entirely normal.

TPLO Info confirms: it is completely normal for swelling to develop around the ankle approximately 3 to 5 days following surgery on the TPLO leg.

This swelling can be massaged and iced if it occurs and will resolve over a few days.

TPLO Austin confirms this finding identically. The mechanism is gravity-dependent migration of tissue fluid from the surgical site through the fascial planes of the lower leg.

Days 5 to 14: progressive resolution

From day 5 onward, swelling should consistently decrease with each daily inspection. Cold therapy, rest, and anti-inflammatory medication all contribute to this resolution.

SustainableVet.org confirms: mild swelling around the incision site usually goes away within two weeks. The trajectory must be consistently improving.

Beyond 2 weeks: residual low-level swelling

Some dogs retain mild soft swelling around the lower leg beyond 2 weeks, particularly larger dogs with greater tissue volume and dogs who have been less compliant with activity restriction.

This is usually minor and does not indicate a problem if:

The swelling is soft and not warm
There is no discharge or redness
The dog is bearing weight and improving in lameness

Cold therapy: the primary management tool

Cold therapy is the evidence-based first-line intervention for post-surgical swelling.

Protocol:

Wrap an ice pack or bag of frozen peas in a thin cloth or towel
Apply to the incision and plate site for 10 to 15 minutes
Repeat 3 to 4 times daily
Begin on day 1 post-surgery
Continue for the first 48 to 72 hours (the acute inflammatory phase)

SustainableVet.org confirms: cold therapy, like applying an ice pack wrapped in a towel for 10 to 15 minutes several times a day during the first 72 hours, helps reduce inflammation.

After the initial period, warm compresses can be used to promote circulation.

Never apply ice directly to the skin or incision -- frostbite and wound damage can result. Remove the pack immediately if the skin appears pale or very cold.

For the ankle specifically, TPLO Info confirms: ankle swelling can be massaged and iced. Gentle proximal-to-distal massage (toward the toes) applied after icing helps lymphatic drainage.

Concerning swelling: signs requiring veterinary contact

Swelling that is not declining after day 5

Normal swelling is consistently declining from day 5 onward. Swelling that is the same or larger than on day 3, measured at day 7, is not normal.

New swelling after apparent resolution

If swelling had reduced and then reappears -- particularly at the plate site rather than the incision -- this suggests a developing seroma, hematoma, or early infection.

SustainableVet.org confirms: you should be concerned if swelling increases after the first week or is accompanied by heat, redness, oozing, or a bad odor.

Warmth, firmness, redness, or discharge alongside swelling

These features distinguish infection from normal surgical edema. Normal edema is diffuse, soft, not dramatically warm, and has no discharge. Infection produces focal warmth, firmness, redness spreading beyond the incision, and discharge.

Swelling at the plate site (not the incision) weeks after surgery

This can indicate an implant-associated infection with seroma or early osteomyelitis. Requires radiographic assessment and deep sampling.

Seroma: a specific type of post-surgical swelling

A seroma is a localized collection of clear serous fluid under the skin, forming when tissue spaces fill with tissue fluid that has not been reabsorbed.

Seromas after TPLO are common and are distinct from infection.

Signs of seroma:

A soft, fluctuant (fluid-filled) swelling at or near the incision
Typically appears 1 to 3 weeks post-surgery
Fluid is clear or pale yellow when aspirated
No warmth, redness, or discharge from the incision itself

Most seromas resolve without treatment. Your vet will assess whether aspiration or monitoring is appropriate.

For the fluid buildup guide, see fluid buildup after TPLO surgery in dogs. For the ankle swelling guide, see ankle swelling after TPLO surgery in dogs.

For the infection signs guide, see TPLO plate infection signs and treatment. For the bruising guide, see bruising after TPLO surgery in dogs.

Frequently asked questions

Is it normal for the whole leg to swell after TPLO?

Yes, in the early days. Diffuse swelling of the lower leg, extending from the surgical site toward the ankle, is normal in the first 1 to 2 weeks.

Gravity and the inflammatory response both contribute. This resolves as the inflammatory process settles and the dog begins controlled weight bearing.

My dog's leg looks huge at day 3. Is that too much?

Day 3 is within the normal peak swelling period.

Unless the swelling is dramatically asymmetric compared to the other leg, is very hot, or is producing discharge, observe and continue cold therapy as directed.

If you are concerned, contact your vet to describe the swelling -- they can advise whether in-person assessment is needed.

Should I massage the swollen leg?

Gentle lymphatic massage (soft strokes toward the body, from the ankle upward) after icing can help reduce distal swelling.

Do not massage directly over the incision or plate site, and do not massage aggressively. Ask your vet or rehabilitation therapist to demonstrate the correct technique.

My dog's swelling is going up and down -- bigger in the evening, smaller in the morning. Is that normal?

Yes. SustainableVet.org confirms that mild nighttime swelling occurs because dogs move less while resting, allowing fluid to settle. Morning improvement after repositioning and movement is normal.

The concern is when the morning maximum is larger than the previous day's morning maximum -- a consistently worsening trend.

When does warm therapy replace cold therapy?

Cold therapy is most beneficial in the first 48 to 72 hours (the acute inflammatory phase). After 72 hours, warm compresses promote circulation and may help reabsorb residual fluid.

The transition is typically around days 3 to 5. Never apply warmth to an incision that looks infected or discharging -- this can worsen infection.

Resources

TPLO Info. TPLO Recovery FAQ. tploinfo.com
SustainableVet. Post-Surgery Recovery After TPLO in Dogs. sustainablevet.org
TPLO Austin. TPLO Incision Care After Surgery. tploaustin.com
VCA Animal Hospitals. Tibial Plateau Leveling Osteotomy (TPLO) in Dogs. vcahospitals.com

X min read

We'd love you to
Join Us!

Thank you! Your submission has been received!

Oops! Something went wrong while submitting the form.

Taking Great TPLO Radiographs

Click Below to Watch Live Video Demos

We'll send you a Free Wall Poster with all the steps

Now that you are a pro at TPLO rads

Let's take your infection control to the next level

Watch these videos!

Step #1

Getting Ready

Ensuring a clean surgical field starts with proper skin preparation. This video demonstrates the best practices for:

Shaving the patient – Achieving a close, even shave while minimizing skin irritation
The Dirty Scrub – The initial skin prep step to remove surface debris and reduce bacterial load before the sterile scrub.

Following these techniques helps reduce infection risk and improve surgical outcomes. Watch the video to see how it’s done effectively!

Step #2

Reduce Your Risks

Many surgeons are shocked to find out that their patients are not protected from biofilms and resistant bacteria when they use saline and post-op antibiotics.

That’s Where Simini Comes In.

‍Why leave these risks and unmanaged? Just apply Simini Protect Lavage for one minute. Biofilms and resistant bacteria can be removed, and you can reduce two significant sources of infection.

Protect Your Patients

Step #3

Take the Course

Preventing surgical infections is critical for patient safety and successful outcomes. This course covers:

Aseptic techniques – Best practices to maintain a sterile field.
Skin prep & draping – Proper methods to minimize contamination.
Antibiotic stewardship – When and how to use perioperative antibiotics effectively.

Stay up to date with the latest evidence-based protocols. Click the link to start learning and earn CE credits!

Things to know

TPLO

5 min read

PROM Exercises for Dogs After TPLO Surgery

Learn safe and effective PROM exercises for dogs after TPLO surgery to aid recovery and improve joint mobility.

PROM passive range of motion is one of the first rehabilitation exercises prescribed after TPLO surgery in dogs.

It prevents joint stiffness, reduces scar tissue formation, and keeps the stifle flexible during the weeks when your dog cannot yet bear full weight on the operated leg.

Done correctly, it is safe, gentle, and straightforward. Done incorrectly, it risks disrupting the healing osteotomy.

Quick answer: Start PROM 2 to 5 days post-TPLO. Dog on their side, operated leg up — flex and extend the stifle gently for 10 reps, 3 times daily. Never force the joint. Ice for 5 to 10 minutes after each session.

Key takeaways

PROM begins 2 to 5 days after TPLO: starting too early stresses the healing osteotomy; follow your surgeon's timeline
Correct position: dog on their side, operated leg up; support the leg above and below the stifle with both hands
10 repetitions, 3 times daily: the standard protocol recommended by Veterinary Specialty Center and Midwest Veterinary Specialists
Never force the joint: move only within the pain-free range; stop if your dog vocalizes, flinches, or tenses
Follow PROM with a cold pack: 5 to 10 minutes of icing after each session reduces post-exercise swelling
Discontinue PROM around weeks 6 to 8 when your dog approaches near-full range of motion

What is PROM and why does it matter after TPLO?

Passive range of motion means you move your dog's leg through its natural range of motion your dog's muscles are completely relaxed.

This is different from active exercises where the dog uses their own muscles.

After TPLO surgery, the stifle joint is swollen, painful, and protected by surrounding muscles that naturally tighten to guard the injury.

Without gentle movement, this guarding leads to stiffness, scar tissue adhesion, and reduced joint flexibility that can persist long after the bone has healed.

Midwest Veterinary Specialists explains that for the first two weeks after TPLO, the main rehabilitation goals are to decrease pain and maintain range of motion in the stifle joint.

PROM is one of the primary tools for achieving this in the early phase.

PROM also improves local circulation to the healing tissues, reduces swelling, and maintains the nerve pathways that control normal limb movement all of which support faster recovery.

When to start PROM after TPLO

Most surgeons prescribe PROM beginning 2 to 5 days after surgery. TPLO Info recommends starting passive range of motion exercises and icing as early-phase rehabilitation cornerstones in the first two weeks.

Veterinary Specialty Center's post-TPLO protocol specifies PROM starting in the early post-operative period with 10 slow repetitions 3 times daily, followed by an ice pack.

Do not begin earlier than your surgeon advises. The osteotomy site needs initial stability before mechanical stress is introduced. Your surgeon's discharge instructions take priority over general guidelines.

How to perform PROM: step-by-step

Setup

Position your dog lying on a comfortable, non-slip surface a yoga mat or folded blanket works well. The operated leg should be facing up.

If your dog is uncomfortable lying on their side, some surgeons allow PROM with the dog standing, though lying down is generally more controlled.

Hand position

Place one hand above the stifle (on the thigh) and your other hand below the stifle (around the lower leg/hock area).

This two-hand support prevents any rotation or twisting of the joint during movement.

Edmonton West Animal Hospital advises supporting the leg with one hand to prevent twisting, using the other to gently bend and straighten the leg.

The movement

Flex the stifle by gently bringing the lower leg toward the body (bending the knee), then extend it back to a neutral position.

The motion should be smooth, slow, and continuous a gentle bicycle-pedaling motion as described by Veterinary Specialty Center.

Move only to the point where you feel natural resistance. The goal is to maintain and gradually improve range not to force progress.

Each cycle (one flex and one extension) counts as one repetition.

Repetitions and frequency

10 repetitions per session
3 sessions per day
Space sessions throughout the day: morning, afternoon, and evening

TPLO Info confirms PROM can be performed three times daily for 10 to 15 repetitions each.

After each session

Apply a cold pack (frozen peas wrapped in a thin towel work well) over the stifle for 5 to 10 minutes after PROM.

Veterinary Specialty Center specifies icing after PROM for 5 to 10 minutes, 3 times daily for at least the first 3 days.

Cold therapy reduces the local inflammation that gentle exercise naturally produces, keeping the joint comfortable between sessions.

Warm packs before PROM (weeks 2 onward)

After the first 5 days, Midwest Veterinary Specialists recommends applying warm packs before PROM sessions to relax the tissues and increase blood flow.

Warming before exercise improves the flexibility of the surrounding muscles and makes the movement more comfortable for your dog.

Apply a warm (not hot) damp towel or heat pack for 5 minutes before beginning. Do not apply heat in the first 5 days when active inflammation is at its peak.

What NOT to do during PROM

Do not push past the point of resistance forcing the joint can damage healing tissue
Do not perform PROM if your dog is acutely distressed or in significant pain
Do not skip the cold pack afterward this step reduces unnecessary post-exercise swelling
Do not perform PROM with the dog standing in the first 2 weeks unless specifically instructed
Do not increase repetitions or speed without veterinary guidance

When to stop PROM

PROM is discontinued when your dog achieves near-full range of motion typically around weeks 6 to 8. At this point, your dog transitions to active weight-bearing exercises that build muscle strength.

Veterinary Specialty Center's protocol specifies discontinuing PROM sometime during the 3- to 6-week phase when achieving almost full range of motion, transitioning to slow leash walks and sit-to-stand exercises.

For the full range of motion exercise progression that follows PROM, see TPLO range of motion exercises for dogs.

For the broader rehabilitation program that PROM fits into, see TPLO rehab exercises for dogs. For the physical therapy timeline, see when to start physical therapy after TPLO surgery.

Frequently asked questions

How do I know if I'm doing PROM correctly?

Your dog should remain relaxed throughout. A correctly performed PROM session produces no tensing, flinching, or vocalization.

If your dog stiffens or reacts, you have either gone too far in range or are moving too quickly. Slow down and reduce the range.

Ask your vet or rehabilitation therapist to demonstrate the technique at the first post-op recheck.

My dog won't stay still for PROM. What should I do?

This is common, especially in the first few days when the dog is in pain and confused. Keep sessions short, use a calm voice, and try high-value treats to hold attention.

Some dogs respond better to PROM immediately after a short leash walk when they are slightly tired.

If your dog is too distressed to cooperate, contact your surgeon adequate pain management is essential for PROM compliance.

Can PROM hurt my dog's TPLO repair?

When performed correctly within the pain-free range of motion, PROM does not stress the osteotomy.

The forces generated during gentle passive flexion and extension are far below what would disrupt the fixation plate.

The key safeguard is never forcing the joint stay within comfortable range and stop if resistance is met.

Should I do PROM on the other (unaffected) legs too?

Yes. Post-TPLO Info notes that PROM can also be performed on the other three limbs, as they compensate for the injured leg and are under increased load during recovery.

Gentle range of motion work on all limbs supports overall flexibility and comfort.

What happens if I miss PROM sessions?

Occasional missed sessions are not catastrophic, but consistency matters. Regular PROM prevents the progressive stiffening and scar tissue formation that makes rehabilitation harder as weeks pass.

Aim to complete all three daily sessions, and communicate with your surgeon if you are struggling to keep up with the protocol.

Resources

Veterinary Specialty Center. TPLO Aftercare for Pets. vetspecialty.com
Midwest Veterinary Specialists. Post-Operative Care and Rehabilitation Following TPLO. midwestveterinaryspecialists.com
TPLO Info. Rehab for Dogs After TPLO Surgery. tploinfo.com
Edmonton West Animal Hospital. TPLO Rehabilitation Guide. vetinedmonton.com
PMC. Effects of Underwater Treadmill Programme on Canine Joint Range of Motion. ncbi.nlm.nih.gov

Read Blog Post

TPLO

5 min read

10 Essential TPLO Recovery Tips for Pet Owners

Help your dog heal faster after TPLO surgery with these 10 simple, vet-approved recovery tips every pet owner should know

TPLO recovery takes 8 to 12 weeks of structured care. Most owners know the broad requirements -- rest, medications, vet visits -- but the specific actions that protect recovery are less obvious.

These 10 tips translate the key principles of TPLO recovery into concrete, actionable guidance.

Quick answer: The 10 most essential TPLO recovery tips: keep the e-collar on; give medications on schedule; confine in weeks 1 to 2; inspect the incision daily; apply cold therapy for 3 to 5 days; use a leash indoors; provide mental stimulation; clean bedding weekly; attend check-ups; call the vet early if something looks wrong.

Key takeaways

E-collar compliance is the highest-priority single action: VetSurgInfo confirms most TPLO incision infections are caused by licking; the e-collar must stay on at all times for 10 to 14 days
Medication timing matters as much as compliance: giving NSAIDs and gabapentin at the exact scheduled intervals maintains therapeutic blood levels; gaps allow pain to break through
Strict confinement in weeks 1 to 2 prevents plate failure: jumping, slipping, or running applies forces to the plate that risk displacement before the osteotomy heals
Daily incision inspection detects infection before it becomes deep: the window between superficial and deep infection is days; daily inspection closes that window
Cold therapy in the first 72 hours is the most underused home tool: 10 to 15 minutes, 3 to 4 times daily, reduces swelling and pain in the acute phase
Mental stimulation replaces physical activity: a bored dog becomes restless and moves; food puzzles, lick mats, and scent games provide neural reward without mechanical risk

Tip 1: Keep the e-collar on without exception

The e-collar is not a suggestion.

A single licking episode can inoculate the incision with S. pseudintermedius from the dog's oral cavity, introducing infection that may require antibiotics or, in the worst case, plate removal.

VetSurgInfo confirms: most incision infections are due to licking; the cone is the mainstay for avoiding incision infections.

The best test: place peanut butter on the dog's leg before surgery and check whether they can reach it with the collar on. If they can, the collar is not effective.

The e-collar must stay on during sleep, during unsupervised periods, and any time the dog is not under direct visual supervision. Remove only for supervised eating and drinking, then immediately replace it.

Tip 2: Give all medications on schedule

Pain medications work through consistent blood levels. An NSAID given 2 hours late allows a pain gap that makes the dog uncomfortable.

Discomfort leads to restlessness, inability to settle, and -- critically -- attempts to move around or adjust position that stress the plate.

Medcovet confirms: a strong TPLO surgery recovery plan includes pain management with prescribed pain medication to ensure comfort during the initial recovery phase.

Practical guidance:

Set phone alarms for each medication
Give NSAIDs with food to reduce gastric irritation
Never double dose if a dose is missed -- contact your vet for guidance
Time gabapentin/trazodone about 30 minutes before anticipated stressful periods (vet visits, times when other family members arrive home)

Tip 3: Confine strictly in weeks 1 to 2

The first 14 days are the highest-risk period for plate displacement.

The osteotomy site has the least mechanical strength at this stage and cannot tolerate the forces generated by running, jumping, or sudden twisting.

SustainableVet.org confirms: dogs typically need 6 to 8 weeks of restricted activity; strict confinement ensures the bone plate stabilizes and heals properly.

Confinement means:

Crate or exercise pen at all times when not supervised
Bathroom leash walks of 5 minutes maximum, 3 to 5 times daily
No stairs, no furniture access, no running
All other pets separated from the recovering dog

Tip 4: Inspect the incision daily

A 30-second daily inspection at the same time each day catches early infection before it progresses. Normal healing shows consistently fading redness, no discharge, and a healing incision line.

Early infection shows spreading redness, cloudy or malodorous discharge, or increasing warmth.

Medcovet confirms: a strong recovery plan includes wound care and close monitoring of the surgical site.

What to look for:

Redness: fading daily from day 5 onward is normal; spreading is not
Discharge: clear serum only in the first 2 to 3 days is normal; anything cloudy or malodorous at any stage is not
Warmth: mild for the first week; increasing after day 5 is a warning sign

Tip 5: Do cold therapy in the first 3 to 5 days

Cold therapy reduces swelling, pain, and inflammation during the acute post-surgical phase. It is the most effective home intervention for managing early post-TPLO swelling and the least frequently done consistently.

SustainableVet.org confirms: cold therapy, like applying an ice pack wrapped in a towel for 10 to 15 minutes several times a day during the first 72 hours, helps reduce inflammation.

Wrap an ice pack in a thin cloth. Apply to the incision for 10 to 15 minutes, 3 to 4 times daily. Begin day 1 and continue through day 5.

Never place ice directly on skin.

Tip 6: Leash the dog indoors

A house leash held by the owner prevents sudden movements that cause plate failure: slipping, running to the door, or startling at a noise.

Every uncontrolled moment indoors is a risk. The house leash gives the owner instant control.

Tip 7: Provide mental stimulation instead of physical exercise

A dog with no cognitive engagement will self-stimulate physically. Mental stimulation provides the same dopamine reward as physical activity without mechanical impact on the healing plate.

SustainableVet.org confirms: redirect energy through mental stimulation like puzzle feeders or scent games; a mentally stimulated dog is less likely to feel the physical restrictions.

Effective options:

Frozen Kong: stuffed with wet food or peanut butter (xylitol-free) and frozen
Lick mat: spread wet food or peanut butter on a textured mat
Scatter feeding: spread kibble across a towel or crate mat
Sniff games: hide treats in a muffin tin covered with tennis balls

Tip 8: Keep bedding clean weekly

Dirty bedding accumulates S. pseudintermedius and other bacteria from the dog's skin. The healing incision is in close proximity to bedding throughout recovery.

Contaminated bedding is a low-grade but continuous source of bacteria that can reach the incision.

TPLO Info confirms: dogs do not like dirty bedding; wash crate items at least once a week to keep them clean and free of dog fur.

Wash bedding in hot water with laundry detergent. Air dry or use a hot dryer cycle. Replace immediately with clean bedding.

Tip 9: Attend all scheduled vet appointments

The 2-week, 6-week, and 12-week checkpoints each have a specific clinical purpose. Missing them means missing the opportunity to catch complications before they become serious.

Texas A&M VetMed confirms: complications are easier to manage when caught early; minor issues may be resolved with oral medications and rest, but evaluation and X-rays may still be needed.

What happens at each visit:

2-week: incision assessment, suture removal, pain management review
6-week: radiograph of osteotomy, activity level adjustment based on healing
12-week: final radiograph, clearance for return to full activity

Tip 10: Call the vet early, not late

The most common mistake owners make is waiting to see if something resolves on its own.

A sign that is concerning today and is still concerning tomorrow warrants a call -- not continued observation.

Texas A&M VetMed confirms: if anything seems off during recovery, it is always best to contact the surgical team immediately rather than waiting.

Call same day or immediately if:

Any cloudy, yellow, green, or malodorous wound discharge
Redness spreading beyond the incision line
Fever, lethargy, or loss of appetite
Lameness worsening after prior improvement
Wound edges separating

For the full recovery timeline, see what to expect after TPLO surgery in dogs. For confinement setup, see how to confine your dog after TPLO surgery.

For keeping the dog calm, see how to keep a dog calm after TPLO surgery. For the infection prevention guide, see post-operative care mistakes that increase TPLO infection risk.

Frequently asked questions

How strict does the activity restriction need to be?

Very strict in weeks 1 to 2. The dog cannot run, jump, use stairs, or play with other pets. Leash walks of 5 minutes for bathroom purposes only.

This is not an exaggeration -- a single running episode in the first 2 weeks can displace the plate and require revision surgery.

My dog seems completely fine by week 2. Can I relax the restrictions?

No. Clinical improvement (the dog appears comfortable and energetic) does not mean the osteotomy is healed.

The plate holds the rotated tibial plateau in position while new bone grows across the cut -- a process that takes 8 to 12 weeks regardless of how well the dog appears.

Radiographic confirmation of healing is required before any restriction is relaxed.

Which medication side effects should I watch for?

NSAIDs: vomiting, diarrhea, reduced appetite, dark stools (suggests GI bleeding). Gabapentin: sedation (which is expected), unsteadiness (monitor and report if severe). Trazodone: sedation (expected), vomiting in some dogs.

Contact your vet if any medication appears to be causing significant side effects -- alternatives are usually available.

Can I give my dog human supplements like fish oil or turmeric during recovery?

Fish oil (omega-3 fatty acids) is generally considered safe and potentially beneficial for joint health.

However, do not add any supplement without discussing with your vet first -- some supplements interact with NSAIDs or affect bleeding. Turmeric in high doses has similar concerns. When in doubt, ask.

My dog is crying or whining a lot. Should I give extra pain medication?

No -- never give extra medication beyond what is prescribed without vet guidance. Contact your vet and describe the pain signs.

They may adjust the dosing schedule, add a medication, or ask you to bring the dog in.

Whining can also reflect anesthesia effects, anxiety, or opioid dysphoria rather than uncontrolled pain -- your vet can help distinguish these.

Resources

VetSurgInfo. TPLO Recovery Tips. vetsurginfo.com
Medcovet. Essential Guide to Dog Recovery TPLO Surgery. medcovet.com
Texas A&M VetMed. TPLO Recovery: Setting Pets Up for Success. vetmed.tamu.edu
SustainableVet. 10 Essential TPLO Recovery Tips for Pet Owners. sustainablevet.org

Read Blog Post

TPLO

5 min read

TPLO Plate Removal Recovery Guide

Learn about TPLO plate removal recovery, including healing time, care tips, risks, and what to expect after surgery.

The TPLO plate is designed to stay in permanently. TPLO Info confirms that implants are designed to stay in for life they only need to be removed if a problem develops.

When plate removal is necessary, it is generally a less complex procedure than the original TPLO, and most dogs recover well.

Understanding when removal is needed, what recovery involves, and what to watch for helps owners navigate this phase confidently.

Quick answer: TPLO plate removal is performed when the plate causes infection, chronic pain, or implant failure. Recovery takes 6 to 12 weeks: 2 weeks for wound healing, 6 to 8 weeks for bone remodeling at the screw holes. Activity restriction for at least 6 weeks is required.

Key takeaways

The TPLO plate does not routinely need to be removed: designed for permanent placement; removal is only indicated when it causes a problem
The three main reasons for plate removal are: infection, chronic implant-associated pain causing ongoing lameness, and implant failure requiring revision
Removal is only safe after the osteotomy has healed: typically 6 to 12 months post-TPLO once radiographs confirm bone union
Recovery after plate removal takes 6 to 12 weeks: 2 weeks for wound healing; 6 to 8 weeks for bone remodeling
Screw holes take 6 to 8 weeks to remodel: cortical defects temporarily weaken the bone; activity restriction prevents fracture
Most dogs improve significantly after plate removal: implant irritation-related lameness typically resolves within weeks of removal

When is TPLO plate removal necessary?

Infection involving the implant (most common indication)

Bacterial biofilm colonizing the implant surface is the most common reason for plate removal.

Implant-associated infections often fail to resolve with antibiotics alone because bacteria form protective biofilms on the metal surface that antibiotics cannot penetrate adequately.

Once the osteotomy has healed typically at 6 to 12 months post-TPLO the plate can be safely removed, the bone is debrided, and the infection treated without the implant present.

Veterinary Orthopaedic and Mobility Center (VOMC) confirms that infection is the most common reason for implant removal.

For the full infection guide, see TPLO plate infection signs and treatment and when does a TPLO implant need to be removed due to infection.

Implant-associated pain without infection

Some dogs develop chronic lameness caused by the plate irritating surrounding soft tissues rather than infection.

The plate may irritate the periosteum, cause a local inflammatory reaction to the metal, or become symptomatic once the dog returns to activity.

TPLO Austin confirms: in rare instances, patients may simply be uncomfortable with the presence of the plate. In these cases, removal of the plate after bone healing will typically resolve the lameness.

Implant failure

If the plate bends, breaks, or screws loosen or fail, structural revision may be required.

Depending on the degree of bone healing at the time of failure, revision may involve plate removal and replacement, or removal alone once healing is sufficient.

TPLO Austin notes this is a very rare complication (under 1%) when activity restriction protocols are followed.

When is plate removal safe?

Plate removal requires confirmed radiographic bone healing the osteotomy must be fully bridged before the plate is removed.

The plate is the only structure holding the osteotomy in place; removing it before healing is complete risks the bone segments displacing.

Sustainablevet.org confirms: the plate can be removed once the bone is fully healed, typically 6 to 12 months after the operation.

SustainableVet's clinical guide for post-removal recovery confirms: removing hardware too early or in cases with incomplete healing increases the risk of delayed union or fracture. Careful radiographic assessment before surgery is essential.

The plate removal procedure

Plate removal is performed under general anesthesia. The original incision is reopened, the plate and screws are removed, and the wound is closed.

The procedure is significantly shorter and simpler than the original TPLO there is no bone cutting or rotation involved.

Vetplayas explains that the procedure involves removing the metal plate and screws from the tibia, with the wound closed in layers after removal.

If the indication was infection, the bone surface around the screw holes is debrided and the area flushed thoroughly. Bacterial culture is obtained to guide antibiotic selection.

Recovery timeline after TPLO plate removal

Weeks 1 to 2: wound healing

The incision heals similarly to the original TPLO incision. Pain management with NSAIDs and, in many cases, gabapentin is prescribed. The dog is confined and leash-walked only. Cold packing reduces post-surgical swelling.

SustainableVet's recovery guide confirms: the first 2 weeks focus on wound healing and pain management after surgery.

Weeks 2 to 8: bone remodeling

The primary recovery challenge after plate removal is the screw holes left in the tibia. These cortical defects temporarily reduce bone strength at those sites.

The bone requires 6 to 8 weeks to remodel and fill in these defects before normal activity loads can be tolerated.

SustainableVet's clinical guide confirms: bone typically requires 6 to 8 weeks post-plate removal to regain sufficient strength; high-impact activities must be limited during this critical period to prevent fracture.

Activity restrictions during recovery

Leash walks only for the first 6 weeks minimum
No running, jumping, stairs, or off-leash activity
Rehabilitation exercises (PROM, sit-to-stand, controlled leash walks) as prescribed
8-week radiographs typically required to confirm screw hole remodeling before return to normal activity

Weeks 8 to 12: return to activity

If radiographs at week 8 confirm adequate bone remodeling, the surgeon approves progressive return to normal activity. Most dogs return to full activity by 10 to 12 weeks post-removal.

Complications of plate removal

Infection: the surgical site can develop a new infection during the removal procedure. Strict aseptic technique and sometimes antibiotic prophylaxis reduce this risk.

Fracture through screw holes: the cortical defects from screw removal temporarily weaken the bone. Activity restriction during the remodeling phase is essential to prevent fracture through these sites.

Delayed union: rare, but can occur if the bone at the surgical site is already compromised by chronic infection.

Incomplete resolution: if implant irritation was the indication and lameness persists after removal, additional investigation (nerve involvement, joint pathology) is warranted.

For the cost of plate removal, see TPLO plate removal cost.

Frequently asked questions

Does every TPLO dog eventually need the plate removed?

No. Most dogs retain the plate for life without problems. TPLO Info confirms that implants are designed to stay in place permanently.

Plate removal is only performed when there is a clinical indication: infection, persistent lameness from implant irritation, or implant failure.

How long does it take to recover from plate removal?

Generally 6 to 12 weeks, depending on the indication and the individual dog. Infection cases may take longer because bone debridement and antibiotic treatment add complexity.

Straightforward irritation-related removals with no infection typically have the shorter end of this timeline.

Is plate removal surgery serious?

It is a general anesthetic procedure and carries the standard risks of any surgical intervention, but it is significantly simpler than the original TPLO.

The main specific risk is fracture through the screw holes if activity restriction is not followed. Most dogs do well with appropriate post-operative care.

Can the plate be removed too early?

Yes, and this is dangerous. Removing the plate before the osteotomy has fully healed causes the bone segments to lose their only structural support, potentially leading to displacement or fracture.

Radiographic confirmation of bone healing is mandatory before plate removal is scheduled.

Will my dog need another round of rehabilitation after plate removal?

Typically a milder version, yes controlled leash walks, PROM if stiffness is present, and gradual return to activity over 6 to 12 weeks.

Dogs that had ongoing lameness from implant irritation often improve quickly once the plate is removed, but the bone still requires the restricted activity period regardless of how well the dog feels.

Resources

TPLO Info. Step 6: TPLO Surgery Recovery Process. tploinfo.com
TPLO Austin. Step 6: TPLO Surgery Recovery. tploaustin.com
Vetplayas. Ensuring a Successful TPLO Plate Removal Recovery. vetplayas.com
VOMC. TPLO Veterinary Orthopaedic and Mobility Center. vomcvet.com
VCA Animal Hospitals. Tibial Plateau Leveling Osteotomy (TPLO) in Dogs. vcahospitals.com

Read Blog Post

TPLO

5 min read

What to Expect After TPLO Surgery in Dogs

Learn what to expect after TPLO surgery, including pain, swelling, healing time, and care tips for your dog’s smooth recovery.

TPLO recovery is a structured 8 to 12 week process. The surgery takes 1.5 to 2 hours; the recovery takes months.

Understanding what is normal at each stage allows owners to support recovery confidently, recognize complications early, and avoid mistakes that extend recovery or cause setbacks.

Quick answer: After TPLO surgery, expect 8 to 12 weeks of graduated activity restriction. Weeks 1 to 2: crate rest, short walks, e-collar on. Weeks 3 to 8: progressive walks and range-of-motion exercises. Weeks 8 to 12: confirm bone healing and resume normal activity. Full muscle recovery takes 6 months.

Key takeaways

The 8 to 12 week bone healing period is non-negotiable: the plate holds the osteotomy until new bone consolidates; premature high-impact activity before radiographic healing can cause plate failure
Weeks 1 and 2 are highest-risk for infection and wound complications: the incision is healing; activity and wound management must be strictly controlled
Most dogs begin partial weight bearing within the first few days: early weight bearing maintains muscle mass and supports bone healing per TPLO Info
The 2-week recheck, 6-week radiograph, and 12-week radiograph are essential milestones: each has a specific purpose; missing them risks missing early complications
Full muscle recovery takes up to 6 months after bone healing is confirmed; bone union and functional recovery are not the same endpoint
The e-collar must stay on for 10 to 14 days without exception: licking is the leading owner-controlled cause of TPLO surgical site infection

Immediately after surgery: days 1 to 3

Coming home

Dogs are typically discharged 24 to 48 hours after TPLO surgery, or sometimes the same day at facilities with same-day discharge protocols.

The dog will be sedated, disoriented from anesthesia, and may have bandaging on the surgical leg.

Expect:

Groggy, disoriented behavior for 12 to 24 hours from anesthesia
Some whining or restlessness (normal -- from anesthesia, not necessarily pain)
Refusal to bear weight on the operated leg
Mild to moderate swelling around the incision, peaking at days 2 to 3

Pain management

Give prescribed medications on the exact schedule provided. Typical medications include NSAIDs (meloxicam, carprofen, or similar) and gabapentin. Give NSAIDs with food to reduce gastric irritation.

TPLO Info confirms: dogs may experience slight discomfort from surgical inflammation in the days following surgery; this should be managed with appropriate pain medications given on schedule.

Confinement

Strict crate rest or confinement in a small, non-slippery room. No stairs, no jumping, no access to furniture. Leash walks outdoors for bathroom purposes only, 3 to 5 minutes, multiple times daily.

Weeks 1 to 2: incision healing phase

This is the highest-risk period for wound complications and infection.

Incision care:

E-collar must be on at all times except supervised eating and drinking
Keep the incision dry -- no baths, no wet grass walks
Inspect the incision daily for spreading redness, cloudy or malodorous discharge, or wound dehiscence
Normal: a small amount of clear serum discharge in the first 2 to 3 days; mild redness at the incision line fading from day 5 onward
Abnormal: spreading redness, cloudy discharge, increasing warmth, or wound edges separating -- contact your vet immediately

Activity:

Leash walks only, 5 minutes maximum, multiple times daily
No running, jumping, stairs, or playing with other pets
No unsupervised time without the e-collar

Weight bearing:

Many dogs begin toe-touching within the first few days
Some dogs refuse weight bearing for the full two weeks -- this is also normal
Encouraging gentle, slow walking on a leash helps maintain muscle mass

2-week recheck:SustainableVet.org confirms: the 2-week visit confirms incision healing, removes sutures or staples if healing is complete, and reviews pain management and early mobility status.

Weeks 3 to 6: progressive walking phase

The incision is closed; the focus shifts to controlled progressive activity increase and gentle range of motion.

Activity:

Increase leash walk duration gradually -- TPLO Info recommends increasing by up to 5 minutes per week from the week 2 baseline
No off-leash activity, no running, no jumping, no stairs without a ramp
No playing with other pets

Range-of-motion exercises:

Passive range-of-motion (PROM) exercises can begin in most dogs at weeks 2 to 4 if the vet approves
Gentle flexion and extension of the stifle for 5 to 10 repetitions, 2 to 3 times daily
Supports joint flexibility and prevents stiffness during the bone healing period

Weight bearing:

By weeks 3 to 4, most dogs are consistently bearing weight on the operated leg
Occasional toe-touching or three-legged walking during activity is still normal

What to watch for:

Lameness that worsens after a period of improvement (trajectory reversal)
New swelling at the plate site, separate from the healed incision
Any discharge from the healed wound area

Weeks 6 to 8: early consolidation phase

6-week radiograph (critical milestone):SustainableVet.org confirms: the 6-week visit includes follow-up radiographs to evaluate bone alignment and early plate stability; if healing looks good, limited physical therapy or short walks may begin.

If the radiograph shows good progression of bone healing, activity is increased. If healing is delayed, restrictions continue with a re-radiograph at 8 weeks.

Activity (if healing is confirmed):

Leash walks increasing to 15 to 20 minutes twice daily
Rehabilitation exercises as directed
Hydrotherapy (if available) is an excellent low-impact option for muscle building

Weeks 8 to 12: bone consolidation and return to activity

Follow-up radiograph at 8 to 10 weeks:Medcovet confirms: a follow-up radiograph is commonly performed at weeks 8 to 10 to assess bone healing; if healing is good, the vet may approve a gradual increase in activity.

12-week visit (major milestone):SustainableVet.org confirms: the 12-week visit includes final radiographs to confirm bone fusion and plate integrity; the vet may lift most activity restrictions at this stage.

Activity (if healing confirmed at 12 weeks):

Progressive return to normal activity
Running, jumping, and play can gradually resume over weeks 12 to 16
Supervised play and controlled activity continue until full muscle recovery

Animal Outpatient Surgery confirms: full muscle recovery takes up to 6 months to restore full strength and coordination in the operated leg.

Medications and supplements

NSAIDs: given for 2 to 4 weeks post-surgery or as directed. Never exceed the prescribed dose; never use human NSAIDs (ibuprofen, aspirin) -- they are toxic to dogs.

Gabapentin: helps with pain and anxiety in the early recovery period; typically tapered off after 2 to 4 weeks.

Joint supplements: glucosamine and omega-3 fatty acids are commonly recommended for long-term joint health. Starting them at surgery is reasonable; discuss with your vet.

Signs requiring immediate veterinary contact

At any stage of recovery, contact your vet immediately if you see:

Spreading redness or warmth at the incision or plate site
Cloudy, yellow, green, or malodorous discharge from the wound
Wound edges separating
Severe worsening of lameness
Fever, lethargy, or loss of appetite beyond the first 2 to 3 days
Any draining tract opening near the surgical site

For the week-by-week rehabilitation exercises guide, see TPLO recovery exercises for dogs. For the infection prevention guide, see how can TPLO infections be prevented post-operatively?.

For the PROM exercises guide, see PROM exercises for dogs after TPLO surgery. For the earliest infection signs, see earliest signs of TPLO infection.

Frequently asked questions

When will my dog be back to normal after TPLO?

Bone healing is typically confirmed by radiograph at 8 to 12 weeks. Most activity restrictions are lifted at the 12-week mark.

Full muscle recovery and functional normalization takes up to 6 months from surgery.

TPLO has a high success rate (more than 90%) and most dogs return to their pre-injury activity level after full recovery.

My dog is not using the leg at all after surgery. Is that normal?

Some dogs refuse to bear weight for the full first 2 weeks. This is within normal range.

If the dog was bearing some weight and has now stopped completely after day 5, contact your vet to rule out a complication.

PROM exercises and gentle encouraged walking help prompt early weight bearing.

Can my dog go up stairs during recovery?

Not during weeks 1 to 6. Stairs generate impact and torsion on the healing osteotomy. Carry small dogs over stairs or use a ramp.

Larger dogs may need a sling or harness to assist navigating a small number of essential steps.

When can my dog swim or do hydrotherapy?

Hydrotherapy (underwater treadmill or controlled pool swimming) typically begins after incision healing is confirmed at 2 weeks. Check with your vet.

Swimming in open water (lakes, rivers) is not appropriate until the vet explicitly clears the dog, typically after the 12-week radiograph.

When should I be concerned about my dog's pain during recovery?

Increasing pain after initial improvement -- the dog more lame or more distressed today than yesterday -- is the key warning sign. Normal recovery pain decreases progressively.

Worsening pain warrants veterinary assessment to rule out infection, implant complication, or late meniscal injury.

Resources

TPLO Info. What to Expect After Your Dog's TPLO Surgery. tploinfo.com
Animal Outpatient Surgery. What to Expect After Your Dog's TPLO Surgery. animaloutpatientsurgery.com
Medcovet. Essential Guide to Dog Recovery TPLO Surgery. medcovet.com
VCA Animal Hospitals. Tibial Plateau Leveling Osteotomy (TPLO) in Dogs. vcahospitals.com

Read Blog Post

TPLO

5 min read

What is TPLO Surgery in Dogs?

What is TPLO in dogs? A surgery to fix CCL injuries, restore mobility, and prevent arthritis. Learn the procedure, benefits, risks, and recovery timeline.

TPLO (tibial plateau leveling osteotomy) is the most widely performed surgery for cranial cruciate ligament (CCL) rupture in dogs.

It is the procedure most commonly recommended by board-certified veterinary surgeons for medium and large dogs, and it has the most extensive published evidence base of any CCL repair technique.

Understanding what TPLO is, why it works, and what recovery involves helps owners make informed decisions and prepare for the process.

Quick answer: TPLO (tibial plateau leveling osteotomy) corrects CCL rupture by changing tibial plateau geometry to eliminate the shear force making the CCL unnecessary. A curved cut is made through the tibia, rotated to 5 degrees, and secured with a locking plate while the bone heals. Success rate is 90 to 95%.

Key takeaways

TPLO stands for tibial plateau leveling osteotomy: it levels the tibial plateau through a bone cut to stabilize the stifle without relying on the damaged CCL
TPLO corrects CCL rupture by eliminating the shear force the CCL resists: it changes the tibial plateau geometry so the joint is stable without a CCL
The procedure achieves a post-operative tibial plateau angle of approximately 5 degrees: VCA confirms the tibial plateau is rotated until appropriately level (ideally 5 degrees), eliminating cranial tibial thrust
TPLO has a 90 to 95% success rate: RCVS confirms 90 to 95% of dogs regain complete or near-complete function; 93% of owners report satisfaction at 12 months
Recovery requires 8 to 12 weeks of activity restriction for bone healing; progressive return to full activity follows; muscle recovery takes up to 6 months
TPLO is the most commonly recommended procedure for CCL rupture by ACVS surgeons in dogs over approximately 15 to 20 kg

The CCL and why it ruptures

The cranial cruciate ligament (CCL) is the equivalent of the human ACL in dogs.

It connects the femur (thigh bone) to the tibia (shin bone) inside the stifle (knee) joint and serves three primary functions:

Preventing the tibia from sliding forward relative to the femur during weight bearing
Limiting internal rotation of the tibia
Preventing hyperextension of the stifle

Unlike most human ACL tears (which are acute traumatic events), CCL rupture in dogs is typically degenerative. The fibers weaken progressively over months to years before the ligament fails completely.

By the time complete rupture occurs, most of the fibers have already been compromised.

This is why the contralateral (opposite) CCL is also at risk -- the same degenerative process typically affects both stifles.

When the CCL ruptures, the tibial plateau's natural slope creates an unconstrained cranial shear force during weight bearing.

The femur slides down the tibial plateau, the tibia shifts forward, and the dog is in pain and unable to use the leg normally.

CCL rupture is one of the most common orthopedic injuries in dogs. High-risk breeds include Labrador Retrievers, Rottweilers, Staffordshire Terriers, Mastiffs, Newfoundlands, and German Shepherds.

Neutered dogs have a higher risk than intact dogs of the same breed.

How TPLO works: the biomechanical principle

The normal canine tibial plateau slopes downward from front to back at approximately 23 to 29 degrees (the tibial plateau angle, or TPA).

When the dog bears weight, this slope creates a cranial shear force -- the tibia tries to slide forward relative to the femur. In a normal stifle, the CCL resists this force.

When the CCL is absent, the force is unopposed and the joint is unstable.

TPLO does not attempt to restore the CCL. Instead, it eliminates the shear force entirely.

By rotating the tibial plateau to approximately 5 degrees, the joint surface becomes level enough that the patellar tendon -- rather than the CCL -- provides the stabilizing force during weight bearing.

The joint is mechanically stable without any ligament. The need for the CCL is eliminated by changing the geometry of the tibial plateau.

Dispomed confirms: TPLO addresses CCL rupture by altering the biomechanics of the stifle. The tibial plateau normally slopes downward; TPLO creates a flat or level plateau, decreasing sliding motion at this joint.

The TPLO procedure: step by step

Pre-operative planning

Before surgery, the dog is sedated and lateral stifle radiographs are taken.

The surgeon measures the TPA from these images and calculates the amount of rotation required to achieve the target post-operative TPA of approximately 5 degrees.

The surgeon also selects the appropriate saw blade radius and implant size based on these measurements and the dog's body weight.

Anesthesia and preparation

The dog is placed under general anesthesia. The surgical site is clipped and prepared with antiseptic solution. IV antibiotics (typically cefazolin) are given before the incision.

Joint inspection and meniscal assessment

The surgeon makes an incision over the medial aspect of the proximal tibia and performs a small arthrotomy (opening into the joint) to inspect the menisci.

Damaged meniscal tissue is removed at this stage.

Chewy confirms: during surgery, the joint is examined and the surgeon might remove damaged tissue before proceeding with the osteotomy.

The osteotomy

Using a specialized oscillating saw blade, the surgeon makes a curved (arcuate) cut through the proximal tibia at the level of the tibial plateau.

The radius of this cut is determined by the pre-operative planning.

Rotation

The cut bone segment (containing the tibial plateau) is rotated backward (caudally) by the calculated amount to achieve the target TPA.

VCA Animal Hospitals confirms: the top section of the tibia is rotated backward until deemed appropriately level -- typically 2 to 14 degrees, with 5 degrees as the ideal angle.

Plate fixation

A TPLO plate (a contoured locking plate) is secured to the tibia across the osteotomy using locking screws. The plate holds the rotated tibial plateau in position while the bone heals.

Closure

The joint capsule, fascia, subcutaneous tissue, and skin are closed in layers. The incision is bandaged.

Success rate and outcomes

RCVS Canine Cruciate Registry confirms: TPLO has a 90 to 95% success rate, with 90 to 95% of dogs regaining complete or near-complete function; 93% of owners reporting satisfaction at 12 months.

A 2013 study found that TPLO patients achieved 93% restoration of limb function at 1 year.

TPLO produces better long-term outcomes than lateral suture stabilization in most studies of large dogs, and similar long-term outcomes to TTA in comparable patient populations.

RCVS confirms: all dogs with CCL rupture are expected to develop at least some osteoarthritis, but this is reduced or delayed in dogs that have had surgical stabilization.

Recovery overview

Weeks 0 to 2: crate rest, 5-minute bathroom leash walks only, e-collar on at all times
Weeks 2 to 6: graduated leash walk increase, passive range-of-motion exercises
Week 6: radiographic assessment of bone healing; activity increase if healing is progressing
Weeks 8 to 12: final radiographic confirmation of bone healing; activity restrictions lifted if healing is confirmed
Months 3 to 6: progressive return to full activity; muscle recovery continues

For the full recovery guide, see what to expect after TPLO surgery in dogs. For the surgery comparisons, see TPLO vs CBLO vs TTA: a guide to cruciate surgery options.

For preparation, see preparing for your dog's TPLO surgery. For the signs that TPLO may be needed, see 13 signs your dog may need TPLO surgery.

Frequently asked questions

Is TPLO the only surgery for CCL rupture in dogs?

No. The main alternatives are lateral suture stabilization (extracapsular repair), TTA (tibial tuberosity advancement), and CBLO (CORA-based leveling osteotomy). Lateral suture achieves good outcomes in dogs under approximately 35 pounds.

TTA produces similar long-term outcomes to TPLO in appropriately selected dogs. CBLO is used mainly for immature dogs and revision surgery cases.

Can a dog live without surgery for CCL rupture?

Small dogs (under 10 to 15 kg) sometimes stabilize adequately with conservative management (strict rest, weight management, joint support).

For most dogs over 15 kg, conservative management does not restore normal joint stability and the dog remains in pain with progressive arthritis.

Surgery is strongly recommended for most medium and large dogs.

How long does TPLO surgery take?

The procedure typically takes 1.5 to 2 hours. Bilateral simultaneous TPLO takes 3 to 4 hours.

Does the TPLO plate stay in permanently?

Yes, in most cases. The plate is not routinely removed after the osteotomy heals. It is removed if it causes complications (infection, implant irritation, failure).

What is the cost of TPLO surgery?

TPLO typically costs $3,500 to $6,000 per stifle depending on the facility, surgeon, geographic location, and the dog's size.

This typically includes the surgical procedure, anesthesia, hospitalization, implants, and the immediate post-operative period.

Resources

RCVS Canine Cruciate Registry. Tibial Plateau Levelling Osteotomy (TPLO). rcvsknowledge.org
VCA Animal Hospitals. TPLO. vcahospitals.com
Dispomed. TPLO Surgery in Dogs: Success Rates and Alternatives. dispomed.com
ACVS. Cranial Cruciate Ligament Disease. acvs.org

Read Blog Post

TPLO

5 min read

Modified Maquet Procedure vs TPLO Surgery

Compare Modified Maquet Procedure and TPLO surgery for canine cruciate ligament rupture treatment, including benefits, risks, and recovery.

The Modified Maquet Procedure (MMP) is an evolution of the Tibial Tuberosity Advancement (TTA) that uses a titanium foam wedge instead of a cage to advance the tibial tuberosity.

It has been positioned as a less invasive, faster-to-perform alternative to TPLO for dogs with CCL rupture.

Published clinical evidence shows both procedures produce good outcomes, with TPLO demonstrating a slight advantage in objective gait analysis at 3 months.

Quick answer: A prospective randomized study found TPLO achieves 93.9% of normal peak vertical force vs 89.4% for MMP at 6 months — no significant difference in complications or OA progression. MMP is less invasive, faster, and generally less expensive. Both are appropriate for medium-to-large breed dogs.

Key takeaways

TPLO achieves 93.9% of normal ground reaction force at 6 months vs 89.4% for MMP — numerically superior but not statistically significant
No significant difference in major complications or OA progression was found between TPLO and MMP in the comparative study
MMP is less invasive and faster to perform: a titanium foam wedge and partial osteotomy instead of TPLO's full proximal tibial cut
MMP is generally less expensive than TPLO: shorter surgical time and different implant costs reduce the procedure price
Early partial weight-bearing may occur sooner after MMP due to less invasive fixation and the partial osteotomy
TPLO has a much larger evidence base: 25+ years of data vs limited MMP evidence

How each procedure works

TPLO (Tibial Plateau Leveling Osteotomy)

TPLO addresses CCL rupture by making a curved osteotomy through the proximal tibia and rotating the tibial plateau to approximately 5 degrees.

This changes joint biomechanics so the stifle is stable during weight-bearing without a functioning CCL. The osteotomy is held in place with a bone plate and screws.

Modified Maquet Procedure (MMP)

MMP is an adaptation of TTA in which the tibial tuberosity is advanced cranially by making a partial osteotomy in the tibial crest.

A porous titanium foam wedge is inserted into the gap and a fixation staple holds the construct in position.

The cranial advancement of the tuberosity repositions the patellar tendon to neutralize the cranial thrust that occurs in the CCL-deficient stifle the same biomechanical principle as TTA, with different implants.

Animal Works Veterinary Surgery describes MMP as using improved implants and surgical techniques designed to reduce operating time and minimize complications compared to standard TTA.

The titanium foam wedge promotes bone ingrowth and healing without the need for a cage or plate system. Bone healing in the MMP osteotomy site is typically complete at 90 days radiographically.

Clinical evidence: TPLO vs MMP

Primary comparative study

PubMed (prospective randomized controlled study, 61 dogs, 76 joints): dogs were treated with TPLO (n=30, 41 joints) or MMP (n=31, 35 joints) and compared with healthy controls.

Outcomes were assessed by clinical examination, radiography, and treadmill force plate gait analysis at 6 weeks, 3 months, and 6 months.

Results at 6 months:

TPLO: 93.9% of normal peak vertical force (PVF), 85.9% of normal vertical impulse (VI)
MMP: 89.4% of normal PVF, 79.9% of normal VI

At 3 months, significantly more TPLO patients were within the reference range for healthy dogs on peak vertical force. By 6 months, the difference was not statistically significant.

No significant difference was found in major complications or OA progression at any time point.

Conclusion from the study: "Although no significant differences were found between the surgical methods, TPLO patients showed superiority with regard to clinical outcome."

MMP standalone study

PMC (35 dogs, unilateral CCL rupture, MMP): significant improvement in ground reaction forces at all time intervals. At 90 days, 54.2% of patients had a Symmetry Index suggesting normal gait.

Complete bone healing on radiographs at 90 days. Major complication rate: 8.5% (3 of 35), minor complication rate: 2.8%.

Practical comparison

Factor	MMP	TPLO
Mechanism	Tibial tuberosity advancement (titanium wedge)	Tibial plateau rotation (bone plate)
Invasiveness	Less invasive (partial osteotomy)	More invasive (full proximal tibial osteotomy)
Surgery time	Shorter	Longer
Bone healing (radiographic)	Approximately 90 days	8 to 12 weeks
Objective outcomes at 6 months	89.4% PVF	93.9% PVF
Major complication rate	8.5% in MMP standalone study	14 to 34% literature range for TPLO
Cost	Generally lower	Generally higher
Early weight-bearing	May be earlier	Typically from 10 to 14 days
Evidence base	Limited (newer procedure)	Extensive (25+ years)

Which dogs are best suited to each?

MMP is often chosen for:

Medium and large breed dogs where a less invasive approach is preferred
Cases where surgical time is a clinical consideration
Practices experienced in MMP technique
Dogs where cost is a factor

TPLO is typically recommended for:

Large and giant breed dogs with high joint loads
Dogs with steep tibial plateau angles where TPLO provides more precise biomechanical correction
Cases where the largest available evidence base is preferred
Surgeons with established TPLO experience

Animal Hospital of Adel notes that both surgeries are effective, with MMP being less invasive, less expensive, and quicker to perform.

Walkerville Vet's evidence review concludes that TPLO gives slightly better objective results and that MMP is expected to outperform standard TTA, though more evidence is needed.

For the full TPLO pros and cons, see TPLO surgery pros and cons for dogs. For the full alternatives overview, see alternatives to TPLO surgery for dogs.

Frequently asked questions

Is MMP as effective as TPLO for large dogs?

The evidence suggests TPLO has a slight advantage at 3 months, with equivalent outcomes by 6 months in the primary comparative study.

Most surgeons still prefer TPLO for large and giant breeds due to the larger evidence base and slightly superior short-term objective results. MMP is appropriate for many large dogs in experienced hands.

How much cheaper is MMP than TPLO?

MMP is generally less expensive than TPLO due to shorter surgical time and different implant costs. The specific difference varies by practice, region, and surgeon.

Ask your veterinarian for a direct cost comparison for your dog's specific case.

What is the complication rate for MMP compared to TPLO?

The MMP standalone study reported an 8.5% major complication rate. TPLO complication rates across the literature range from 14 to 34%.

However, these figures come from different study populations and settings, making direct comparison difficult. Neither procedure is free of risk.

How long does MMP recovery take compared to TPLO?

Both procedures require 8 to 12 weeks of restricted activity, though MMP's less invasive partial osteotomy may allow earlier partial weight-bearing in some dogs.

Full activity return for both procedures is typically at 4 to 6 months.

Can a dog have TPLO if MMP fails?

Yes. TPLO can be performed as a revision if MMP results in ongoing instability or poor function. The converse is less common.

Discuss revision options with an orthopedic specialist if your dog is not progressing as expected after MMP.

Resources

PubMed. Outcome after Tibial Plateau Levelling Osteotomy and Modified Maquet Procedure in Dogs with CCL Rupture. pubmed.ncbi.nlm.nih.gov
PMC. Outcome after Modified Maquet Procedure in Dogs: Force Plate Gait Analysis. ncbi.nlm.nih.gov
Animal Works Veterinary Surgery. MMP vs TPLO. animalworksvets.com
Dog Knee Injury. Modified Maquet Procedure (MMP Surgery) for Dogs. dogkneeinjury.com
Walkerville Vet. Which ACL Surgery Is Best for Dogs? walkervillevet.com.au

Read Blog Post

TPLO

5 min read

TPLO Failure Rate in Dogs Explained

Learn about TPLO failure rates in dogs, causes, prevention, and recovery tips for better surgical outcomes.

Tibial Plateau Leveling Osteotomy (TPLO) is a common surgery to fix cranial cruciate ligament injuries in dogs. Many pet owners worry about the TPLO failure rate in dogs and what it means for their pet’s recovery. Understanding the risks and outcomes can help you make informed decisions for your dog’s health.

This article explains what TPLO failure means, how often it happens, and what factors affect it. You will learn how to recognize complications, prevent failure, and support your dog after surgery for the best results.

What is the TPLO failure rate in dogs?

The TPLO failure rate in dogs varies but is generally low when performed by experienced surgeons. Failure means the surgery did not fully restore knee stability or complications occurred that affect recovery.

Studies show failure rates range from 2% to 10%, depending on factors like surgical technique and dog size. Most dogs recover well and regain normal function after TPLO.

Low overall failure: Most dogs have successful outcomes with TPLO, with failure rates usually under 10% in clinical studies.
Variation by surgeon: Surgeons with more experience tend to have lower failure rates due to better technique and planning.
Dog factors matter: Larger dogs or those with severe ligament damage may have a higher risk of failure after TPLO.
Definition of failure: Failure includes persistent lameness, implant problems, or the need for revision surgery after TPLO.

Understanding these rates helps you set realistic expectations and discuss risks with your vet before surgery.

What causes TPLO failure in dogs?

Several factors can lead to TPLO failure. Knowing these causes helps prevent problems and improve recovery chances.

Failures often result from surgical errors, infection, or poor healing. Other causes include implant issues and the dog’s activity level after surgery.

Surgical technique errors: Incorrect bone cuts or implant placement can cause instability or implant failure after TPLO.
Infection risk: Postoperative infections can delay healing and lead to surgery failure if not treated promptly.
Poor bone healing: Factors like age, nutrition, or underlying disease can slow bone healing and cause failure.
Excessive activity: Dogs that are too active too soon may damage the surgical site and cause failure.

Preventing these causes requires careful surgical planning, good postoperative care, and close monitoring.

How can TPLO failure be prevented in dogs?

Prevention of TPLO failure starts with choosing a skilled surgeon and following postoperative instructions closely. Proper care reduces complications and supports healing.

Owners play a key role in managing their dog’s activity and health during recovery to avoid failure.

Experienced surgeon choice: Select a board-certified surgeon with extensive TPLO experience to reduce technical errors.
Strict activity control: Limit your dog’s movement and exercise as advised to protect the surgical site during healing.
Infection prevention: Keep the incision clean and watch for signs of infection to catch problems early.
Follow-up visits: Regular vet check-ups help monitor healing and detect complications before failure occurs.

Following these steps improves your dog’s chance of a successful TPLO surgery and recovery.

What are the signs of TPLO failure in dogs?

Recognizing failure signs early lets you seek veterinary care promptly. Signs often involve ongoing lameness or swelling around the knee.

Not all postoperative discomfort means failure, but persistent or worsening symptoms should be evaluated by a vet.

Persistent lameness: Continued limping or inability to bear weight on the leg weeks after surgery may indicate failure.
Swelling or pain: Increased swelling, heat, or pain around the knee can signal infection or implant problems.
Unusual noises: Clicking or popping sounds from the knee might mean implant loosening or joint instability.
Reduced range of motion: Difficulty bending or extending the knee joint may suggest complications affecting recovery.

If you notice any of these signs, contact your veterinarian immediately for assessment and treatment.

How is TPLO failure treated in dogs?

Treatment depends on the cause of failure. Some cases require revision surgery, while others may respond to medical management.

Your vet will perform exams and imaging to determine the best approach to restore function and relieve pain.

Revision surgery: Some dogs need a second surgery to fix implant issues or correct bone alignment after failure.
Antibiotic therapy: Infections causing failure require antibiotics and sometimes implant removal to heal properly.
Pain management: Medications and physical therapy help control pain and improve mobility during recovery.
Supportive care: Weight management and controlled exercise support healing and reduce stress on the knee joint.

Early treatment improves outcomes and helps your dog regain normal activity levels.

What is the recovery outlook after TPLO failure in dogs?

Recovery after TPLO failure can be more challenging but is often successful with proper care. Many dogs regain good function after treatment.

Recovery time may be longer, and some dogs need ongoing management to maintain comfort and mobility.

Longer healing time: Dogs with failure often require extended recovery periods compared to uncomplicated TPLO cases.
Physical therapy benefits: Rehabilitation exercises improve strength and joint function after failure treatment.
Possible chronic issues: Some dogs may develop arthritis or mild lameness despite treatment.
Owner commitment: Consistent care and monitoring are essential for a positive recovery after failure.

With patience and veterinary support, many dogs live active, happy lives following TPLO failure treatment.

What factors affect TPLO failure rates in different dog breeds?

Breed and size influence TPLO outcomes. Larger and more active breeds may face higher failure risks due to greater joint stress.

Understanding breed-specific risks helps tailor surgical and postoperative care for better success.

Large breed challenges: Heavy dogs put more pressure on the knee, increasing the chance of implant failure or delayed healing.
Active breed risks: Energetic dogs may be harder to restrict post-surgery, raising failure risk from premature activity.
Bone quality differences: Some breeds have denser or more fragile bones affecting healing after TPLO.
Genetic predispositions: Certain breeds may be more prone to ligament injuries and complications after surgery.

Discuss your dog’s breed and lifestyle with your vet to plan the best approach for TPLO surgery and recovery.

Conclusion

The TPLO failure rate in dogs is generally low but depends on many factors like surgeon skill, dog size, and postoperative care. Understanding these helps you prepare for surgery and recovery.

By choosing an experienced surgeon, following care instructions, and watching for signs of failure, you can help your dog heal well and return to a happy, active life after TPLO surgery.

What is the typical TPLO failure rate in dogs?

TPLO failure rates usually range between 2% and 10%, with most dogs recovering successfully after surgery.

Can infection cause TPLO failure in dogs?

Yes, infections at the surgical site can lead to delayed healing and failure if not treated quickly with antibiotics and care.

How soon can dogs return to activity after TPLO?

Dogs typically need 8 to 12 weeks of restricted activity to allow proper healing and reduce the risk of failure.

Is revision surgery common after TPLO failure?

Revision surgery is sometimes necessary to correct implant or alignment issues when TPLO fails to restore knee stability.

Do larger dogs have higher TPLO failure rates?

Larger dogs often have increased failure risk due to greater joint stress and challenges in controlling postoperative activity.

Read Blog Post

TPLO

5 min read

Arthrex TPLO Plate Overview and Use

Learn about the Arthrex TPLO plate, its design, surgical use, and benefits for canine cruciate ligament repair.

The Arthrex TPLO plate is a specialized orthopedic implant designed to stabilize the tibia after a tibial plateau leveling osteotomy (TPLO) surgery in dogs. TPLO surgery is a common procedure to treat cranial cruciate ligament (CCL) rupture, which causes lameness and pain in dogs. Understanding the Arthrex TPLO plate helps pet owners and veterinarians appreciate how this device supports bone healing and restores limb function.

This article explains what the Arthrex TPLO plate is, how it is used during surgery, its design features, and the benefits it offers. You will learn about the surgical technique, implant materials, and postoperative care to ensure the best outcomes for dogs undergoing TPLO surgery.

What is the Arthrex TPLO plate?

The Arthrex TPLO plate is a metal implant used to fix the tibia after cutting and rotating the bone during TPLO surgery. It holds the bone segments securely to allow proper healing and restore normal joint mechanics. The plate is contoured to fit the shape of the canine tibia and is available in various sizes to match different dog breeds and sizes.

The plate works together with locking screws that provide stable fixation without compressing the bone excessively. This design helps reduce complications and promotes faster recovery.

Purpose of the plate: It stabilizes the tibia after osteotomy, maintaining the new bone angle to prevent joint instability and lameness.
Material composition: Made from medical-grade stainless steel or titanium, ensuring strength, biocompatibility, and corrosion resistance.
Plate design: Anatomically contoured to match the tibial shape, minimizing soft tissue irritation and improving fit.
Locking screw system: Uses locking screws that lock into the plate, providing angular stability and reducing screw loosening risks.

These features make the Arthrex TPLO plate a reliable choice for TPLO surgeries in veterinary orthopedics.

How is the Arthrex TPLO plate used in surgery?

During TPLO surgery, the surgeon makes a curved cut in the tibia and rotates the bone segment to change the slope of the tibial plateau. The Arthrex TPLO plate is then applied to hold the bone in its new position. Proper placement and fixation are critical for successful healing and restoring limb function.

The surgical steps include precise measurement, plate selection, and screw placement to ensure stability and avoid complications.

Osteotomy procedure: The tibia is cut using a saw guided by a jig to create a controlled curved osteotomy.
Plate positioning: The Arthrex TPLO plate is aligned over the osteotomy site to match the bone contour and rotated segment.
Screw insertion: Locking screws are placed through the plate holes into the bone, securing the plate firmly.
Verification of stability: The surgeon checks the fixation and limb alignment before closing the surgical site.

Following these steps ensures the plate supports the bone during healing and helps the dog regain normal limb use.

What are the advantages of using the Arthrex TPLO plate?

The Arthrex TPLO plate offers several benefits compared to traditional fixation methods. Its design and materials improve surgical outcomes and reduce postoperative complications. These advantages contribute to faster recovery and better function for dogs after TPLO surgery.

Understanding these benefits helps veterinarians choose the best implant for their patients.

Enhanced stability: Locking screw technology provides rigid fixation, reducing micromotion and promoting bone healing.
Reduced soft tissue damage: Anatomical contouring minimizes irritation and inflammation around the implant site.
Corrosion resistance: High-quality materials prevent implant degradation and inflammatory reactions over time.
Versatility in sizes: Multiple plate sizes accommodate different dog breeds, ensuring proper fit and function.

These features make the Arthrex TPLO plate a preferred choice for many veterinary surgeons performing TPLO surgeries.

What materials are used in the Arthrex TPLO plate?

The Arthrex TPLO plate is manufactured from biocompatible metals that provide strength and durability while minimizing adverse tissue reactions. The choice of materials affects the plate’s performance and long-term safety.

Knowing the materials helps veterinarians and pet owners understand implant behavior inside the body.

Stainless steel: Commonly used for its strength, corrosion resistance, and affordability in orthopedic implants.
Titanium alloy: Offers excellent biocompatibility, lighter weight, and reduced risk of allergic reactions.
Surface finish: Smooth, polished surfaces reduce tissue irritation and bacterial adhesion risks.
Radiopacity: Materials allow clear X-ray visualization to monitor implant position during follow-up.

These material properties ensure the Arthrex TPLO plate performs well during the healing process and remains safe long term.

How does the Arthrex TPLO plate support postoperative recovery?

Postoperative care is essential for successful healing after TPLO surgery using the Arthrex TPLO plate. The implant provides stable fixation, but proper management of the dog’s activity and monitoring are critical to prevent complications.

Understanding the role of the plate in recovery helps owners follow veterinary instructions effectively.

Early weight bearing: Stable fixation allows controlled limb use soon after surgery, promoting muscle strength and joint mobility.
Reduced risk of implant failure: Locking screws and plate design minimize loosening or breakage during recovery.
Radiographic monitoring: Regular X-rays check bone healing and implant position to detect issues early.
Physical therapy support: Rehabilitation exercises complement implant stability to restore normal gait and function.

Following these guidelines helps dogs recover faster and return to normal activity safely.

What complications can occur with the Arthrex TPLO plate?

While the Arthrex TPLO plate is designed to reduce complications, some risks remain. Awareness of potential problems helps veterinarians and owners recognize signs early and take action.

Most complications relate to surgical technique, implant placement, or postoperative care.

Infection risk: Surgical site infections can occur, requiring antibiotics or implant removal in severe cases.
Implant loosening: Poor screw fixation or excessive activity may cause the plate to loosen, affecting stability.
Delayed bone healing: Factors like poor blood supply or infection can slow osteotomy healing despite stable fixation.
Soft tissue irritation: Improper plate positioning may cause discomfort or swelling around the implant.

Close follow-up and adherence to postoperative instructions minimize these risks and improve outcomes.

Conclusion

The Arthrex TPLO plate is a vital implant in veterinary orthopedics for treating cranial cruciate ligament injuries in dogs. Its specialized design and locking screw system provide stable fixation, promote bone healing, and support early recovery.

Understanding the plate’s features, surgical use, and postoperative care helps pet owners and veterinarians ensure the best results after TPLO surgery. Proper implant selection and management reduce complications and help dogs regain normal limb function safely.

What sizes does the Arthrex TPLO plate come in?

The Arthrex TPLO plate is available in multiple sizes ranging from small to large to fit different dog breeds and tibial dimensions accurately.

Can the Arthrex TPLO plate be removed after healing?

Implant removal is not routinely required but may be performed if the dog experiences irritation, infection, or implant-related complications after bone healing.

How long does it take for the bone to heal with the Arthrex TPLO plate?

Bone healing typically takes 8 to 12 weeks, depending on the dog's age, health, and postoperative care quality.

Is the Arthrex TPLO plate MRI compatible?

Plates made from titanium alloys are generally MRI compatible, while stainless steel plates may cause artifacts or interference during imaging.

What postoperative care is recommended after TPLO surgery with this plate?

Recommended care includes restricted activity, pain management, physical therapy, and regular veterinary check-ups with radiographic monitoring to ensure proper healing.

Read Blog Post

TPLO

5 min read

Arthrex TPLO Weight Chart Explained

Understand the Arthrex TPLO weight chart and how it guides post-op care for dogs after TPLO surgery.

After TPLO surgery, one of the most important questions owners and rehabilitation teams ask is: how much weight should my dog be putting on the operated leg right now?

The Arthrex TPLO weight chart provides a structured, week-by-week answer to that question, giving both surgeons and owners a shared reference point for tracking recovery progress.

Quick answer: The Arthrex TPLO weight chart tracks the percentage of body weight a dog bears on the operated leg at each recovery stage — from 0 to 10% in the first weeks to 100% by 8 to 12 weeks post-surgery.

Key takeaways

The weight chart tracks weight-bearing percentage at each stage, from 0 to 10% in weeks 1 to 2 to 100% by weeks 8 to 12
It is a rehabilitation monitoring tool, not a surgical planning tool: the rotation chart governs intraoperative correction; this tracks recovery
Progression must be gradual: advancing too fast risks implant failure; too slow leads to atrophy and stiffness
The chart integrates with clinical examination: 8-week radiographs, gait assessment, and muscle mass evaluation are considered alongside chart milestones
Individual dogs vary: the chart provides population-level benchmarks; your surgeon's instructions take precedence
The chart is used alongside the plate size and rotation charts: together they form the Arthrex TPLO system framework

What the weight chart is and what it is not

The Arthrex TPLO weight chart is a post-operative rehabilitation tool.

It shows recommended weight-bearing percentages at specific time points after surgery a reference guide that helps veterinarians, rehabilitation therapists, and owners track whether a dog's recovery is progressing appropriately.

It is not the same as the rotation chart (which guides intraoperative tibial rotation) or the plate size chart (which guides implant selection before surgery).

These three charts together form the Arthrex TPLO planning and monitoring system.

For the rotation chart guide, see Arthrex TPLO rotation chart explained. For the plate overview, see Arthrex TPLO plate overview and use.

Understanding the weight-bearing percentages

The chart uses percentage of body weight as its unit of measurement.

This is a more useful measure than time alone because it relates directly to the mechanical load placed on the healing osteotomy and implant.

0 to 10% weight-bearing (weeks 1 to 2): toe-touching and minimal contact only. The dog is not actively loading the leg during this phase. Bathroom trips on leash are permitted, but no sustained weight-bearing.

10 to 30% (weeks 2 to 4): the dog begins placing meaningful weight on the leg during slow leash walks. This corresponds to the short 5 to 10 minute leash walks prescribed at this stage. The healing osteotomy is starting to consolidate but is not yet ready for full load.

30 to 60% (weeks 4 to 8): progressive loading during longer walks, sit-to-stand exercises, and early rehabilitation activities. Most dogs are visibly improving in gait symmetry during this phase.

60 to 100% (weeks 8 to 12): full weight-bearing is approached and typically achieved after the radiographic recheck at week 8 confirms adequate osteotomy healing. Activity levels increase under veterinary guidance.

How to use the chart in practice

As a clinical benchmark

Surgeons use the weight chart to assess whether a dog is progressing as expected at each recheck visit.

A dog that is well below the expected weight-bearing percentage for their stage may have inadequate pain control, implant complications, or infection.

A dog exceeding the expected percentage may be at risk of mechanical overload if the bone has not yet consolidated enough to tolerate the load.

As an owner reference

Owners are not expected to measure exact weight-bearing percentages at home this requires force plate analysis or pressure-sensitive walkway equipment.

The chart provides a conceptual framework: early recovery shows only toe-touching; by weeks 4 to 6, the dog places meaningful weight during walks; by weeks 10 to 12, gait symmetry improves steadily.

What affects weight-bearing progress

Bone healing rate: younger dogs and smaller breeds typically consolidate the osteotomy faster than older or giant breed dogs.

Pain control: inadequate analgesia is the most common cause of delayed weight-bearing. A dog in pain will protect the operated leg regardless of how well the surgery went. Contact your surgeon if your dog is significantly below expected weight-bearing benchmarks.

Muscle atrophy: dogs that enter surgery with significant muscle atrophy from prolonged pre-surgical lameness progress more slowly and benefit most from structured rehabilitation.

Body weight: heavier dogs place more absolute load on the healing osteotomy at any given percentage. This is one reason weight management is emphasized throughout the TPLO recovery period.

Rehabilitation: dogs receiving structured rehabilitation (PROM, sit-to-stand, hydrotherapy) consistently achieve better weight-bearing progression than those managed with rest alone.

When the chart says one thing and your dog does another

The weight chart represents population-level expectations. Individual dogs routinely deviate from the expected timeline for reasons that are often identifiable and manageable.

If your dog is significantly under-progressing: contact your surgeon to rule out infection, implant problems, or inadequate pain management before assuming slow healing.

If your dog appears to be weight-bearing well ahead of schedule: this does not mean the osteotomy is healed faster than expected.

Radiographic confirmation at week 8 is still required regardless of how the dog looks clinically. Apparent early function does not mean the bone has consolidated enough to withstand full unrestricted activity.

For the full weight-bearing recovery timeline guide, see how soon can a dog walk after TPLO surgery.

For the rotation chart that is used alongside the weight chart in the Arthrex system, see Arthrex TPLO rotation chart explained.

For the plate size chart used in conjunction with both, see TPLO plate size chart explained.

Frequently asked questions

Is the Arthrex TPLO weight chart the same as a standard recovery timeline?

Not exactly. A recovery timeline tells you what activities to do and avoid at each stage.

The weight chart specifically tracks how much weight the dog is placing on the operated leg at each stage, expressed as a percentage of body weight.

The two are related but provide different information.

Can I measure my dog's weight-bearing at home?

Not precisely. Force plate and pressure-sensitive walkway systems that measure actual weight distribution require specialist veterinary equipment.

At home, you can observe whether the dog is toe-touching, placing the foot flat, and walking with increasing symmetry which approximates the chart's progression categories without exact percentages.

What if my dog refuses to use the leg at all two weeks after TPLO?

Non-weight-bearing at two weeks is a warning sign. TPLO Austin confirms that if your pet is not bearing weight within two weeks of surgery, contact your veterinarian.

The most common causes are inadequate pain control, infection, or implant positioning concerns all of which are addressable if caught early.

Do all TPLO surgeons use the Arthrex weight chart?

No. The Arthrex system is one of the two major TPLO implant systems in the US (alongside Synthes). Surgeons using Synthes implants use Synthes-specific planning tools.

Some surgeons use individualized rehabilitation protocols rather than system-specific charts. The underlying recovery milestones are similar regardless of which chart or system is used.

What happens at the 8-week recheck in terms of weight-bearing?

At the 8-week recheck, radiographs assess osteotomy healing. If healing is adequate, the surgeon approves increased activity typically 20 to 30 minute leash walks and the beginning of return-to-normal activity.

The weight chart at this point expects the dog to be approaching or achieving 100% weight-bearing on the operated leg.

Resources

Arthrex Veterinary. TPLO Surgical Technique. arthrex.com
VCA Animal Hospitals. Tibial Plateau Leveling Osteotomy (TPLO) in Dogs. vcahospitals.com
TPLO Austin. Step 6: TPLO Surgery Recovery. tploaustin.com
ACVS. Cranial Cruciate Ligament Disease. acvs.org

Read Blog Post

TPLO

5 min read

Patellar Tendonitis After TPLO Surgery in Dogs

Learn about patellar tendonitis after TPLO surgery in dogs, including causes, symptoms, treatment, and recovery tips for pet owners.

Patellar tendonitis more precisely called patellar desmopathy or patellar ligament desmitis in veterinary literature is a recognized complication of TPLO surgery. It is also one of the most under-discussed.

Research published in PMC shows radiographic evidence of patellar ligament thickening in 93% of dogs at 4 weeks after TPLO, though most cases are asymptomatic.

Understanding what this condition is, when it becomes a clinical problem, and how it is treated helps owners navigate one of the more commonly missed post-TPLO findings.

Quick answer: Patellar desmitis after TPLO is inflammation and thickening of the patellar ligament. Radiographic thickening occurs in 93% of TPLO dogs at 4 weeks but is usually asymptomatic. Clinically significant cases cause pain and increased lameness. Most are self-limiting; shock wave therapy accelerates resolution.

Key takeaways

Radiographic patellar ligament thickening occurs in 93% of TPLO dogs at 4 weeks: most are asymptomatic and self-limiting
Clinically significant patellar desmitis causes pain, swelling, and increased lameness beyond expected post-op discomfort
TPLO changes stifle biomechanics and increases patellar tendon load: this explains why desmitis occurs more after TPLO
Shock wave therapy (SWT) significantly reduced patellar ligament thickness at weeks 6 and 8 in a 2012 clinical trial
Most cases are self-limiting: rest and NSAIDs resolve the majority of clinically significant cases within weeks to months
Excessive post-operative activity is a modifiable risk factor: strict restriction in the first 8 weeks reduces desmitis risk

What is patellar desmitis after TPLO?

The patellar ligament runs from the kneecap (patella) to the tibial tuberosity — the bony bump just below the knee on the front of the tibia.

It is a critical structure for leg extension and stifle stability.

After TPLO surgery, the biomechanics of the stifle change fundamentally. The tibial plateau is rotated and held at a new angle.

This changes how forces are distributed around the knee, including the forces that pass through the patellar ligament.

The patellar ligament experiences altered tension and loading patterns after TPLO that it did not experience before surgery.

PMC research (2025 retrospective study) confirms desmopathy typically develops within 2.5 months after surgery, affecting the distal portion, and that TPLO causes more ligament thickening than other CCL repair methods.

A separate PMC study using elastosonography confirmed that patellar tendon tendinopathy can be easily detected clinically but that the exact damage evaluation is challenging without ultrasound or advanced imaging.

Why does TPLO cause patellar tendonitis?

Several mechanisms contribute:

Altered stifle biomechanics: TPLO changes the angle of the tibial plateau and the position of the tibial tuberosity relative to the femur. This alters patellar tendon geometry and tension during weight-bearing.

Surgical trauma: retraction and manipulation of soft tissues around the tibial tuberosity during the procedure causes local inflammatory changes that can involve the patellar tendon.

Intraoperative tension increase: rotating the proximal tibial segment may change the tension in the patellar tendon directly, especially during the initial healing phase.

Excessive postoperative exercise: Clinicians Brief's treatment review notes that excessive postoperative exercise is a commonly proposed contributing factor. Dogs allowed too much activity too early are more likely to develop clinically significant desmitis.

How common is patellar desmitis after TPLO?

Radiographic evidence of patellar ligament thickening at 4 weeks post-TPLO is reported in 93% of dogs in clinical studies.

The vast majority of these dogs have no clinical signs the radiographic finding does not translate into a symptomatic problem for most patients.

Clinically significant desmitis where the dog shows pain and lameness attributable to the patellar ligament specifically is less common but well-recognized by veterinary orthopedic surgeons.

Laguna Hills Animal Hospital notes that patellar tendinosis is relatively benign in most cases and improves with rest and medication.

Signs of clinically significant patellar desmitis

Unlike the asymptomatic radiographic finding, clinical patellar desmitis produces:

Pain on direct palpation of the patellar ligament (between the kneecap and tibial tuberosity)
Swelling or thickening directly over the ligament
Lameness that is worse than expected for the dog's recovery stage
Reluctance to fully extend the stifle during walking or exercise
Stiffness after rest that improves briefly with movement

These signs typically appear in the first 6 to 10 weeks after TPLO.

Diagnosis

A veterinarian diagnoses patellar desmitis through:

Physical examination: palpation of the patellar ligament for thickening, pain response, and heat. A dog with significant desmitis will react to direct pressure on the ligament.

Radiographs: thickening of the soft tissue shadow over the patellar ligament on a lateral stifle projection. This is often identified at the routine 4 to 6 week post-TPLO radiographic recheck.

Ultrasound: provides direct visualization of the ligament, showing thickening, fiber disruption, and periligamentous edema. Ultrasound is more sensitive than radiographs and is the preferred modality for detailed assessment.

Treatment

Rest and activity restriction

The foundation of treatment for most cases. Reducing the mechanical load on the patellar ligament allows the inflammatory process to resolve.

Strict activity restriction should already be in place for post-TPLO recovery patellar desmitis is a reason to enforce it rigorously.

NSAIDs

Anti-inflammatory medication reduces pain and local inflammation. Meloxicam or carprofen at appropriate veterinary doses is the standard pharmaceutical approach for most dogs with symptomatic desmitis.

Shock wave therapy (SWT)

Clinicians Brief reviewed a trial of 30 large-breed TPLO dogs: SWT at weeks 4 and 6 significantly reduced patellar ligament thickness on radiographs at weeks 6 and 8 vs. controls.

SWT should be considered for dogs with clinically significant patellar desmitis.

Laser therapy

Low-level laser therapy (photobiomodulation) may reduce local inflammation and support tissue healing, though evidence specific to patellar desmitis after TPLO is limited compared to the SWT evidence base.

For the complete TPLO complications reference, see 15 common complications after TPLO surgery in dogs. For the incision infection guide, see TPLO incision infection symptoms and prevention.

For the general lameness guide that helps distinguish desmitis from other causes of post-TPLO lameness, see lameness after TPLO surgery in dogs.

For the TPLO failure rate context, see TPLO failure rate in dogs explained.

Frequently asked questions

Is patellar tendonitis after TPLO serious?

In most dogs, no. The radiographic finding is near-universal but typically asymptomatic and self-limiting.

Clinically significant desmitis causes pain and increased lameness but usually resolves with rest, NSAIDs, and sometimes shock wave therapy. It rarely causes permanent dysfunction.

How do I know if my dog has patellar tendonitis vs. normal post-TPLO soreness?

The key distinguishing feature is pain specifically on palpation of the patellar ligament the structure running from the kneecap to the bump just below the knee.

Normal post-TPLO soreness is diffuse and improves steadily. Patellar desmitis produces focal pain at this location, often with visible swelling over the ligament.

Can patellar desmitis be prevented?

Strict activity restriction in the first 8 weeks post-TPLO is the most effective preventive measure, since excessive early activity is a recognized contributing factor.

It cannot always be prevented altered biomechanics from the surgery itself play a role regardless of activity level but minimizing mechanical load during the healing phase reduces severity.

Does patellar tendonitis require a second surgery?

Almost never. The vast majority of cases resolve with conservative management. Shock wave therapy is effective in cases that need more active treatment.

Surgical intervention for patellar desmitis after TPLO is extremely rare.

Will this affect my dog's long-term outcome after TPLO?

For most dogs, no. Clinically significant patellar desmitis is typically a temporary complication that resolves during the recovery period.

Long-term stifle function in dogs that develop and recover from patellar desmitis is generally comparable to dogs that do not develop the condition.

Resources

PMC. Retrospective Study on Patellar Desmopathy Following Surgical Resolution of CCL Rupture in 28 Dogs. ncbi.nlm.nih.gov
PMC. Radiographic, Ultrasonographic and Shear Elastosonographic Changes in Patellar Ligament in Dogs Undergoing TPLO. ncbi.nlm.nih.gov
Clinicians Brief. Treating Patellar Ligament Desmitis. cliniciansbrief.com
Laguna Hills Animal Hospital. TPLO Surgery Complications. lhah.com
ACVS. Cranial Cruciate Ligament Disease. acvs.org

Read Blog Post

TPLO

5 min read

Can a Dog Re-Tear ACL After TPLO Surgery?

Learn if a dog can re-tear the ACL after TPLO surgery, signs to watch for, and how to prevent re-injury effectively.

TPLO surgery does not repair or replace the torn CCL it changes the biomechanics of the stifle so the CCL is no longer needed. This means there is no ligament to re-tear.

The question most owners are really asking is: can the operated knee fail again? The answer requires separating the different ways a TPLO can stop working well.

Quick answer: Dogs cannot re-tear the CCL after TPLO because TPLO makes the ligament unnecessary. Late meniscal tears occur in 5% of dogs. Contralateral rupture is the biggest risk: 22 to 54% rupture the other knee within 6 to 17 months.

Key takeaways

Dogs cannot re-tear the CCL after TPLO: TPLO changes joint geometry so the CCL is unnecessary; no ligament remains to re-tear
Late meniscal tears affect approximately 5% of dogs with intact meniscus at TPLO; they are the most common cause of sudden lameness regression
30 to 40% of dogs have concurrent meniscal injury treated at TPLO surgery; this is not the same as a late post-operative tear
Contralateral CCL rupture is the biggest re-injury risk: 22 to 54% of dogs rupture the other knee within 6 to 17 months
Sudden non-weight-bearing after previous progress is the main warning sign for any post-TPLO complication it requires prompt veterinary evaluation
Implant failure is a hardware problem, not a CCL re-tear; it presents with sudden lameness and is diagnosed on radiographs

Why dogs cannot re-tear the CCL after TPLO

TPLO surgery works by rotating the tibial plateau to approximately 5 degrees. At this angle, the stifle is mechanically stable during weight-bearing without the cranial cruciate ligament.

The torn CCL is not repaired, reconstructed, or replaced.

Because no ligament substitute is in place, there is nothing to re-tear.

The joint stability provided by TPLO is structural it comes from the new bone geometry, not from any biological or synthetic material that could fail.

This is different from human ACL surgery, which typically involves a ligament graft (autograft or allograft) that can be re-torn.

Dog owners familiar with human ACL surgery often incorrectly assume the same risk applies after TPLO.

What can go wrong with the operated knee after TPLO

Late meniscal tears

This is the most important cause of sudden lameness regression after successful TPLO recovery.

TPLO Austin confirms: approximately 5% of dogs with an intact meniscus at the time of surgery will develop a meniscal tear at some point in the future.

When this occurs, patients may become acutely lame. In some cases, a second surgery is needed to remove the torn portion of the meniscus.

Laguna Hills Animal Hospital notes that dogs with a meniscal tear frequently exhibit a meniscal click an audible clicking noise as one of the telltale signs of injury.

Signs of a late meniscal tear:

Sudden regression to significant lameness after the dog was progressing well
Clicking or clunking sound from the knee during movement
Swelling of the stifle joint
Reluctance to bear full weight on a leg that was previously well-recovered

Vetplayas confirms that early identification and intervention for meniscal tears after TPLO are crucial to prevent further damage, chronic pain, and decreased joint function.

Tibial tuberosity fracture

This is a rare but serious complication occurring in 1 to 9% of TPLO cases (Laguna Hills Animal Hospital).

The tibial tuberosity the bony prominence where the patellar tendon inserts can fracture if placed under excessive stress, particularly in large, active dogs during the early healing phase.

Sudden severe lameness in the first weeks after surgery is the presentation. Radiographs confirm the diagnosis.

Implant failure (plate or screw problems)

If the TPLO plate bends, breaks, or screws loosen, the osteotomy site loses support and the bone may shift. This produces sudden or progressive lameness and is confirmed on radiographs.

Premature return to activity, obesity, and overexertion during the healing phase are the main risk factors for implant failure. For the full guide, see TPLO implant failure signs and causes.

The most important re-injury risk: the other knee

The operated knee rarely fails after successful TPLO recovery. The far greater risk is the other knee.

PMC (NCBi 2014) confirms that among dogs with unilateral CCL rupture, a large proportion will develop contralateral CCL rupture within 12 to 24 months.

The risk is 22 to 54% at 6 to 17 months of initial diagnosis.

This is because both CCLs are affected by the same systemic risk factors: genetics, body weight, conformation, and hormonal environment.

The degeneration that caused one CCL to fail is almost certainly affecting the other.

Weight management is the most impactful owner action for reducing the risk of contralateral rupture. Maintaining a lean body condition score reduces mechanical load on both stifle joints simultaneously.

Signs that the operated knee has a new problem

Contact your veterinarian if you notice:

Sudden regression to non-weight-bearing or severe lameness after the dog was progressing well
A new clicking or popping sound from the operated knee
New swelling or heat at the operated knee months after surgery
Progressive rather than improving lameness between weeks 8 and 16

Contact your veterinarian about the other knee if you notice:

New hind limb lameness on the opposite side
Bilateral stiffness, especially in the morning
Sitting with one leg extended to the side (the opposite leg from the TPLO)

For the TPLO failure rate context, see TPLO failure rate in dogs explained. For the meniscal complication guide, see dog meniscus tear after TPLO: symptoms and solutions.

For the full complications reference, see 15 common complications after TPLO surgery in dogs. For signs of lameness and their causes, see lameness after TPLO surgery in dogs.

For guidance on return-to-activity, see when can dogs resume agility training post-TPLO?.

Frequently asked questions

My dog had TPLO and is suddenly limping badly again. Did they re-tear their ACL?

Not in the literal sense TPLO does not leave a CCL to re-tear.

Sudden regression after successful initial recovery is most likely a late meniscal tear, though implant complications, infection, or patellar issues can also present this way.

Any sudden regression to severe lameness after TPLO warrants same-day or next-day veterinary evaluation.

How can I tell if it's a meniscal tear vs. a plate problem?

A meniscal click or clunk during movement is more characteristic of meniscal injury. Implant failure is more likely to show subtle progressive changes visible on radiographs.

A vet cannot reliably distinguish them on clinical examination alone radiographs and often arthroscopy are needed.

Can TPLO surgery fail entirely?

Complete failure where the joint reverts to pre-surgical instability is uncommon. Partial complications (late meniscal tear, infection, implant issues) are more typical. The overall reoperation rate for TPLO complications is below 10%.

Most dogs that have successful initial recovery maintain good long-term function.

How do I reduce my dog's risk of a late meniscal tear after TPLO?

Strict activity restriction for the full 8 to 12 weeks minimizes abnormal forces on the healing meniscus. Maintaining healthy body weight reduces meniscal loading throughout the dog's life.

The surgeon assesses the meniscus at TPLO if it was already damaged and removed, a late tear in that knee is no longer possible.

Should I worry about my dog's other knee after TPLO?

Yes the contralateral CCL rupture risk of 22 to 54% within 6 to 17 months is substantial.

Weight management, consistent controlled exercise, and watching for new lameness on the opposite side are the appropriate responses.

Early diagnosis and surgery on the second knee (when it ruptures) produce the same good outcomes as the first.

Resources

TPLO Austin. Step 6: TPLO Surgery Recovery. tploaustin.com
Laguna Hills Animal Hospital. TPLO Surgery Complications. lhah.com
Vetplayas. Dog Meniscus Tear After TPLO: Understanding and Managing the Complication. vetplayas.com
PMC. Radiographic Risk Factors for Contralateral Rupture in Dogs with Unilateral CCL Rupture. ncbi.nlm.nih.gov
ACVS. Cranial Cruciate Ligament Disease. acvs.org

Read Blog Post

TPLO

5 min read

TPLO Range of Motion Exercises for Dogs

Learn effective TPLO range of motion exercises to help your dog recover safely and regain mobility after surgery.

Range of motion (ROM) exercises are one of the earliest and most consistently prescribed rehabilitation interventions after TPLO surgery.

They prevent joint stiffness, reduce scar tissue adhesion, and maintain the joint mobility that ultimately determines how well the dog walks and bears weight long-term.

A key research finding from a study of 412 TPLO patients: loss of stifle extension greater than 10 degrees was associated with significantly greater long-term lameness.

Quick answer: TPLO ROM exercises involve gently flexing and extending the stifle for 10 repetitions, 2 to 3 times daily, beginning 2 to 5 days post-surgery. Extension is critical: loss of more than 10 degrees is strongly linked to long-term lameness.

Key takeaways

ROM exercises begin at 2 to 5 days post-TPLO: early initiation prevents scar tissue formation that progressively limits joint mobility
Extension is more critical than flexion: loss of more than 10 degrees is strongly associated with increased long-term lameness
Normal stifle ROM: extension 158 to 162 degrees, flexion 41 to 45 degrees; loss of more than 10 degrees warrants intervention
Hydrotherapy significantly improves stifle ROM: 122 vs 105 degrees at week 12 in a randomized controlled trial
Goniometry is the clinical tool: a goniometer measures joint angles and tracks ROM improvement at each rehabilitation assessment
10 repetitions, 2 to 3 times daily is the standard passive ROM protocol; stop if the dog vocalizes or tenses

What range of motion means after TPLO

Range of motion is the arc through which a joint can move from maximum flexion (the most bent position) to maximum extension (the most straight position).

In the stifle (knee), this is measured in degrees using a goniometer, a protractor-like device placed over the joint.

After TPLO surgery, the stifle is swollen, painful, and surrounded by muscles that have contracted to protect the injury.

Without regular movement, periarticular muscles tighten and scar tissue forms between tissue planes.

Normal stifle ROM values in dogs

Understanding what "normal" looks like helps set realistic goals for rehabilitation:

Extension: approximately 158 to 162 degrees (near full straightening of the joint)Flexion: approximately 41 to 45 degrees (the most bent position)

Loss of extension or flexion greater than 10 degrees from these reference values is clinically significant and associated with increased lameness (Veterian Key, 412-dog TPLO study).

Extension loss is worse than flexion loss: it is less tolerable, less amenable to rehabilitation, and more strongly correlated with osteoarthritis.

TPLO ROM exercise technique

Passive ROM (PROM) weeks 1 to 6

Passive ROM means you move the joint; the dog's muscles are relaxed.

Setup: dog lying on their side, operated leg facing up. Support the leg above and below the stifle with both hands.

Repetitions: 10 per session, 2 to 3 sessions daily.

After: apply a cold pack for 5 to 10 minutes to reduce post-exercise inflammation.

This is identical to the PROM technique described in PROM exercises for dogs after TPLO surgery.

Active-assisted ROM weeks 4 to 8

As the dog begins bearing weight, active-assisted ROM incorporates the dog's own muscle activation:

Warm pack before exercise: from day 5 onward, apply a warm pack for 5 minutes before ROM sessions to relax the periarticular muscles and improve the range achieved.

Facilitated ROM weeks 6 to 12

As strength and confidence improve, exercises that challenge and expand ROM are introduced:

Incline walking: walking up a gentle slope increases hindlimb extension demand; walking down increases flexion demand. Progress from 1 to 3 minutes per session at weeks 6 to 8 onward.

The role of hydrotherapy in ROM recovery

This is a clinically and statistically significant difference.

The underwater treadmill protocol involved twice-weekly sessions from week 3 onward, water at the level of the greater trochanter, 15 to 30 minute sessions.

Water buoyancy reduces joint load while the resistance and natural gait pattern in water challenge ROM more effectively than many land exercises at the same stage.

PMC (UWTM pilot study, 50 dogs): after 10 sessions, significant ROM improvement occurred in all joints including the stifle.

When to be concerned about ROM

Contact your veterinarian or rehabilitation therapist if:

The dog resists or vocalizes during ROM exercises that were previously comfortable
You notice a hard end-point to ROM (hard stop rather than soft resistance) suggesting joint capsule contracture
ROM appears to be decreasing rather than improving at the 4- or 8-week recheck
The dog is significantly lame and the stifle will not flex or extend near normal range

For the full PROM technique guide, see PROM exercises for dogs after TPLO surgery. For the complete rehab program that ROM fits into, see TPLO rehab exercises for dogs.

For the physical therapy guide, see when to start physical therapy after TPLO surgery. For the recovery exercises guide, see TPLO recovery exercises for dogs.

Frequently asked questions

How do I know if I'm achieving enough range of motion during home exercises?

Normal stifle flexion is approximately 41 to 45 degrees; normal extension is approximately 158 to 162 degrees.

If you are performing PROM correctly, you should feel gentle resistance at the end of each range not a hard stop, not complete looseness.

A rehabilitation practitioner can demonstrate the correct technique and measure your dog's current ROM with a goniometer at their first session.

My dog gets stiff after rest. Is this related to ROM?

Yes. Post-rest stiffness is one of the earliest signs of reduced ROM following TPLO. The joint has developed some adhesion and scar tissue that resolves partially with movement.

This is a signal to increase the frequency of ROM sessions and to ensure warm-up before walks.

If stiffness does not improve with ROM exercises over 1 to 2 weeks, contact your vet.

How long should ROM exercises continue after TPLO?

Passive ROM (PROM) is typically discontinued around weeks 6 to 8 when the dog achieves near-normal active ROM.

Can I use a goniometer at home to track progress?

Accurate home tracking provides useful objective data for your veterinarian alongside clinical assessments.

Does every TPLO dog need formal ROM therapy?

Dogs that enter surgery with significant pre-surgical muscle atrophy or stiffness, or those not progressing at expected milestones, particularly benefit from formal rehabilitation.

Resources

Veterian Key. Range-of-Motion and Stretching Exercises. veteriankey.com
ScienceDirect. How Does CCL Rupture Treatment Affect Range of Motion in Dogs? sciencedirect.com
PMC. Pilot Study on the Effects of UWTM on Canine Joint Range of Motion. ncbi.nlm.nih.gov
TPLO Info. Rehab for Dogs After TPLO Surgery. tploinfo.com
WM Referrals. Post-Operative Rehabilitation After TPLO. wm-referrals.com

Read Blog Post

Get Your
‍Free Poster!

We will work on your request shortly.

Oops! Something went wrong while submitting the form.

What’s your role in animal care?

Tell us who you are so we can guide you to the most relevant information.

Pet Owner

Veterinary Professional