DeAngelis surgery also called lateral suture, extracapsular repair, or ELSS (extracapsular lateral suture stabilization) is one of the oldest and most widely performed CCL repair techniques.

TPLO is the most commonly recommended procedure by the ACVS for dogs over 60 lbs.

Decades of research strongly favor TPLO for larger, more active dogs while supporting extracapsular repair as a cost-effective option for smaller dogs.

Quick answer: TPLO produces superior outcomes in medium and large breed dogs: better limb loading at 8 weeks, higher 1-year function, and slower arthritis progression. DeAngelis surgery is effective for small dogs under 15 to 20 lbs and costs $800 to $1,500 vs $3,000 to $6,000 for TPLO.

Key takeaways

• TPLO produces superior outcomes at 8 weeks and 1 year in size-matched studies: more symmetric loading, higher vertical force, higher owner satisfaction
• DeAngelis surgery is effective in small dogs under 15 to 20 lbs: success rates above 90% reported; significantly worse in larger dogs
• Extracapsular repair relies on periarticular fibrosis for stability; the suture eventually stretches or fails in larger dogs
• DeAngelis surgery costs significantly less: $800 to $1,500 vs $3,000 to $6,000 for TPLO
• Arthritis progression is faster after extracapsular repair than TPLO in multiple studies; TPLO slows OA more effectively
• 10 to 20% of extracapsular repair dogs will require additional treatment for lameness during their lifetime per Today's Veterinary Practice

How each procedure works

DeAngelis surgery (lateral suture / extracapsular repair)

DeAngelis surgery uses a heavy monofilament nylon suture (or, in the TightRope variation, a fiber-tape through bone tunnels) placed outside the joint to mimic the function of the torn CCL.

The suture runs from the lateral fabella behind the femur around to the tibial crest, restraining the cranial drawer movement that occurs with CCL loss.

The suture is not a permanent replacement.

DVM360 confirms that extracapsular stabilization relies on periarticular fibrosis for long-term stability the suture eventually stretches or fails, and joint stability depends on scar tissue formed around the joint during recovery.

DeAngelis surgery does not require bone cutting, specialized equipment, or the steep learning curve associated with TPLO. It is technically accessible to general practice surgeons with appropriate training.

TPLO (Tibial Plateau Leveling Osteotomy)

TPLO addresses CCL rupture by changing joint geometry rotating the tibial plateau so the stifle is mechanically stable without any functioning CCL.

The stability provided by TPLO is bone-based and does not depend on scar tissue or suture integrity over time.

TPLO requires specialized equipment, a radiolucent table, intraoperative radiographs, and surgeon training in the procedure. It is primarily performed at specialty hospitals and by board-certified orthopedic surgeons.

What the clinical evidence shows

Short-term outcomes

DVM360's evidence review found TPLO dogs bear more weight sooner; extracapsular repair dogs hold the leg up for 1 to 2 weeks.

A force plate gait study (ECR n=23, TPLO n=15) found more symmetric limb loading at 8 weeks in TPLO patients compared to extracapsular repair patients at both walk and trot.

Long-term outcomes

Today's Veterinary Practice's evidence-based review reports:

• A randomized blinded clinical trial of 80 dogs found TPLO resulted in higher peak vertical force and higher owner satisfaction at 1 year post-surgery compared to lateral fabellar suture stabilization
• A more recent study showed TPLO outcomes were always better than lateral suture outcomes at any time point up to 1 year

DVM360 notes one early study found no difference at 2 years, but more recent studies consistently show TPLO outperforming extracapsular repair.

Arthritis progression

Today's Veterinary Practice confirms that extracapsular stabilization may result in increased progression of radiographic osteoarthritis compared to TPLO.

Restoring joint mechanics (TPLO) slows cartilage degradation more effectively than temporary stabilization with subsequent fibrosis (extracapsular repair).

Long-term failure

Today's Veterinary Practice reports that 10 to 20% of dogs with extracapsular stabilization will require treatment or reoperation for lameness during their lifetimes, sometimes years after original surgery.

This rate is higher than the expected rate of reoperation-requiring complications after TPLO.

Head-to-head comparison

Which dogs are best suited to each?

DeAngelis surgery is appropriate for:

• Small dogs under 15 to 20 lbs with CCL rupture
• Dogs with significant health conditions making a longer anesthetic or more invasive procedure higher risk
• Cases where cost is the primary determining factor
• Older, less active dogs with lower functional demands

TPLO is recommended for:

• Dogs over 30 lbs, especially active and large breeds
• Dogs where long-term joint function and minimal OA progression are the goals
• Working dogs, sport dogs, or highly active pets
• Dogs with steep tibial plateau angles that make extracapsular repair less reliable

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

For the lateral suture detailed comparison, see lateral suture vs TPLO: what's the difference?.

Frequently asked questions

Is DeAngelis surgery as good as TPLO?

For small dogs under 15 to 20 lbs, DeAngelis surgery can be as effective as TPLO.

For medium and large breed dogs, the evidence clearly favors TPLO: better short-term function, better 1-year outcomes, slower arthritis progression, and lower long-term reoperation rates.

How much less does DeAngelis surgery cost than TPLO?

Typically $2,000 to $4,500 less per leg. DeAngelis surgery costs approximately $800 to $1,500 at general practices vs $3,000 to $6,000 for TPLO at specialist centres.

For bilateral cases (both knees), the cost difference is doubled.

Does DeAngelis surgery fail more often than TPLO?

In large dogs, yes. The suture stretches and fails in larger, more active patients because the periarticular fibrosis cannot compensate for the higher joint forces.

Today's Veterinary Practice estimates 10 to 20% of extracapsular repair dogs will need further treatment for lameness during their lifetime.

Can my large dog have DeAngelis surgery instead of TPLO?

Technically yes, but the evidence does not support it as the primary recommendation for dogs over 30 lbs.

DVM360 confirms it is possible that larger dogs treated with lateral suture technique may have significantly worse outcomes than those treated with TPLO.

If DeAngelis surgery fails, can TPLO be done afterward?

Yes. TPLO is a standard revision option when extracapsular repair fails or when the dog develops ongoing instability and lameness.

Discuss this with a board-certified orthopedic surgeon if your dog's original repair has not produced adequate results.

Resources

• DVM360. Cranial Cruciate Ligament Repair: One Size Does NOT Fit All. dvm360.com
• Today's Veterinary Practice. Canine Cranial Cruciate Disease: An Evidence-Based Look at Current Treatment Modalities. todaysveterinarypractice.com
• DVM360. Journal Scan: Ruptured CCL Surgery: TPLO vs Extracapsular Repair. dvm360.com
• Walkerville Vet. Cruciate Surgery: TPLO, TTA, MMP, DeAngelis. walkervillevet.com.au
• ACVS. Cranial Cruciate Ligament Disease. acvs.org

Rehabilitation after TPLO surgery is not optional it is one of the primary determinants of long-term outcome.

Dogs that complete a structured rehabilitation program return to function faster, develop better muscle mass, and have lower rates of long-term lameness than those managed with rest alone.

The program follows a predictable progression from passive exercises in the first days to full activity at 4 to 6 months.

Quick answer: TPLO rehab begins with PROM and cold packing in the first days, progresses to controlled leash walks and sit-to-stand from weeks 2 to 6, then adds hydrotherapy and balance work from weeks 6 to 12. Full activity returns at 4 to 6 months after surgeon approval and radiographic confirmation.

Key takeaways

• Rehabilitation follows four phases: passive exercises, active weight-bearing, strength building, and return to activity over 3 to 6 months
• Sit-to-stand is the most important active exercise: targets quadriceps and hamstrings; begins once partial weight-bearing is established
• Hydrotherapy begins once the incision is closed (3 to 4 weeks post-surgery): up to 90% joint load reduction
• Balance work begins at weeks 4 to 6: weight shifting, single leg lifts, and balance pads correct gait patterns
• All exercise increases require surgeon approval: do not advance without veterinary guidance, especially before the 8-week radiographic recheck
• Cavalletti poles and incline walks begin at weeks 8 to 12 to challenge muscle activation and range of motion

Why rehabilitation matters after TPLO

TPLO surgery stabilizes the stifle, but surgery alone does not rebuild the muscle mass lost to months of pre-surgical lameness and the early post-operative period. Without rehabilitation, dogs develop:

• Persistent muscle atrophy and asymmetric hindlimb development
• Joint stiffness from scar tissue and reduced range of motion
• Altered gait patterns that stress the contralateral knee
• Slower overall recovery and increased risk of re-injury

Veterinary Partner (VIN) divides post-TPLO rehab into three phases.

Phase 1 manages pain while encouraging limb use (days 1 to 14).

Phase 2 restores musculoskeletal function (weeks 2 to 8). Phase 3 builds core strength and returns to activity (weeks 8 to 16+).

Phase 1: Immediate post-operative (days 1 to 14)

Passive range of motion (PROM)

Begin PROM at 2 to 5 days post-surgery. Dog on their side, operated leg up gently flex and extend the stifle in a slow bicycle motion. Ten repetitions, 3 times daily.

Full guide: PROM exercises for dogs after TPLO surgery.

Cold packing

Apply ice or a cold pack wrapped in a thin towel to the surgical site for 10 to 15 minutes after each PROM session.

Repeat 3 times daily for at least the first 5 days. Cold packing reduces local inflammation and post-exercise swelling.

Short controlled leash walks

5 to 10 minutes, 2 to 3 times daily from day 10 to 14 onward (after suture removal). Slow pace on a flat, even surface.

Leash only no off-leash time at any stage during restricted recovery.

Massage

Gentle massage of the muscles above and below the stifle joint the quadriceps, hamstrings, and calf muscles improves local circulation and reduces muscle spasm.

Use palm pressure in a circular motion, not surface stroking.

Phase 2: Active weight-bearing (weeks 2 to 8)

Sit-to-stand exercises

Sit-to-stand is the most important active strengthening exercise in TPLO rehabilitation. Ask your dog to sit, then stand, repeatedly.

TPLO Info confirms that sit-to-stand action helps with range of motion in the hindlimb joints and activates the muscles that support the stifle.

Protocol:

• Begin with 5 repetitions, 2 times daily at week 2 to 3
• Progress to 10 to 20 repetitions, 2 to 3 times daily as strength improves
• Ensure the dog sits squarely, not off to one side
• Use a wall on the operated leg's side if needed to prevent kicking the leg out

Progressive leash walk duration

Week 3 to 4: 10 to 15 minutes, 3 times dailyWeek 5 to 6: 15 to 20 minutes, 3 times dailyWeek 7 to 8: 20 to 30 minutes, 2 to 3 times daily

All walks on leash. No running, jumping, or off-leash time.

Warm packs before exercise

After the first 5 post-operative days, apply warm compresses for 5 minutes before each exercise session.

Warmth relaxes muscles and improves local circulation before PROM and active exercises.

Phase 3: Strength building (weeks 6 to 12)

Hydrotherapy (underwater treadmill)

Begin hydrotherapy once the incision is fully healed typically 3 to 4 weeks post-surgery. Water buoyancy reduces joint load by up to 90% while allowing the muscles to work against water resistance.

WM Referrals' post-TPLO physiotherapy guide recommends starting hydrotherapy around week 6, with sessions of 15 to 30 minutes at progressive durations as strength improves.

For the full hydrotherapy and laser therapy guide, see laser therapy for dogs after TPLO surgery.

Balance and proprioception exercises

Begin from weeks 4 to 6 once partial weight-bearing is reliable:

Weight shifting: with the dog standing, gently nudge the hips from side to side to encourage weight transfer between limbs. TPLO Info recommends this once the dog is consistently bearing weight on the surgical limb, typically 3 to 4 weeks post-surgery.

Single leg lifts (contralateral leg): while the dog stands, lift one front or non-surgical hind leg for 10 to 15 seconds. This forces weight onto the operated limb and activates stabilizing muscles. Do not lift the operated leg.

Balance pad or wobble board: progress to standing on a soft or unstable surface from weeks 6 to 8. Begin with seconds of contact and build to 30+ seconds as confidence and strength improve.

Cavalletti poles

Slow stepping over 4 to 5 poles laid flat on the ground at shoulder-width spacing.

Introduced at weeks 6 to 8, this forces controlled hip and stifle flexion, improving range of motion and coordination. Two to four passes per session, 2 to 3 sessions daily.

Incline walking

Gentle uphill walking increases hindlimb muscle load without high joint impact.

WM Referrals recommends slow walks up and down inclines from weeks 6 to 8, starting at 1 to 3 minutes and progressing as tolerated.

Phase 4: Return to full activity (months 3 to 6)

After the 8 to 12 week radiographic recheck confirms adequate osteotomy healing, the surgeon approves progressive return to normal activity.

Madison Veterinary Specialists' rehabilitation guide notes that trotting on leash is allowed after the dog is comfortable with extended walks of 1 hour or more and sit-to-stand exercises.

Activity milestones:

• Month 3: 30 to 45 minute leash walks, light trot on leash
• Month 4: free trotting on leash, gentle play
• Month 5 to 6: off-leash play approved by surgeon, return to normal activity

High-impact activities jumping, ball chasing, agility are reintroduced last, typically at 5 to 6 months, after a final clinical assessment.

For the range of motion exercises covered in this program, see TPLO range of motion exercises for dogs. For the recovery exercises at each stage, see TPLO recovery exercises for dogs.

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

For the full recovery tips overview, see 10 essential TPLO recovery tips for pet owners.

Frequently asked questions

When should TPLO rehabilitation begin?

Rehabilitation begins within days of surgery. PROM starts at 2 to 5 days post-surgery. Cold packing begins on day 1.

Short controlled leash walks begin at 10 to 14 days after suture removal. Formal hydrotherapy and balance exercises begin at 3 to 6 weeks depending on healing.

Can I do all the rehab exercises at home?

Many exercises PROM, sit-to-stand, controlled leash walks, balance nudging, cold and warm packing can be done at home. Hydrotherapy requires a specialist facility.

Balance boards and cavalletti poles require some equipment investment but are achievable at home.

A formal rehabilitation assessment at a certified canine rehab centre is strongly recommended for at least the first few sessions.

How do I know if I'm pushing too hard?

Signs of over-exercise: increased swelling or heat at the surgical site, markedly worse lameness the next day, or the dog refusing to perform the exercise or vocalizing during it.

Reduce exercise intensity immediately and contact your vet. Start each phase at the minimum repetitions and increase only if there is no increase in pain or swelling.

Is hydrotherapy necessary for TPLO recovery?

It is not mandatory but is highly beneficial. Studies show dogs receiving hydrotherapy alongside land-based rehabilitation recover faster and develop better muscle mass than those doing land exercises alone.

If access to a hydrotherapy facility is limited, land-based exercises performed consistently produce good outcomes.

What happens if I skip rehabilitation?

Dogs managed with rest alone after TPLO develop significant muscle atrophy, reduced range of motion, and often persistent lameness. Rehabilitation dramatically improves functional outcomes.

Even a simple home program of PROM, controlled leash walks, and sit-to-stand exercises produces substantially better results than passive rest alone.

Resources

• Veterinary Partner (VIN). Physical Rehabilitation of Dogs Following TPLO. veterinarypartner.vin.com
• TPLO Info. Rehab for Dogs After TPLO Surgery. tploinfo.com
• WM Referrals. Post-Operative Rehabilitation After TPLO. wm-referrals.com
• Madison Veterinary Specialists. TPLO Rehabilitation Home Care Instructions. mvsvets.com
• Vetplayas. TPLO Rehab Exercises: Accelerating Recovery and Restoring Mobility. vetplayas.com

TPLO produces excellent long-term outcomes for most dogs with CCL rupture.

The published evidence covers follow-up periods from 1 year to 6.8 years post-surgery and consistently shows high rates of functional recovery alongside moderate but ongoing arthritis progression.

Understanding what the data shows helps owners set realistic expectations about what TPLO achieves and what ongoing management is required.

Quick answer: Published long-term TPLO outcomes: 90 to 95% of dogs regain complete or near-complete limb function; good to excellent results in 90.4% of patients at up to 6.8 years; 93% owner satisfaction at 12 months (RCVS). Arthritis progresses moderately in all CCL-affected stifles but TPLO produces less progression than TTA.

Key takeaways

• 90 to 95% of dogs regain complete or near-complete limb function: RCVS Canine Cruciate Registry confirms this range; 93% owner satisfaction at 12 months
• Good to excellent results in 90.4% of patients up to 6.8 years post-surgery: TPLO Info cites this long-term retrospective study, one of the longest published TPLO follow-up datasets
• Arthritis progresses in all CCL-affected joints regardless of surgical technique: TPLO slows progression compared to TTA and lateral suture but does not stop it
• TPLO produces better long-term outcomes than TTA in comparative studies: OA progressed more after TTA; TPLO dogs had less pain, better walking, less morning stiffness, and better quality of life at 3+ years per the 94-dog study
• TPLO produces better owner satisfaction than lateral suture: 93% vs. 75% for lateral fabellar suture per TPLO Info; kinematic gait analysis also favored TPLO
• Meniscal management at the time of TPLO affects long-term outcomes: dogs with partial meniscectomy had higher rates of excellent long-term results and less OA progression per TPLO Info

Functional outcomes: what the data shows

At 1 year post-surgery

A 2013 comparative study of TPLO vs. TTA found TPLO patients achieved 93% restoration of limb function at 1 year, as assessed by objective force plate analysis.

This is the most frequently cited 1-year outcome figure.

RCVS Canine Cruciate Registry confirms: 90 to 95% of dogs regain complete or near-complete function; 93% of owners report satisfaction at 12 months.

At 2 years post-surgery

A PMC long-term functional outcome study found that most dogs with CCL repair -- regardless of technique -- showed improvement in limb function at 2 years compared to pre-operative status.

Objective gait analysis at 2 years showed that the operated leg approached the contralateral leg in force plate measurements.

At 3+ years post-surgery

The comparative TPLO vs. TTA study with follow-up at 3+ years provides the clearest long-term comparative data:

• OA progressed more in TTA than in TPLO dogs
• TPLO dogs scored better on the Canine Brief Pain Inventory across all domains (average pain, walking interference, morning stiffness, jumping, climbing)
• TPLO dogs scored better on the Canine Orthopedic Index (quality of life)
• The study concluded TPLO provides better long-term radiographic and functional outcome than TTA

At up to 6.8 years post-surgery

TPLO Info cites a long-term retrospective study with follow-up extending to 6.8 years: good to excellent results were obtained in 90.4% of patients at this timeframe.

This is the longest published follow-up in a TPLO outcome dataset and confirms that the 90%+ functional recovery rate is durable over years rather than only at 12 months.

Arthritis: the universal long-term consideration

All dogs with CCL disease develop progressive osteoarthritis in the affected stifle. This is true regardless of whether surgical or conservative management is chosen.

TPLO reduces the rate of arthritis progression and the severity of clinical signs compared to lateral suture stabilization and TTA, but arthritis progression continues.

TPLO Info confirms: in the long term, there was a moderate but significant progression of OA following TPLO.

SustainableVet.org confirms: while TPLO stabilizes the knee and slows down arthritis progression, it does not completely eliminate the risk; mild arthritis is expected, even in successful cases.

Managing long-term arthritis after TPLO

Weight management: every additional kilogram of body weight increases stifle joint loading. Maintaining lean body condition is the single most impactful owner-controlled variable for arthritis management.

Joint supplements: glucosamine, chondroitin, and omega-3 fatty acids (fish oil) are commonly recommended and have evidence supporting modest benefit for joint health and comfort.

Low-impact exercise: regular, controlled exercise (walking, swimming, hydrotherapy) maintains muscle mass and joint lubrication without the impact forces of running and jumping. Consistent low-impact exercise is more beneficial than sporadic high-intensity sessions.

NSAIDs for flares: carprofen, meloxicam, or other veterinary NSAIDs are used for periods of increased arthritis pain. Long-term NSAID use requires periodic monitoring of renal and hepatic function.

Rehabilitation: an ongoing physiotherapy relationship with a certified canine rehabilitation practitioner helps maintain muscle mass and joint mobility as the dog ages.

Factors that affect long-term outcomes

Age at surgery: younger dogs typically achieve better long-term function than older dogs. Older dogs heal more slowly and have a higher baseline level of arthritis-related joint change before surgery.

Body weight: heavier dogs show more arthritis progression and more persistent lameness than lighter dogs at equivalent follow-up periods.

Meniscal management: TPLO Info confirms partial meniscectomy (when a meniscal tear is present) is associated with significantly higher rates of excellent long-term results and less OA progression compared to meniscal release or leaving the meniscus intact when abnormal.

Surgical timing: earlier intervention (before severe arthritis develops) produces better long-term outcomes. Dogs treated early in the disease process have less existing joint damage at the time of surgery.

Rehabilitation compliance: dogs that complete structured rehabilitation programs and achieve good muscle mass restoration have better long-term function than those managed with restricted activity alone.

Bilateral CCL disease: TPLO Info confirms OA progresses more in dogs with bilateral stifle surgery than unilateral. This may reflect the more severe underlying degenerative process in these dogs.

TPLO vs. lateral suture: long-term comparison

TPLO Info confirms owner satisfaction of 93% for TPLO vs. 75% for lateral fabellar suture; kinematic gait analysis also favored TPLO outcomes.

This comparison is most relevant for medium-sized dogs where both procedures are technically appropriate. For large dogs over 35 to 40 kg, TPLO consistently outperforms lateral suture in long-term outcomes.

For small dogs under 15 kg, lateral suture achieves comparable results at substantially lower cost.

TPLO vs. TTA: long-term comparison

SustainableVet.org confirms: when comparing TTA to TPLO, research suggests similar long-term arthritis outcomes in some studies, but TPLO patients usually recover faster and regain function sooner.

The 3+ year follow-up comparative study is the most comprehensive published comparison and clearly favors TPLO in both OA progression and functional/quality-of-life outcomes.

For the TPLO overview, see what is TPLO surgery in dogs?. For the long-term effects list, see 13 long-term effects of TPLO surgery on dogs.

For surgery comparisons, see TPLO vs CBLO vs TTA: a guide to cruciate surgery options. For arthritis management, see arthritis after TPLO surgery in dogs.

Frequently asked questions

Will my dog be completely normal after TPLO?

Most dogs return to their pre-injury activity level after full recovery.

RCVS and multiple studies confirm 90 to 95% regain complete or near-complete function.

"Completely normal" is achievable for most dogs, with the caveat that some mild arthritis develops over time in virtually all cases.

Dogs may show stiffness on cold days or after long rest periods as they age.

Does TPLO stop arthritis?

No -- it reduces and slows arthritis progression compared to conservative management and other surgical techniques, but does not stop it. All CCL-affected stifles develop progressive OA.

The goal of TPLO is to stabilize the joint and minimize the rate of arthritis development, not eliminate it.

How long does the TPLO plate last?

The plate is designed to be permanent.

Good to excellent results at 6.8 years (the longest published TPLO follow-up) with the plate in place demonstrates the durability of the implant in the overwhelming majority of cases.

Plate complications requiring removal occur in 3.5 to 7.5% of cases.

Is my dog at risk for the CCL on the other side?

Yes. RCVS confirms approximately 50% of dogs will develop CCL disease in the other hind limb.

This is not a consequence of TPLO -- it reflects the degenerative nature of CCL disease that typically affects both stifles. Monitoring the contralateral stifle is appropriate in all TPLO dogs.

Does the long-term outcome depend on the surgeon's experience?

Yes, to some degree. Surgeons with more TPLO experience have lower complication rates (including SSI and delayed union), and complications are associated with worse long-term outcomes.

Using a board-certified surgeon or an experienced general practitioner with dedicated TPLO training reduces risk. The published SSI studies confirm surgeon experience as an independent risk factor for post-TPLO complications.

Resources

• TPLO Info. TPLO Literature and Studies. tploinfo.com
• RCVS Canine Cruciate Registry. Tibial Plateau Levelling Osteotomy (TPLO). rcvsknowledge.org
• PMC. Long-Term Functional Outcome After Surgical Repair of Cranial Cruciate Ligament Disease in Dogs. ncbi.nlm.nih.gov
• SustainableVet. Long-Term Outcomes of TPLO Surgery. sustainablevet.org

TPLO is the most commonly performed surgery for CCL rupture in dogs and the most commonly misunderstood.

Misconceptions about TPLO cause unnecessary hesitation, lead some owners to choose inferior alternatives, and create unrealistic expectations about recovery.

This guide addresses the 10 most common myths directly -- with evidence-based clarification for each.

Quick answer: The most persistent TPLO myths: that dogs can manage without surgery, that TPLO is only for large breeds, that recovery takes a few weeks, that the plate must be removed after healing, and that TPLO prevents arthritis. All are false. TPLO has a 90 to 95% success rate.

Key takeaways

• Myth: "My dog can heal without surgery": dog knee anatomy differs fundamentally from human; without surgery, severe OA, meniscal tearing, and chronic lameness are expected in most dogs over 15 kg
• Myth: "TPLO is only for large dogs": SustainableVet.org confirms TPLO is just as effective for small and toy breeds; the biomechanical correction is appropriate regardless of size
• Myth: "Recovery only takes a few weeks": bone healing takes 8 to 12 weeks; full muscle recovery takes 4 to 6 months; 8 to 12 weeks is the minimum restriction period
• Myth: "The plate needs to be removed after healing": the TPLO plate is designed to be permanent; removal is only performed when complications arise
• Myth: "TPLO prevents arthritis": all CCL-affected stifles develop progressive OA regardless of surgical technique; TPLO reduces OA progression but does not prevent it
• Myth: "Dogs are in severe pain after TPLO": SustainableVet.org confirms this is a misconception; modern multi-modal pain management controls post-surgical pain effectively

Myth 1: "My dog can heal without surgery"

The truth: dogs and humans have fundamentally different knee anatomy. In humans, the flat tibial plateau and strong surrounding musculature allow some CCL tears to be managed conservatively with physical therapy and bracing. In dogs, the tibial plateau slopes steeply downward, generating a cranial shear force that the absent CCL cannot resist. Without surgical correction of this force, the joint remains mechanically unstable with every weight-bearing step.

TPLO Info confirms: dogs and humans respond very differently to CCL tears. Without surgery, severe OA can develop, meniscal tearing can occur, and other side effects may be present.

Conservative management (strict rest, weight management, joint supplements, physical therapy) can provide temporary improvement, particularly in small dogs and partial tears.

For most dogs over 15 kg with complete CCL rupture, conservative management does not restore normal joint stability, and progressive lameness, OA, and joint deterioration are the expected outcome.

Who can be managed conservatively?

• Very small dogs (under 10 to 15 kg) with partial tears and low activity levels
• Dogs with significant comorbidities where anesthetic risk outweighs surgical benefit
• Owners who decline surgery after being fully informed of expected outcomes

For all other dogs -- medium and large breeds, young dogs, active dogs, complete ruptures -- surgery produces substantially better outcomes than conservative management.

Myth 2: "TPLO is only for large dogs"

The truth: TPLO was originally developed for large and giant breeds because they were the most severely affected by CCL disease and the most poorly served by lateral suture stabilization. But TPLO corrects the underlying biomechanical problem (excessive tibial plateau angle) in any dog, regardless of size.

SustainableVet.org confirms: TPLO was initially developed for large dogs due to biomechanical challenges, but has been found just as effective for small and toy breeds.

For small dogs, both TPLO and lateral suture stabilization can achieve good outcomes.

The decision for a small dog should be based on the dog's TPA, activity level, and individual assessment -- not a blanket assumption that TPLO is unnecessary.

Myth 3: "TPLO recovery only takes a few weeks"

The truth: bone healing takes 8 to 12 weeks. This is the period of activity restriction. But bone healing and functional recovery are not the same thing. Full muscle rebuilding and joint function restoration takes 4 to 6 months from surgery.

Canada Vet Express confirms: recovery is gradual; most dogs begin walking within a few days and return to normal activity within 3 to 4 months with proper care.

The 8 to 12 week bone healing timeline means:

• Activity restrictions are in place for 8 to 12 weeks minimum
• Radiographic confirmation of healing is required before restrictions are lifted
• Progressive return to full activity follows the radiographic clearance

After restrictions are lifted, the operated leg continues to rebuild strength and coordination for months. For sport dogs and working dogs, the return-to-sport protocol extends to 7 to 9 months from surgery.

Myth 4: "The TPLO plate needs to be removed after the bone heals"

The truth: the plate is designed to remain in place permanently. It does not need to be removed when the osteotomy heals. Routine plate removal is not standard practice in veterinary orthopedics.

SustainableVet.org confirms: these implants are meant to stay in place permanently, but in rare cases they can cause problems; removal is only performed when complications arise.

When plate removal is performed:

• Deep implant-associated infection requiring source removal
• Implant failure (breakage, loosening causing instability)
• Persistent implant irritation producing clinical lameness specifically attributable to the plate

In the vast majority of dogs, the plate is never removed. It remains in place for life with no adverse effects.

Myth 5: "TPLO prevents arthritis"

The truth: TPLO reduces and slows arthritis progression. It does not prevent it. All CCL-affected stifles develop progressive OA regardless of surgical technique or outcome.

SustainableVet.org confirms: mild arthritis is expected even in successful cases.

Published long-term data (TPLO Info, citing long-term retrospective studies) confirms moderate but significant OA progression in all TPLO cohorts with follow-up extending to 6.8 years.

TPLO produces substantially less OA progression than TTA or lateral suture stabilization, but OA progression is universal.

The appropriate expectation: TPLO minimizes OA development and clinical impact. Long-term management (weight management, exercise modification, joint supplements, and periodic NSAID use for flares) is required in all TPLO dogs.

Myth 6: "Dogs are in severe pain after TPLO"

The truth: modern veterinary anesthesia and pain management protocols produce well-controlled post-operative pain in TPLO dogs. Dogs typically begin bearing some weight within 24 to 48 hours. Pain that is not controlled is a clinical problem requiring medication adjustment -- not an expected feature of TPLO recovery.

SustainableVet.org confirms: it is a misconception that dogs experience severe pain after TPLO surgery; modern multi-modal pain management controls post-surgical pain effectively.

Post-operative pain management typically includes: NSAIDs (carprofen, meloxicam), gabapentin, opioids during hospitalization, local anesthetic nerve blocks at surgery.

Dogs in adequate pain control rest comfortably, bear some weight within days, and show appetite by day 3.

Uncontrolled post-operative pain (dog cannot settle, crying, refuses all weight bearing beyond day 3) indicates a need for pain medication adjustment -- contact your vet rather than accepting it as inevitable.

Myth 7: "TPLO is too risky for most dogs"

The truth: TPLO has a 90 to 95% success rate. The complication rate across all studies is 10 to 34%, but the vast majority of complications are minor (superficial infection, seroma, mild swelling). Serious complications requiring revision surgery occur in fewer than 10% of cases.

Dispomed confirms: overall complication rates are 14 to 34%, but a second surgery is required in less than 10% of cases.

No surgery is without risk.

But for a dog with a torn CCL, the risk of TPLO is substantially lower than the certainty of progressive joint deterioration, pain, and reduced quality of life without surgical treatment.

Myth 8: "TPLO is only for show dogs or working dogs"

The truth: TPLO is appropriate for any dog with CCL rupture that will benefit from restored joint stability -- including middle-aged household pets with no competitive goals.

SustainableVet.org confirms: some pet owners mistakenly believe that TPLO surgery is only for show dogs or high-performance athletes; this is not true; TPLO benefits any dog with CCL disease.

The goal of TPLO is freedom from joint pain and restored ability to perform normal daily activities -- walking, playing, using stairs, sitting and rising comfortably.

These are benefits for every dog, not just sport dogs.

Myth 9: "All dogs with CCL tears need TPLO immediately"

The truth: TPLO is not always an emergency. The timing of surgery should be guided by the veterinary assessment. Partial tears in small dogs may be monitored with conservative management. Dogs with significant concurrent illness may benefit from medical optimization before surgery. The appropriate goal is surgical timing that optimizes anesthetic risk and surgical conditions, not surgical urgency at any cost.

SustainableVet.org confirms: while TPLO surgery is the best treatment for CCL tears, it isn't necessary for every case; for mild or partial tears in less active dogs, alternatives can be effective.

However, in dogs with complete rupture, particularly larger breeds, delay generally produces worse outcomes as OA progresses and the meniscus is exposed to ongoing mechanical insult from the unstable joint.

Myth 10: "If TPLO fails, the dog will never recover"

The truth: most TPLO complications are treatable. Superficial infections resolve with antibiotics. Late meniscal tears are treated with partial meniscectomy. Implant failures can be revised. Osteomyelitis, the most challenging complication, requires prolonged treatment but is often successfully managed.

SustainableVet.org confirms: revision TPLO surgery can be performed if the initial procedure fails; this may involve removing or replacing implants, repositioning the tibial cut, or addressing infections.

The critical factor in outcome from a complication is early detection and prompt treatment. Most complications that are identified and treated early resolve without long-term sequelae.

For the full TPLO overview, see what is TPLO surgery in dogs?. For the success rate data, see TPLO failure rate in dogs. For recovery, see what to expect after TPLO surgery.

For alternatives, see alternatives to TPLO surgery for dogs.

Frequently asked questions

Is TPLO actually the best treatment for CCL rupture?

For most dogs over 15 to 20 kg, TPLO is the most evidence-supported surgical option, producing the highest rates of long-term function and owner satisfaction in the published literature.

For small dogs, lateral suture stabilization achieves comparable results at lower cost. The choice depends on the individual dog's size, activity level, TPA, and health status.

Can I wait and see how my dog does without surgery?

You can choose conservative management.

The expected outcome in most dogs over 15 kg with complete CCL rupture who do not have surgery is progressive lameness, rapidly advancing OA, ongoing meniscal damage, and reduced quality of life.

Early surgical intervention consistently produces better long-term outcomes than delayed or non-surgical management.

Is the recovery really as strict as described?

Yes. The restriction protocol exists because the plate holds the osteotomy until new bone consolidates -- a process that takes 8 to 12 weeks regardless of how well the dog appears.

A single running or jumping episode before healing is confirmed can displace the plate and require revision surgery.

Will my dog be the same dog after TPLO?

Most owners report their dog is effectively the same dog -- or better than before the CCL rupture -- within 6 to 12 months of surgery.

The 90 to 95% success rate reflects a high proportion of dogs returning to their previous activity level.

Some dogs develop mild age-related stiffness years later as OA progresses, but this is manageable with appropriate care.

Does TPLO cure the CCL problem permanently?

TPLO permanently corrects the biomechanical cause of CCL-related instability in the operated stifle. It does not repair or replace the CCL -- it makes the CCL unnecessary.

It does not prevent CCL disease in the contralateral stifle.

Resources

• SustainableVet. Common Myths About TPLO Surgery Explained. sustainablevet.org
• TPLO Info. 5 Misconceptions About TPLO Surgery. tploinfo.com
• Dispomed. TPLO Surgery in Dogs: Success Rates and Alternatives. dispomed.com
• ACVS. Cranial Cruciate Ligament Disease. acvs.org

TPLO surgery requires general anesthesia that is tailored to the individual patient. For most healthy adult dogs, TPLO anesthesia is straightforward and low-risk.

For older dogs, obese dogs, or those with concurrent medical conditions, the anesthetic plan requires additional planning.

Understanding what the protocol involves helps owners know what to expect and how to prepare their dog.

Quick answer: TPLO anesthesia includes a preoperative blood panel; premedication with an opioid and sedative; induction with propofol or alfaxalone; maintenance with isoflurane or sevoflurane; continuous monitoring; and multimodal pain management including NSAIDs, nerve blocks (sciatic/femoral or epidural), and post-operative opioids.

Key takeaways

• Preoperative blood work is standard for all TPLO patients: CBC and biochemistry identify organ dysfunction and conditions that increase anesthetic risk
• TPLO anesthesia is multimodal: combining opioids, NSAIDs, nerve blocks, and inhalant anesthetic reduces total drug doses and improves pain control
• Nerve blocks are now standard in TPLO anesthesia: femoral and sciatic blocks with bupivacaine reduce post-operative opioid requirements
• A published feasibility study achieved total opioid-free post-operative analgesia in TPLO dogs using nerve blocks, ketamine, isoflurane, and meloxicam
• Epidural analgesia reduces post-operative opioid requirements by 36% compared to no epidural, per PMC study data
• Food is withheld 8 to 12 hours before surgery to reduce aspiration risk; water restriction is typically shorter

Pre-anesthetic assessment

Every dog undergoing TPLO is evaluated before anesthesia to identify risk factors and optimize the anesthetic plan.

Physical examination: body weight, cardiovascular and respiratory status, mucous membrane color and capillary refill, hydration status, and assessment of concurrent conditions.

Blood work: complete blood count (CBC) detects anaemia, infection, and platelet abnormalities. Biochemistry panel assesses kidney function (creatinine, BUN), liver function (ALT, ALP, bilirubin), blood glucose, and electrolytes. These results determine anesthetic drug selection and guide fluid therapy.

ASA classification: anesthesiologists use the American Society of Anesthesiologists (ASA) physical status classification (1 to 5) to communicate overall health status. Most TPLO patients are ASA class 1 (healthy) or 2 (mild systemic disease). Dogs with significant cardiac, renal, or hepatic disease may be ASA 3 or higher and require additional monitoring or modified protocols.

Premedication

Premedication is given 20 to 40 minutes before induction.

It serves to calm the dog, reduce anxiety, provide early analgesia (preemptive analgesia), reduce the amount of induction and maintenance agent required, and make induction smoother.

Opioids (most common premedication component for TPLO):

• Hydromorphone: commonly used as a premedication; the PubMed perioperative analgesia study used hydromorphone plus acepromazine as premedication in all 56 TPLO dogs
• Methadone: provides both opioid analgesia and NMDA receptor antagonism; commonly used as a premedication in many European centres
• Morphine: used in some protocols, particularly when combined with epidural administration

Sedatives:

• Acepromazine: a phenothiazine tranquilizer that provides reliable sedation; use is reduced in patients with cardiovascular compromise due to vasodilatory effects
• Medetomidine or dexmedetomidine: alpha-2 agonists providing sedation, analgesia, and muscle relaxation; used in the opioid-free feasibility protocol (PMC 2024)
• Midazolam: benzodiazepine used particularly in geriatric or debilitated dogs for its minimal cardiovascular effects

Anesthetic induction

Induction agents produce rapid unconsciousness, allowing placement of an endotracheal tube for airway control.

Propofol: the most commonly used induction agent in healthy dogs. Provides smooth, rapid induction with a short duration, making induction-to-intubation management easy.

Alfaxalone: a neuroactive steroid with a similar profile to propofol. Used in some protocols as an alternative, particularly in smaller dogs or where propofol is not available.

Ketamine + midazolam: used in some protocols as an alternative induction combination, particularly when some degree of analgesia is desired at induction. Also used in opioid-sparing protocols.

Intraoperative maintenance

Inhalant anesthetics (isoflurane or sevoflurane) are delivered via endotracheal tube to maintain unconsciousness throughout the surgery.

Isoflurane is the most widely used agent in veterinary anaesthesia for TPLO. Sevoflurane provides faster recovery but is more expensive. Both are effective.

IV constant rate infusions (CRI) during surgery augment inhalant anesthesia and reduce inhalant requirements:

• Ketamine CRI: used in opioid-sparing protocols; the PMC feasibility study used ketamine CRI at 0.6 mg/kg/h throughout surgery
• Morphine-lidocaine-ketamine (MLK CRI): a well-established combination providing balanced intraoperative analgesia with reduced inhalant requirements
• Fentanyl CRI: an opioid CRI providing titratable intraoperative analgesia

Regional analgesia (nerve blocks)

Nerve blocks have become a key component of TPLO anesthesia because they provide superior post-operative pain control compared to systemic opioids alone.

Femoral and sciatic nerve blocks (FSNB): block the main sensory nerves to the stifle joint and hind limb. Performed before surgery with bupivacaine. PMC research comparing nerve blockade approaches for TPLO confirms that femoral and sciatic nerve blocks provide superior postoperative analgesia compared to IV CRI alone.

Lumbosacral epidural: injection of morphine and bupivacaine into the epidural space. PMC data (epidural + liposomal bupivacaine study) found epidural analgesia produced 36% fewer post-operative opioid injections compared to no epidural.

Intra-articular injection: bupivacaine injected directly into the stifle joint before or after surgery. Used as an alternative or supplement to nerve blocks in some protocols.

Intraoperative monitoring

Standard TPLO monitoring includes:

• ECG: continuous heart rate and rhythm monitoring
• Pulse oximetry (SpO2): peripheral oxygen saturation
• Capnography (end-tidal CO2): assesses ventilation adequacy; dogs are often placed on mechanical ventilation during TPLO
• Blood pressure: direct arterial or indirect Doppler/oscillometric
• Temperature: hypothermia is a common complication of long anesthetic events; warming devices are used routinely
• Depth of anesthesia assessment: clinical signs including eye position, jaw tone, and response to surgical stimulation

Post-operative pain management

TPLO is a significant orthopedic procedure and post-operative pain management directly affects recovery quality and rate of return to function.

NSAIDs: meloxicam or carprofen are administered in the peri-operative period and continued at home for 7 to 14 days minimum. The PMC opioid-free protocol administered meloxicam 0.2 mg/kg IV intraoperatively.

Opioids: hydromorphone or buprenorphine for 24 to 48 hours post-operatively, reducing as the nerve block wears off and NSAID analgesia covers the residual pain.

Gabapentin: increasingly prescribed for the first 1 to 2 weeks post-operatively to address neuropathic pain components associated with the surgical trauma and healing nerve tissues.

For the full recovery guide and what to expect after waking up, see what to expect after TPLO surgery in dogs.

For the leg shaking guide that often relates to anesthetic recovery, see dog leg shaking after TPLO surgery.

For the incontinence guide related to catheterization and anesthesia effects, see dog incontinence after TPLO surgery. For the post-surgical pain guide, see dog whining after TPLO surgery: causes and care.

Frequently asked questions

Is TPLO anesthesia safe for dogs?

For healthy adult dogs, TPLO anesthesia is considered low-risk. The most significant risks involve cardiovascular depression from the anesthetic agents and hypothermia during the procedure.

These are managed through continuous monitoring and supportive care. Pre-anesthetic blood work identifies dogs with conditions that increase risk.

How long is the dog under anesthesia for TPLO?

Total anesthesia time typically ranges from 1.5 to 2.5 hours for a standard TPLO, depending on the surgeon's experience and any complications.

Dogs are usually extubated within 15 to 30 minutes of the end of surgery as they recover consciousness.

What happens if my dog is in pain when it wakes up from TPLO?

Post-operative pain assessment is performed by the veterinary team as the dog recovers. Rescue analgesia (additional opioid doses) is given if pain scores exceed defined thresholds.

The goal of the multimodal protocol is to prevent pain peaks rather than treat pain after it occurs.

Contact the surgical team if your dog appears to be in significant pain after discharge.

My dog is older. Is anesthesia more dangerous?

Age increases anesthetic risk because older dogs are more likely to have subclinical cardiac, renal, or hepatic disease, slower drug metabolism, and reduced physiological reserve.

Thorough pre-anesthetic bloodwork and cardiac assessment (chest X-ray, echocardiogram in selected cases) helps quantify risk. The anesthetic team adjusts protocols for older patients with reduced drug doses and enhanced monitoring.

What does fasting before TPLO mean?

Food is typically withheld for 8 to 12 hours before anesthesia to reduce the risk of vomiting and aspiration during induction or recovery.

Water restriction is typically shorter often until the night before or only 2 to 4 hours before surgery.

Follow your surgeon's specific instructions, which are tailored to your dog's size and health status.

Resources

• PMC. Postoperative Opioid-Free Analgesia in Dogs Undergoing TPLO: A Feasibility Study. pmc.ncbi.nlm.nih.gov
• PMC. Incidence of Postoperative Opioids in TPLO Dogs After Liposomal Bupivacaine With or Without Morphine Epidural. ncbi.nlm.nih.gov
• PubMed. Comparison of Perioperative Analgesic Protocols for Dogs Undergoing TPLO. pubmed.ncbi.nlm.nih.gov
• PMC. Effects of Saphenous and Sciatic Nerve Blocks, Lumbosacral Epidural or MLK CRI on Postoperative Pain in TPLO Dogs. pmc.ncbi.nlm.nih.gov
• VCA Animal Hospitals. Tibial Plateau Leveling Osteotomy (TPLO) in Dogs. vcahospitals.com

Some redness around a TPLO incision is a completely normal part of healing.

The skin and underlying tissues respond to any surgical trauma with an inflammatory response redness is one of the visible signs of that response.

The question is always: is this normal healing redness, or is this infection?

Quick answer: Mild redness at the TPLO incision is normal for 2 to 3 days, fading over 1 to 2 weeks. Call your vet if redness spreads, is warm, produces discharge, worsens after day 3, or your dog develops fever.

Key takeaways

• Mild redness at the incision is normal for 2 to 3 days post-surgery: it should be fading by day 3 to 5
• Normal redness is localized to the incision line: redness spreading outward from the wound edge is not normal
• Infection redness is spreading, warm, and accompanied by discharge: these features together require veterinary evaluation
• Suture reaction redness is localized and itchy: the pattern is different from infection and typically resolves after suture removal
• Licking is the most preventable wound complication: saliva introduces bacteria; the E-collar must stay on until suture removal
• Redness after week 2 warrants veterinary evaluation: new redness after day 14 suggests a complication

Normal redness after TPLO surgery

The inflammatory phase of wound healing is the body's first response to surgical trauma. Blood flow increases to the wound, bringing immune cells and clotting factors.

This increased blood flow makes the skin appear pink or faintly red. This is expected and necessary for healing.

SustainableVet.org confirms: normal redness after TPLO surgery is usually mild and limited to the incision area. It should improve daily as the wound heals.

Characteristics of normal healing redness:

• Confined to the immediate edges of the incision not spreading outward
• Mild pale pink to light red, not deep red or purple
• Decreasing over time improving from day 3 onward
• Not warm to the touch (normal healing generates mild local warmth, but not the significant heat of infection)
• No discharge from the wound other than possibly a small amount of serum in the first 24 to 48 hours
• The dog is not bothered by gentle examination of the area

The redness typically peaks at 48 to 72 hours post-surgery and should be noticeably fading by the end of the first week.

Abnormal redness: signs of infection

Infection redness is different from normal healing redness in several characteristic ways:

Spreading: the redness extends outward from the incision margin into the surrounding skin. This cellulitis pattern spreading red discoloration in surrounding tissue is a sign that bacteria are spreading through the tissue planes.

Warmth: the infected area feels significantly warmer than surrounding skin or the opposite leg. Infection drives significant local heat through the inflammatory cytokine response.

Discharge: infected wounds produce discharge that may be clear-to-yellow early, progressing to yellow-green, cloudy, or frankly purulent. Foul odor is a hallmark of anaerobic bacterial involvement.

Worsening, not improving: normal redness fades. Infected redness intensifies. If redness is worse at day 5 than at day 2, infection is strongly suspected.

Systemic signs: fever (rectal temperature above 102.5 F), lethargy, loss of appetite, and reluctance to bear weight alongside redness suggest the infection is causing systemic effects.

SustainableVet.org confirms: infection risk includes bacteria entering the incision, causing redness that worsens along with discharge or odor.

The TPLO incision infection guide confirms: infection risk occurs in approximately 3 to 10% of TPLO cases. Signs of infection include redness, swelling, warmth, discharge, and delayed healing.

Other causes of post-TPLO redness

Suture or staple reaction

Some dogs develop a local inflammatory reaction to the suture material more commonly with older suture types or in dogs with sensitive skin.

This produces redness specifically along the suture line, often with mild swelling and sometimes itching (prompting the dog to lick or chew at the site).

It is localized, does not produce the spreading pattern of infection, and typically resolves after suture removal.

Contact dermatitis

Redness from a reaction to bandage material, antiseptic solution applied to the wound, or topical medications can mimic early infection. The pattern follows the contact area rather than the wound edge.

Seroma formation

A seroma that presses against the overlying skin may cause mild skin discoloration and the appearance of redness over the fluid-filled swelling. The area is soft, fluctuant, and typically not warm.

For the full seroma guide, see seroma in dogs after TPLO surgery.

What to do if you notice redness

First 3 days: normal range

Monitor daily. Take a photograph to track progression. Ensure the E-collar is on at all times. Check that no discharge or spreading is occurring.

Days 3 to 10: should be improving

If redness is not clearly fading by day 5 to 7, contact your veterinarian.

Photograph the wound to share with the vet by phone or telehealth before deciding whether an in-person visit is needed.

Do not apply any topical products to the wound without veterinary guidance antiseptics can delay healing and worsen skin reaction.

After day 10: any new or persistent redness needs evaluation

By day 10 to 14, most surgical incisions are well into the proliferative healing phase.

Persistent redness at this stage, or new-onset redness that was not present before, warrants a veterinary appointment rather than home monitoring.

Incision care during recovery

• Keep the incision dry: no bathing, no swimming, no wet grass
• E-collar on at all times until sutures are removed (typically day 10 to 14)
• Check the wound twice daily: look at it, do not touch it unless instructed
• No ointments or antiseptics unless specifically prescribed
• Contact your vet before applying anything to the wound

For the incision infection guide with full symptom detail, see TPLO incision infection symptoms and prevention. For the full complications reference, see 15 common complications after TPLO surgery in dogs.

For the seroma guide (fluid that can cause discoloration), see seroma in dogs after TPLO surgery. For the full TPLO recovery guide, see what to expect after TPLO surgery in dogs.

Frequently asked questions

How do I know if my dog's incision redness is normal?

Normal redness is mild, pink, confined directly to the wound edges, and fading by day 3 to 5.

Abnormal redness is spreading outward from the incision, deepening in color, warm to the touch, or accompanied by discharge or odor. If you are unsure, photograph the wound and contact your veterinarian.

My dog's incision looks red and my dog keeps licking it. What should I do?

Replace or refit the E-collar immediately if the dog has been reaching the wound. Even a few minutes of licking introduces bacteria.

Examine the wound for any discharge, spreading redness, or wound breakdown. If you see any of these, contact your vet the same day.

If the wound looks intact, continue monitoring closely with the E-collar secured.

Can redness appear weeks after surgery?

Yes. Late-onset redness appearing 2 to 6 weeks post-surgery often signals a developing infection rather than normal healing.

Common causes include low-grade suture infection, developing seroma, or a bacterial infection that has been slowly progressing. Any new redness appearing after the initial 2-week healing phase warrants veterinary evaluation.

Is red skin around the TPLO staples normal?

A small amount of mild pinkness immediately at the staple insertion points is normal.

Spreading redness between staple sites, significant swelling along the staple line, or discharge from staple holes is not normal and requires veterinary evaluation before the scheduled staple removal visit.

What happens if redness from infection is left untreated?

Superficial infections can progress to deeper tissue infections, then to implant-associated infections and osteomyelitis.

Laguna Hills Animal Hospital confirms that even superficial soft tissue infections have been shown to progress to implant infections and bone infections when not treated promptly and appropriately.

Resources

• SustainableVet. TPLO Incision Infection Symptoms and Prevention. sustainablevet.org
• Dial A Vet. Redness and Swelling Around TPLO Incision. dialavet.com
• Laguna Hills Animal Hospital. TPLO Surgery Complications. lhah.com
• VCA Animal Hospitals. Tibial Plateau Leveling Osteotomy (TPLO) in Dogs. vcahospitals.com