A Staph infection after TPLO surgery is a bacterial infection caused by Staphylococcus species at the surgical site. These infections happen when bacteria enter the incision, leading to inflammation, pain, swelling, and, in severe cases, delayed healing or implant issues.

The most common bacteria involved are

• Staphylococcus pseudintermedius (S. pseudintermedius is naturally found on a dog's skin and can become problematic after surgery.)
• Staphylococcus aureus (S. aureus is less common in dogs but can still cause serious infections, sometimes resistant to antibiotics like MRSA.)

TPLO surgeries are particularly prone to infection because of the metal implants, which provide a surface for bacteria to stick to and form biofilms. Additionally, open incisions, surgical trauma, and a dog's licking or scratching increase the risk of infection.

Using proper sterile techniques, taking care of the wound after surgery, and detecting infections early are crucial for preventing complications and ensuring a smooth recovery.

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TL;DR

• Staph infections after TPLO surgery are rare but can happen, with Staphylococcus pseudintermedius being the most common culprit.
• Early treatment with antibiotics is crucial as infections typically won't heal on their own and can lead to serious complications.
• Untreated infections may cause osteomyelitis, implant failure, or systemic illness, requiring more invasive treatments.
• Proper post-op care and monitoring the incision site are key to preventing infections.
• If an infection is severe, the TPLO plate may need to be removed to prevent further complications.

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Causes of Staph Infection After TPLO Surgery

Staph infections after TPLO surgery occur when Staphylococcus bacteria enter the surgical site, multiply, and trigger an inflammatory response. These infections can develop due to various factors, often related to contamination, improper wound care, or the dog's overall health.

Surgical Site Contamination - Even with strict sterile protocols, bacteria from the skin, surgical instruments, or operating room can enter the incision. Staphylococcus pseudintermedius is naturally found on a dog's skin and may infect the site if proper antiseptic measures are not followed.

Improper Wound Care - After surgery, poor wound management increases infection risk. If bandages are not changed regularly, the incision is exposed to dirt, or the dog licks the wound, bacteria can enter. Delayed healing also creates an opportunity for bacterial overgrowth.

Weakened Immunity - Dogs with weakened immune systems due to age, chronic illnesses (like diabetes or Cushing’s disease), or prolonged use of immunosuppressive medications are more vulnerable to infections. Their bodies struggle to fight bacteria, increasing the risk of severe complications.

Hospital-Acquired vs. Environmental Bacteria - Hospital-acquired infections, often resistant to antibiotics (e.g., MRSA), pose a serious threat. Environmental bacteria, from bedding, floors, or other animals, can also infect wounds if hygiene is inadequate. Proper post-op care and monitoring are essential for prevention.

Risk Factors for Developing Infections Post-TPLO

Several factors increase the risk of Staph infection after TPLO surgery, including dog-related, surgical, and post-op care factors. Understanding these risks helps in preventing complications and ensuring a smooth recovery.

Dog-Related Factors

Certain dogs are more prone to infections. Older dogs, immunocompromised pets (diabetes, Cushing’s disease), and breeds with skin folds (like Bulldogs) are at higher risk due to weaker immune defenses or bacterial colonization. Overweight dogs also have reduced blood flow to the incision, slowing healing.

Surgical Factors

Implant contamination is a major concern, as metal plates provide a surface for bacteria to form biofilms, making infections harder to treat. Prolonged surgery times, non-sterile conditions, and inadequate antibiotic prophylaxis increase infection risk.

To minimize this, many surgeons use Simini Protect Lavage, a non-antibiotic surgical lavage that helps reduce bacterial contamination and biofilm formation on implants, lowering the chances of post-op infections.

Post-Op Care Factors

Excessive licking, poor hygiene, and delayed wound healing significantly raise infection risks. Dogs licking their incision introduce bacteria, while unclean bedding and surroundings expose wounds to environmental contaminants. Owners must follow strict post-op wound care guidelines and monitor for early signs of infection.

Symptoms of a Staph Infection After TPLO Surgery

Recognizing the early signs of Staph infection after TPLO surgery is crucial for timely treatment. Infections can range from mild to severe, potentially leading to implant complications or systemic illness if left untreated.

Early Signs - In the initial stages, the infection may cause redness, swelling, and warmth around the incision site. Mild discomfort is normal post-surgery, but persistent inflammation or increasing pain could indicate bacterial activity. Some dogs may start licking or chewing the incision, further worsening the condition.

Moderate Symptoms - As the infection progresses, pus or thick discharge may develop, often accompanied by a foul odor. The incision may start to separate or appear moist and inflamed. Dogs might also show signs of discomfort, such as limping, stiffness, or reluctance to bear weight on the affected leg. These symptoms suggest that the infection is spreading deeper into the tissue.

Severe Symptoms - In advanced cases, the infection can lead to systemic illness, causing fever, lethargy, loss of appetite, and general weakness. If bacteria spread to the bone or implant, it can result in implant loosening or failure, requiring urgent medical intervention. Immediate veterinary attention is needed to prevent complications and ensure proper healing.

How Staph Infections Are Diagnosed After TPLO Surgery

Diagnosing a Staph infection after TPLO surgery requires a thorough veterinary examination, laboratory tests, and sometimes imaging to assess the severity of the infection and its impact on the surgical site.

Veterinary Examination and Wound Assessment

A veterinarian will start by visually inspecting the incision site for signs of infection, such as redness, swelling, pus, or a foul odor. They will also check for pain, heat, and any abnormal discharge. If the dog is limping, lethargic, or showing signs of discomfort, it may indicate a deeper infection affecting the bone or implant.

Lab Tests: Bacterial Culture and Antibiotic Sensitivity

To confirm a Staph infection, a bacterial culture is performed by collecting a sample from the infected area. This test identifies the specific bacteria causing the infection, typically Staphylococcus pseudintermedius or Staphylococcus aureus.

Antibiotic sensitivity testing is then conducted to determine which antibiotics will be most effective, especially important for resistant strains like MRSP (Methicillin-Resistant Staphylococcus pseudintermedius).

Imaging Methods for Implant-Associated Infections

If an infection is suspected to have spread to the bone or implant, X-rays or advanced imaging like CT scans may be used. These help detect signs of bone lysis, implant loosening, or deep tissue infection, which could require additional surgical intervention. Early diagnosis is crucial to prevent complications and improve treatment outcomes.

The Role of Multidrug-Resistant Bacteria in TPLO Infections

One of the biggest challenges in treating Staph infections after TPLO surgery is the presence of multidrug-resistant bacteria, particularly Methicillin-Resistant Staphylococcus pseudintermedius (MRSP). This bacterial strain has developed resistance to many commonly used antibiotics, making infections harder to treat and increasing the risk of complications.

What is MRSP?

MRSP is a resistant form of Staphylococcus pseudintermedius, a bacterium normally found on a dog’s skin. In healthy dogs, it rarely causes issues, but after TPLO surgery, it can infect the surgical incision and implants, leading to persistent infections. MRSP is similar to MRSA (Methicillin-Resistant Staphylococcus aureus) in humans, making it difficult to eliminate with standard antibiotics.

Why Traditional Antibiotics May Not Work

Since MRSP is resistant to beta-lactam antibiotics (penicillins and cephalosporins), commonly prescribed antibiotics may be ineffective. Inappropriate antibiotic use can worsen resistance, making treatment options more limited. Infected implants and biofilm formation further protect the bacteria, requiring alternative treatments.

Impact on Treatment Complexity and Recovery Time

Resistant infections prolong recovery, as stronger antibiotics, prolonged treatment, or even implant removal may be necessary. In severe cases, advanced antimicrobial therapies, surgical debridement, or alternative infection-control measures like Simini Protect Lavage may be required to manage the infection and prevent recurrence. Early culture and sensitivity testing is essential for selecting the most effective treatment.

How Biofilms on Implants Worsen Staph Infections

Biofilms are colonies of bacteria that form a protective layer on surfaces, such as TPLO plates and screws. In post-surgical infections, Staphylococcus pseudintermedius and other bacteria can attach to the metal implant, creating a slimy, protective matrix that shields them from antibiotics and the immune system.

How Biofilms Form on TPLO Implants

After TPLO surgery, bacteria from the skin, surgical instruments, or environment can adhere to the implant. Once attached, they produce a sticky extracellular substance, allowing them to grow and form a dense bacterial community. These biofilms anchor bacteria to the implant surface, making infections harder to eradicate.

Why Biofilms Resist Antibiotics and Immune Responses

Biofilms create a physical and chemical barrier that prevents antibiotics from fully reaching the bacteria. Additionally, bacteria within biofilms enter a dormant state, reducing their susceptibility to drugs that typically target active bacterial growth. The immune system also struggles to clear biofilms, as white blood cells cannot penetrate the bacterial layer effectively.

Treatment Challenges and Surgical Interventions

Because biofilm-associated infections are difficult to treat, prolonged antibiotic therapy alone is often ineffective. In severe cases, surgical debridement or implant removal may be required.

Many surgeons use Simini Protect Lavage during TPLO procedures to reduce bacterial adhesion and biofilm formation, helping to lower the risk of persistent infections.

Complications of Staph Infection After TPLO Surgery

A Staph infection after TPLO surgery can lead to severe complications if not treated promptly. The presence of metal implants, biofilm formation, and antibiotic-resistant bacteria make these infections particularly challenging.

• Implant Rejection or Failure - When bacteria colonize the TPLO plate, they can cause loosening of the implant, preventing proper bone healing. The immune system may recognize the infection as a foreign threat, triggering chronic inflammation and implant rejection. In severe cases, implant removal and revision surgery are required.
• Chronic Infections Leading to Osteomyelitis - Untreated or persistent infections can spread to the bone, causing osteomyelitis (bone infection). This condition leads to bone destruction, pain, and ongoing inflammation. Osteomyelitis often requires long-term antibiotics, surgical debridement, and sometimes implant removal to eliminate infected tissue.
• Increased Surgical Costs and Prolonged Recovery - Managing an infection often involves extended hospitalization, additional lab tests, imaging, and stronger antibiotics, significantly increasing treatment costs. The healing process is also delayed, prolonging the dog's discomfort and recovery timeline.
• When Amputation Might Become Necessary - In rare and extreme cases, if the infection is severe, untreatable, or has caused significant bone damage, limb amputation may be the only option to prevent systemic infection and further suffering. Early intervention is critical to avoid this drastic measure.

Treatment Options for Staph Infection Post-TPLO Surgery

Antibiotic Therapy

Common antibiotics for Staph infections include Clindamycin and Cephalexin, but resistant strains like MRSP require targeted antibiotics based on culture and sensitivity testing. If standard treatments fail, fluoroquinolones or chloramphenicol may be necessary. Completing the full antibiotic course is essential to prevent recurrence and resistance. Improper use of antibiotics can worsen resistance, making future infections harder to treat.

Surgical Interventions

If the infection is severe or antibiotics fail, surgical debridement is required to remove infected tissue and biofilm. In persistent infections, implant removal or revision surgery may be necessary. Surgeons may use antibiotic-impregnated beads to deliver localized medication directly to the infected site. This approach helps manage deep infections while preserving limb function, reducing the need for implant removal.

Supportive Care & Wound Management

Topical treatments like chlorhexidine and silver-based dressings help control bacterial growth at the incision. Proper wound cleaning, bandaging, and preventing licking are essential for recovery. Pain management with NSAIDs or opioids reduces discomfort, while anti-inflammatory medications control swelling. Supportive care ensures healing and prevents the infection from worsening or spreading further.

Why Early Detection and Intervention Are Crucial

Early detection and intervention are essential in preventing serious complications from Staph infections after TPLO surgery. The longer an infection goes untreated, the more likely it is to spread and cause severe complications such as osteomyelitis (bone infection), implant failure, or systemic illness. Timely treatment helps limit the damage, reduce recovery time, and avoid costly surgical interventions.

How Early Treatment Prevents Serious Complications - When infections are caught early, antibiotics can effectively control the bacteria before it forms a biofilm on the implant, making it resistant to treatment. Early intervention reduces the chances of bone destruction, chronic infections, and the need for implant removal or amputation.

When to Consult a Vet Immediately - If your dog shows any signs of infection, such as increased swelling, redness, warmth, or pus at the incision site, limping, lethargy, or fever, contact your vet immediately. Foul-smelling discharge or worsening symptoms require urgent attention, as they indicate that the infection is spreading.

The Importance of Regular Follow-Ups After TPLO Surgery - Post-surgery follow-ups are crucial for monitoring the surgical site and identifying early signs of infection. Regular check-ups help ensure that any issues are detected before they develop into more severe problems, ensuring the best possible recovery and reducing the risk of complications.

How to Prevent Staph Infections After TPLO Surgery

Pre-Surgical Prevention

Preventing Staph infections starts before surgery with proper planning. The sterile surgical environment is crucial in minimizing contamination during the procedure. Surgeons should follow strict sterilization protocols to prevent bacteria from entering the wound.

For high-risk dogs, pre-operative antibiotic protocols are recommended, especially if the dog has underlying health conditions like diabetes or is older, as these factors can weaken the immune system and increase infection susceptibility.

Post-Surgical Care Guidelines

Post-surgery, wound monitoring and cleaning are essential for preventing infection. Keep the surgical site dry and clean, changing bandages as instructed. Using an e-collar (cone of shame) can help prevent your dog from licking or biting the wound, which can introduce bacteria.

Avoid exposing your dog to contaminated environments, such as dog parks, dirty floors, or areas with other animals, until the wound is fully healed. This minimizes the risk of external contamination.

Long-Term Prevention Strategies

To maintain your dog’s health after surgery, ensure they have a well-balanced diet and consider supplements that support immune function, such as omega-3 fatty acids. Regular vet checkups help monitor recovery and prevent potential infections.

Even months after surgery, look for signs like swelling, redness, or changes in behavior that could indicate infection risks. Early intervention can prevent complications and ensure your dog’s full recovery.

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Read more about:

• Post-Surgery Recovery After TPLO in Dogs
• TPLO Surgery for Older Dogs: Is It a Worthwhile Option?
• Common Myths About TPLO Surgery Explained
• 13 Long-Term Effects of TPLO Surgery on Dogs

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Final Thoughts

Staph infections after TPLO surgery can be very serious, leading to implant failure, bone infections, and longer recovery times. Early signs like redness, swelling, or discharge around the incision should never be ignored. Quick treatment with antibiotics and, if needed, surgery is vital to avoid serious problems.

Catching these infections early is crucial to stopping them from getting worse. Noticing the signs early and getting veterinary care right away can lead to better results and lower the risk of long-term harm. Proper post-surgery care, like cleaning the wound, using e-collars, and avoiding dirty areas, is key to preventing infections.

Pet owners should actively monitor their dog’s recovery and keep up with regular vet visits. If any issues arise, consult a vet without delay. Prevention and quick action are the best ways to ensure a smooth recovery and reduce the risk of Staph infections after TPLO surgery.

FAQs

How common is a staph infection after TPLO surgery?

Staph infections after TPLO surgery are relatively uncommon but still a risk, especially in high-risk dogs. Approximately 5-10% of dogs undergoing TPLO may develop infections, with Staphylococcus pseudintermedius being the most common bacterial culprit. Proper sterile technique during surgery, post-op care, and infection prevention strategies can reduce the chances of infection.

Can a staph infection after TPLO surgery heal on its own?

A staph infection after TPLO surgery typically does not heal on its own. Bacterial infections require medical treatment, such as antibiotics, to clear up. Without proper treatment, the infection can spread, causing serious complications like bone infection or implant failure. Seeking veterinary care immediately for proper diagnosis and treatment is essential.

What happens if a TPLO infection is left untreated?

If a TPLO infection is left untreated, it can lead to severe complications such as osteomyelitis (bone infection), implant failure, or systemic illness. The infection may spread deeper, causing chronic pain and delayed healing. In some cases, untreated infections may require surgical intervention, including implant removal or even amputation in extreme situations.

How long does it take for an infection to clear up after TPLO?

The time it takes for an infection to clear up after TPLO surgery depends on the severity of the infection and treatment method. Mild infections may clear up in 2-4 weeks with antibiotics, while severe infections can take several months and may require additional surgeries. Follow-up care is crucial to monitor progress and ensure full recovery.

Are certain dog breeds more prone to infections after TPLO?

Certain dog breeds are more prone to infections after TPLO surgery due to factors like skin folds, immune system strength, or breed-specific health issues. Breeds like Bulldogs, Pugs, and Boxers with compromised immune systems or skin conditions may have a higher risk of infection. Additionally, older dogs or those with chronic conditions like diabetes are more vulnerable.

What should I do if my dog’s TPLO incision looks infected?

If your dog’s TPLO incision looks infected, such as showing redness, swelling, pus, or a foul odor, you should consult your vet immediately. Early intervention with antibiotics or surgical debridement is essential to prevent the infection from spreading. Avoid letting your dog lick the wound and keep the incision clean while awaiting professional care.

Can a TPLO plate be removed if it causes infection?

Yes, a TPLO plate can be removed if it causes infection. In cases where the infection is persistent or deep, or if the implant becomes loose or infected, removal of the plate may be necessary to eliminate the source of the infection. The veterinarian will assess the situation and determine whether removal or revision surgery is the best option for recovery.

TPLO (Tibial Plateau Leveling Osteotomy) surgery is known as one of the best treatments for cranial cruciate ligament (CCL) tears in dogs, similar to ACL injuries in humans. This surgery has greatly improved outcomes for dogs, allowing them to move freely and live without pain.

Despite its success, there are several myths about TPLO surgery. These misconceptions can cause hesitation in recommending or choosing this procedure, which might delay the best care for dogs in need.

Knowing the facts about TPLO surgery is important for making informed decisions about your dog's health. In this article, we will clear up common myths, providing clear and evidence-based information to help pet owners confidently choose the best care for their furry friends.

Myth 1 - TPLO Surgery Isn't Always Necessary for ACL Tears

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 like the lateral suture technique or conservative management, including physical therapy and weight management, can be effective. These options are often best for smaller breeds or older dogs with minimal joint instability.

In our experience, TPLO surgery is the best option for active dogs or those with complete ligament tears. This procedure stabilizes the knee by changing the joint's biomechanics, preventing further damage and greatly reducing the risk of degenerative joint disease. For highly active dogs, this stability is essential for maintaining long-term function and quality of life.

Myth 2 - TPLO Surgery is Only for Large Breed Dogs

A common myth we often hear is that TPLO surgery is mainly for large or giant breeds. While it's true that TPLO was initially developed for these dogs due to the biomechanical challenges their size presents, we have found it to be just as effective for small and toy breeds.

For smaller dogs, we adjust the procedure to meet their specific anatomical needs, ensuring precise results. The core principles of TPLO remain the same: restoring joint stability, reducing pain, and preventing further damage. Whether the patient is a 5-pound Chihuahua or a 100-pound Labrador Retriever, the goal is the same—helping them regain full function and enjoy a pain-free life.

Myth 3 - TPLO Surgery is Only Necessary for Show or Performance Dogs

Some pet owners mistakenly believe that TPLO surgery is only for show dogs or high-performance athletes. While these dogs do benefit from the procedure to maintain their competitive edge, the truth is that TPLO is valuable for any dog needing long-term knee stability and pain relief.

In our practice, we perform TPLO surgery on a wide range of canine patients, from household companions to working dogs. This procedure isn't about a dog's role or lifestyle; it's about ensuring they can walk, run, and play without pain. For active family pets, TPLO surgery greatly improves mobility, helping them enjoy a better quality of life well into their senior years.

Myth 4 - Recovery From TPLO is Extremely Difficult

It's natural for pet owners to worry about recovery, but we assure you that with proper care, the process is manageable and the outcomes are very positive. Most dogs start putting weight on the operated leg within a few days after surgery, and most return to nearly normal activity levels by the 12-week mark.

The recovery process follows a structured plan, including controlled activity, regular check-ups, and physical therapy if needed. During the first two weeks, we recommend strict rest to ensure the surgical site heals properly.

Gradual reintroduction of activity follows, guided by specific milestones at 4, 8, and 12 weeks after surgery. Following these protocols reduces the risk of complications and increases the success of the procedure.

In our experience, pet owners who closely follow post-operative instructions often see their dogs recover faster and with fewer challenges.

Myth 5 - TPLO Surgery Carries Significant Risks

One of the most common worries about TPLO surgery is the belief that it carries significant risks. While no surgery is completely without risk, advancements in veterinary medicine have greatly reduced complications, making TPLO surgery a safe and effective option. Improved surgical techniques, advanced tools, and strict cleanliness protocols have significantly improved outcomes for dogs.

To further reduce risks like bacterial contamination and biofilm formation, many surgeons use solutions such as Simini Protect Lavage. This innovative surgical lavage keeps the operating area clean by actively removing contaminants, reducing bacteria, and preventing complications that could slow recovery. By using these advancements, we can confidently provide safer procedures with excellent results.

Myth 6 - Postoperative Pain is Severe

It is a misconception that dogs experience severe pain after TPLO surgery. Postoperative pain is carefully managed using a multimodal approach to ensure patients remain comfortable throughout their recovery. We use a combination of pain-relief methods, including non-steroidal anti-inflammatory drugs (NSAIDs), local anesthetics, and sometimes opioids for short-term relief.

In our practice, postoperative care goes beyond just managing pain. Regular follow-ups, client education, and personalized recovery plans ensure that both the dog and their family feel supported at every stage. With these measures in place, most patients recover comfortably and return to normal activities within the expected timeframe.

Myth 7 - TPLO Surgery is Unreasonably Expensive

A common concern among pet owners is that TPLO surgery is too expensive. While the initial cost of TPLO surgery can range from $3,000 to $6,000, it's important to consider the benefits it offers for a dog's long-term mobility and quality of life. Compared to other procedures like the lateral suture technique, which may cost less initially (around $1,000 to $2,500), TPLO provides much better results, especially for active dogs or those with complete cranial cruciate ligament (CCL) tears.

The cost reflects the procedure's complexity, the surgeon's expertise, and the use of advanced tools. Unlike less durable options that may cause complications or require additional surgeries, TPLO ensures long-term joint stability, slows arthritis, and helps dogs return to an active, pain-free life. Therefore, TPLO is a cost-effective investment in your dog's health and happiness.

Proactive Steps to Ensure a Successful TPLO Surgery

Ensuring a successful outcome from TPLO surgery requires proactive steps and careful attention. Here are the key measures we recommend to pet owners:

Follow Post-Operative Care Instructions

It's crucial to follow the post-surgery care plan provided by your veterinary team. This usually includes managing your pet's activity levels, checking the surgical site for signs of infection, and attending scheduled follow-up appointments. Being consistent and attentive during recovery is essential for optimal healing.

Prevent Infections with Proper Wound Care

Preventing infections is vital for a smooth recovery. If your vet surgeon has used advanced solutions like Simini Protect Lavage during surgery, it can greatly reduce the risk of bacterial contamination and biofilm formation. At home, regularly inspect and clean the incision site as instructed by your veterinarian.

Manage the Dog’s Activity Level During Recovery

Limiting your dog’s physical activity during the first few weeks after surgery is crucial. Keep movement to short, supervised leash walks and avoid running, jumping, or climbing stairs. Gradually reintroduce activity under your veterinarian’s guidance to ensure your dog rebuilds strength safely without risking the surgical repair.

Conclusion

Misconceptions about TPLO surgery can cause unnecessary fear and hesitation, stopping dogs from getting the care they need. By addressing these myths with evidence-based facts, we aim to empower pet owners and professionals to make informed decisions.

Advancements in surgical practices have greatly improved outcomes, reducing risks and enhancing recovery. TPLO surgery continues to be a reliable and effective option for dogs of all sizes and activity levels, offering a path to a pain-free, active life. Always consult your veterinarian for personalized guidance tailored to your dog’s specific needs.

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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!

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TPLO surgery is a common procedure to repair a torn cranial cruciate ligament (CCL) in dogs. This surgery stabilizes the knee joint, allowing dogs to regain mobility and reduce pain. Understanding the cost of TPLO surgery helps pet owners prepare financially for their dog's treatment.

Costs vary widely based on location, surgeon experience, diagnostic tests, dog size, implants used, and post-surgery rehabilitation. In San Diego, this article covers typical price ranges, what is included or excluded, key cost drivers, and tips for pet owners.

Typical TPLO Surgery Cost in San Diego

Prices for TPLO surgery in San Diego vary depending on the clinic, surgeon expertise, and the size of your dog. Each factor influences the final cost significantly.

• Low estimate in San Diego — Some veterinary clinics offer TPLO surgery starting around $3,500. These lower prices may reflect less experienced surgeons or fewer included services. While affordable, they might not cover extensive diagnostics or advanced implants, potentially affecting outcomes.
• Average cost range in San Diego — Most pet owners pay between $4,500 and $5,500 for TPLO surgery. This range typically includes surgery by experienced veterinarians, standard implants, and basic post-operative care. It reflects the standard level of service and quality expected in the city.
• High-end TPLO specialists in San Diego — Premium clinics with board-certified surgeons and advanced surgical technology can charge $6,000 or more. These facilities often provide comprehensive diagnostics, titanium implants, and extensive rehabilitation support, ensuring the highest care standards.

What the Cost Usually Covers

TPLO surgery packages generally include several key components essential for a successful outcome. Knowing what is covered helps owners understand the value of their investment.

• Surgery itself — The core of the cost is the surgical procedure, which involves cutting and rotating the tibial plateau to stabilize the knee. This complex operation requires specialized skills and equipment, justifying its significant price.
• Anaesthesia + monitoring — Safe anaesthesia administration and continuous monitoring during surgery are critical. These services ensure your dog remains pain-free and stable, adding to the overall cost but essential for safety.
• Implants/plates — Stainless steel or titanium plates and screws are used to hold the bone in place. Titanium implants are more expensive but offer better biocompatibility and durability, influencing the total price.
• Post-op care and follow-up exams — After surgery, follow-up visits and basic wound care are typically included. These ensure proper healing and early detection of complications, which is vital for recovery.

What Might Not Be Included

Some costs related to TPLO surgery are often overlooked by pet owners. Being aware of these helps avoid unexpected expenses.

• Pre-surgical diagnostics — X-rays, blood tests, and other diagnostics before surgery may be billed separately. These tests assess your dog's overall health and surgical suitability.
• Post-surgical rehab therapy — Physical therapy or hydrotherapy sessions after surgery usually cost extra. These services improve recovery speed and joint function but are not always included in the initial quote. For more details, see TPLO recovery tips.
• Medications beyond standard pain control — Additional medications for infection, inflammation, or other complications may add to the total cost. These are often prescribed after surgery as needed.
• Additional cost if both legs need surgery — If your dog requires TPLO on both knees, expect roughly double the cost. Some clinics may offer package discounts, but this is a significant financial consideration.

Key Cost Drivers in San Diego

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

• Dog size/weight — Larger dogs require bigger implants and longer surgery times, increasing costs. Smaller dogs often have lower fees due to simpler procedures.
• General vet vs board-certified surgeon — Board-certified surgeons bring specialized expertise and may charge more. General practitioners might offer lower prices but with varying experience levels.
• City living costs + overhead in San Diego — Higher rent, staff wages, and operational expenses in San Diego contribute to increased veterinary fees compared to smaller cities.
• Implant brand and surgical technology used — Clinics using premium implant brands or advanced surgical tools may charge more, reflecting higher quality materials and outcomes.
• Complication or infection risk — Cases with higher risk or complications require additional care and monitoring, raising the overall cost of treatment.

Tips for Pet Owners in San Diego

Careful financial planning and research can help you manage TPLO surgery costs effectively. Here are some helpful tips for San Diego pet owners.

• Ask for a detailed itemised estimate — Request a breakdown of all costs before surgery. This helps you understand what you are paying for and avoid surprises.
• Clarify if quote is for one leg or both — Confirm whether the price covers surgery on one knee or both. This is crucial if your dog has bilateral injuries.
• Explore pet insurance or financing options — Consider pet insurance plans that cover orthopedic surgery or financing programs offered by clinics to spread out payments. Learn more about pet insurance and TPLO coverage.
• Compare multiple clinics and ask about success rates — Don’t settle on the first quote. Comparing clinics helps you find the best balance of cost and quality. Ask about surgeon experience and patient outcomes.
• Ask about rehab or physiotherapy packages — Some clinics offer bundled rehab services that can save money and improve recovery. Inquire about these options and their benefits. See also physical therapy after TPLO.

Conclusion

TPLO surgery in San Diego is a significant financial commitment with costs varying widely based on many factors. Planning ahead and understanding what influences pricing can help pet owners avoid unexpected expenses and ensure quality care for their dogs.

Comparing detailed quotes and confirming inclusions before choosing a clinic is essential. This approach supports informed decisions and better outcomes for your pet’s health and your budget.

Frequently Asked Questions

How much does TPLO surgery cost in San Diego?

TPLO surgery in San Diego typically costs between $3,500 and $6,500. The exact price depends on the clinic, surgeon experience, dog size, and included services.

Is TPLO worth the cost for dogs with CCL tears?

Yes, TPLO is often considered the best surgical option for CCL tears, providing improved joint stability and better long-term mobility compared to other treatments.

Can pet insurance cover TPLO surgery in San Diego?

Many pet insurance plans cover TPLO surgery, but coverage varies. It’s important to check your policy details and pre-authorization requirements before surgery.

How do I know if a TPLO quote is reasonable?

A reasonable TPLO quote includes detailed cost breakdowns, covers essential services, and aligns with local market rates. Comparing multiple estimates helps identify fair pricing.

TPLO (Tibial Plateau Leveling Osteotomy) surgery is a common procedure to stabilize a dog's knee after a cranial cruciate ligament (CCL) rupture. It involves cutting and repositioning the tibia to reduce strain on the ligament, allowing for better joint function. Like any surgery, TPLO has a risk of complications, with incision infections being a primary concern.

Infections can happen due to bacterial contamination during surgery, improper post-op care, excessive licking or chewing of the incision, or underlying conditions like diabetes or a weakened immune system. Signs of infection include redness, swelling, warmth, discharge, and delayed healing.

The risk of infection after TPLO is relatively low, occurring in about 3-10% of cases. Factors like surgical technique, sterile conditions, and strict post-operative management greatly affect the outcome. Early detection and quick treatment with antibiotics and wound care are crucial to prevent complications and ensure a successful recovery.

Symptoms and Warning Signs of TPLO Incision Infection

Recognizing the symptoms of an infection early is crucial for preventing complications after TPLO (Tibial Plateau Leveling Osteotomy) surgery. Infections can range from mild to severe, potentially affecting healing and the long-term success of the procedure. Understanding the difference between early and advanced signs can help ensure timely intervention.

Early Signs of Infection

In the initial stages, an infection may present with mild symptoms that can sometimes be mistaken for normal healing. These include:

• Redness and swelling around the incision site, which may be slightly warm to the touch.
• Mild pain or tenderness, which persists beyond the expected post-surgical discomfort.
• Clear or slightly yellow discharge, which may indicate the presence of bacteria.

If detected at this stage, infections are often manageable with topical treatments, antibiotics, and proper wound care.

Advanced Signs of Infection

As an infection worsens, more severe symptoms may develop, indicating deeper tissue involvement and potential systemic infection. These include:

• Thick, pus-like discharge from the incision, often accompanied by a foul odor.
• Significant swelling and warmth, which may extend beyond the incision area.
• Fever and lethargy, as the body mounts an immune response.
• Increased lameness or reluctance to bear weight, signaling pain or joint involvement.

Advanced infections require urgent veterinary care, as untreated cases can lead to delayed healing, implant complications, or systemic illness. Immediate intervention, such as antibiotics, wound debridement, or even surgical revision, may be necessary.

Monitoring the incision closely in the weeks following TPLO surgery is essential. Any changes in the wound’s appearance, excessive discomfort, or behavioral changes in your dog should be reported to a veterinarian promptly to prevent complications.

Causes of TPLO Incision Infection

A TPLO (Tibial Plateau Leveling Osteotomy) incision infection can occur due to various factors, either during the surgery or in the post-operative recovery period. Identifying and minimizing these risks is essential for ensuring a smooth healing process.

Bacterial Contamination During or After Surgery

Despite strict sterile protocols, bacteria can sometimes enter the surgical site during the procedure. This can happen due to contamination from the skin, surgical instruments, or even the surrounding environment. Post-operatively, improper wound care or exposure to unclean surfaces can introduce bacteria, increasing infection risk.

Poor Post-Op Wound Care

Proper post-operative care is critical to prevent infection. Failure to keep the incision clean and dry, skipping prescribed antibiotics, or neglecting follow-up visits can allow bacteria to proliferate. Owners must follow all veterinary instructions carefully, including cleaning protocols and medication administration.

Licking or Chewing the Incision Site

Dogs instinctively lick their wounds, which can introduce bacteria from their mouths into the incision. Excessive licking or chewing can also cause trauma to the site, delaying healing. The use of an Elizabethan collar (E-collar) or medical pet shirt is essential to prevent self-inflicted wound contamination.

Moisture Buildup Around the Incision

A damp environment around the incision can promote bacterial growth. Moisture can accumulate from bathing, wet bedding, or excessive sweating, making it essential to keep the area dry until fully healed.

Underlying Health Conditions

Dogs with pre-existing conditions such as diabetes, Cushing’s disease, or immune disorders have a higher risk of infection due to impaired wound healing. Such cases require extra vigilance in monitoring for signs of infection.

Implants and Their Role in Infection Risk

The metal implants used in TPLO surgery can serve as a surface for bacterial adhesion. If bacteria form a biofilm on the implant, it can lead to a deep-seated infection that may require implant removal or surgical revision.

To minimize this risk, many surgeons use Simini Protect Lavage, a non-antibiotic surgical lavage designed to reduce bacterial contamination and prevent biofilm formation. Unlike traditional solutions, Simini Protect Lavage actively disrupts bacterial adhesion, helping to lower infection risks without contributing to antibiotic resistance. Its use in TPLO and other orthopedic procedures has shown promising results in enhancing post-surgical outcomes.

Preventing infection requires a combination of strict surgical protocols, diligent post-op care, and close monitoring of the incision site for any signs of complications.

How TPLO Infections Are Diagnosed

Diagnosing a TPLO incision infection requires a thorough evaluation by a veterinarian to determine the severity and appropriate treatment plan. Early detection is key to preventing complications such as delayed healing, deep tissue infections, or implant failure.

Physical Examination

The first step in diagnosing an infection is a detailed physical examination of the incision site. The veterinarian will check for common signs of infection, including:

• Redness and swelling around the incision.
• Abnormal discharge (pus, thick yellow fluid, or foul-smelling secretions).
• Increased warmth in the surrounding tissue.
• Pain response when the area is gently palpated.
• Signs of systemic illness, such as fever or lethargy.

Diagnostic Tests

If an infection is suspected, further diagnostic tests help confirm the presence and extent of the infection.

• Wound Culture and Sensitivity Test - A swab of the incision site is collected to identify the specific bacterial strain causing the infection. This helps determine the most effective antibiotic treatment.
• Complete Blood Count (CBC) - Blood tests check for elevated white blood cell counts (WBCs), which indicate an immune response to infection. Other markers, such as increased neutrophils, may suggest a bacterial infection.
• X-rays or Advanced Imaging - If the infection has progressed or involves the surgical implants, X-rays or ultrasound imaging may be used to assess deep tissue involvement. In some cases, an infection can lead to osteomyelitis (bone infection) or implant loosening, requiring further surgical intervention.

Prompt and accurate diagnosis ensures that treatment is initiated quickly, reducing the risk of complications and improving the chances of a full recovery.

Potential Complications of an Untreated TPLO Incision Infection

If a TPLO incision infection is left untreated, it can lead to serious complications that may jeopardize the success of the surgery and the dog’s long-term mobility. Early intervention is crucial to prevent these risks.

Implant Failure and the Need for Removal or Revision Surgery

TPLO surgery involves the placement of metal implants (plates and screws) to stabilize the tibia. If bacteria colonize the implant, they can form a biofilm, making the infection difficult to treat with antibiotics alone. This can lead to implant loosening or failure, requiring removal or revision surgery to replace the affected hardware. A second surgery increases recovery time and risk of further complications.

Read more about - Signs of TPLO Failure in Dogs & When to See a Vet

Deep Bone Infection (Osteomyelitis)

When an infection spreads beyond the incision site into the bone tissue, it can cause osteomyelitis, a severe and persistent infection. Bone infections are challenging to treat and often require long-term antibiotics, surgical debridement, or even partial bone removal in extreme cases. Osteomyelitis can significantly delay healing and may compromise limb function.

Delayed Healing, Prolonged Pain, and Lameness

An untreated infection slows down wound healing, leading to persistent inflammation, chronic pain, and prolonged lameness. Infections interfere with the body’s natural healing process, increasing the risk of poor scar formation and weakening the stability of the joint. This can result in long-term mobility issues, affecting the dog’s quality of life.

Risk of Systemic Infection (Sepsis)

If bacteria enter the bloodstream, the infection can become systemic, leading to sepsis, a life-threatening condition. Sepsis causes widespread inflammation, organ dysfunction, and severe illness. Immediate hospitalization, intravenous antibiotics, and aggressive supportive care are required in such cases.

Preventing complications requires early diagnosis, strict post-op care, and immediate treatment of any signs of infection to ensure a smooth recovery.

Treatment Options for TPLO Incision Infections

A TPLO incision infection requires prompt and appropriate treatment to prevent complications and ensure proper healing. The treatment plan depends on the severity of the infection, the presence of bacterial colonization on the implants, and the dog’s overall health.

Antibiotic Therapy

Antibiotics are the first line of treatment for a TPLO incision infection. The choice of antibiotic depends on wound culture and sensitivity testing, ensuring effective targeting of the bacteria.

• Oral antibiotics (e.g., cephalexin, clindamycin, or enrofloxacin) are commonly prescribed for mild to moderate infections.
• Topical antibiotics (e.g., silver sulfadiazine or mupirocin) may be used to manage surface-level infections.
• If the infection is deep-seated or spreading, intravenous (IV) antibiotics may be required for better systemic control.

Wound Cleaning and Care

Proper wound care helps clear bacteria and promote healing. This includes:

• Cleaning the incision with veterinary-approved antiseptic solutions (chlorhexidine or diluted povidone-iodine).
• Avoiding excessive moisture buildup around the wound.
• Preventing licking or chewing with an Elizabethan collar (E-collar) or medical pet shirt.
• Ensuring the bandage (if used) is clean and changed as recommended by the veterinarian.

Pain Management

Infections cause inflammation and discomfort, so pain relief is an important part of treatment.

• Non-steroidal anti-inflammatory drugs (NSAIDs) such as carprofen or meloxicam may be prescribed to reduce pain and swelling.
• If severe discomfort persists, stronger pain relievers may be necessary.

Surgical Intervention

For infections that do not respond to antibiotics or involve the implants, surgical intervention may be needed:

• Flushing and debridement – The vet may clean and remove infected tissue under anesthesia to prevent further bacterial spread.
• Implant removal or revision – If bacteria have colonized the TPLO plate and screws, implant removal may be necessary, followed by a prolonged course of antibiotics to clear the infection.

Timely and appropriate treatment is essential to prevent long-term complications and ensure a smooth recovery. Close veterinary supervision and adherence to post-op care instructions significantly improve outcomes.

When to Call Your Veterinarian

Recognizing the signs of a TPLO incision infection early and seeking veterinary care promptly can prevent serious complications. Certain symptoms indicate the need for immediate medical attention:

• Excessive swelling, redness, or warmth around the incision.
• Thick, pus-like discharge or a foul odor from the wound.
• Persistent pain or worsening lameness beyond the expected healing period.
• Fever, lethargy, or loss of appetite, which may indicate a systemic infection.
• Sudden changes in behavior, such as reluctance to move or increased sensitivity around the incision.

How Quickly Should an Infection Be Addressed?

If you notice any signs of infection, contact your veterinarian immediately. Mild infections caught early may be treated with antibiotics and wound care, but delays in treatment can lead to deeper infections, increasing the risk of implant failure or systemic illness.

What to Expect During a Vet Visit

Your veterinarian will:

• Perform a physical examination of the incision.
• Conduct diagnostic tests (wound cultures, blood tests, or X-rays) if needed.
• Prescribe antibiotics or pain medication based on the infection’s severity.
• Recommend wound cleaning protocols or, in severe cases, surgical intervention to remove infected tissue or implants.

Prompt veterinary care ensures a smoother recovery and reduces the risk of long-term complications.

Preventing TPLO Incision Infections

Preventing infection after TPLO surgery is crucial for ensuring a smooth recovery and avoiding complications. Proper post-operative care significantly reduces the risk of infection and promotes faster healing.

Proper At-Home Wound Care Routine

A clean and well-maintained incision site is essential for preventing bacterial growth. Follow these steps to ensure proper wound care:

• Inspect the incision daily for redness, swelling, or discharge.
• Use vet-approved antiseptic solutions if cleaning is necessary.
• Avoid touching the wound with unclean hands to prevent contamination.
• Follow the prescribed antibiotic regimen to eliminate any potential bacterial infections.

Importance of E-Collars to Prevent Licking

Dogs instinctively lick wounds, but their mouths contain bacteria that can introduce infection.

• An Elizabethan collar (E-collar) or medical pet shirt should be used at all times until the incision fully heals.
• Even brief periods of licking can introduce bacteria, delaying healing and increasing infection risk.

Keeping the Incision Dry and Clean

Moisture creates an ideal environment for bacterial growth, so it’s important to:

• Prevent the incision from getting wet—no bathing or swimming until cleared by the vet.
• Keep the bedding clean and dry to avoid contamination.
• If the incision gets wet, gently pat it dry with a clean, soft cloth.

Following Post-Op Care Instructions Strictly

Veterinary post-op guidelines should be followed precisely, including:

• Restricted activity to prevent excessive movement that could stress the incision.
• Proper medication schedules, including antibiotics and pain relievers.
• Scheduled follow-up visits to monitor healing progress.

Monitoring for Any Early Signs of Infection

Even with proper care, infections can still develop. Watch for:

• Redness, swelling, or discharge from the incision.
• Excessive licking or signs of discomfort around the area.
• Changes in behavior, such as lethargy or reluctance to move.

By taking proactive steps in at-home care, pet owners can significantly reduce the chances of post-operative infections and support a successful TPLO recovery.

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Read more about:

• TPLO Failure Symptoms
• TPLO Surgery Cost Guide
• Long-Term Outcomes of TPLO Surgery
• Common Causes of Limping in Dogs Post-TPLO Surgery

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Conclusion

A TPLO incision infection can slow down healing and cause serious problems if not treated. It's important to notice early signs of infection, like redness, swelling, discharge, or increased pain, to prevent further issues. Quick veterinary care can greatly improve recovery results.

Proper post-operative wound care, such as keeping the incision clean and dry, using an E-collar to prevent licking, and following all prescribed medications, helps reduce the risk of infection. Watching for any changes in the incision site or behavior allows for early action if needed.

If an infection happens, quick diagnosis and treatment with antibiotics, wound care, or surgery ensure the best recovery possible. By being watchful and proactive in post-op care, pet owners can support a smooth healing process and help their dog regain mobility safely.

FAQs

How do I know if my TPLO incision is infected?

A TPLO incision infection may show signs such as redness, swelling, warmth, and abnormal discharge (yellow, pus-like, or foul-smelling fluid). The incision may become painful, and your dog might show increased licking, lethargy, fever, or reluctance to walk. If you notice any of these symptoms, contact your veterinarian immediately for evaluation and treatment.

How do you treat a TPLO infection?

Treatment depends on the severity of the infection. Mild cases may be managed with oral antibiotics and wound cleaning, while severe infections might require intravenous antibiotics, wound flushing, or even implant removal if bacteria form a biofilm. Pain management and restricted movement are also essential for recovery. Early treatment ensures the best outcomes and prevents complications like deep bone infections or implant failure.

What to do if my dog's incision is infected?

If you suspect an infection, contact your veterinarian immediately. Avoid cleaning the wound with unapproved solutions, and prevent your dog from licking the incision by using an E-collar or protective covering. The vet may prescribe antibiotics, pain relief, or wound debridement depending on the infection's severity. Delaying treatment can worsen the infection and lead to complications.

How common is infection after TPLO surgery?

Infections after TPLO surgery are relatively uncommon, occurring in about 3-10% of cases. The risk increases with factors like poor post-op care, excessive licking, moisture exposure, or underlying health issues such as diabetes or immune suppression. Following strict wound care protocols and monitoring for early signs of infection significantly reduces the risk.

What is the infection rate for TPLO?

The infection rate for TPLO surgery ranges from 3-10%, depending on factors such as surgical technique, sterility, and post-operative care. Using advanced infection prevention methods, such as Simini Protect Lavage, proper antibiotic use, and strict wound monitoring, can help minimize infection risks. Prompt intervention at the first sign of infection is essential.

What does the start of an infected incision look like?

The early signs of an infected TPLO incision include increased redness, mild swelling, warmth, and clear to yellow discharge. The area may become more painful than expected during normal healing, and your dog may lick or chew the incision excessively. If left untreated, symptoms can worsen, leading to pus formation, odor, and systemic illness. Any suspicious changes should be evaluated by a veterinarian immediately.

TPLO (Tibial Plateau Leveling Osteotomy) is a common surgery used to treat cranial cruciate ligament (CCL) injuries in dogs. It involves cutting and repositioning the tibia to stabilize the knee joint, reducing the need for the damaged ligament. Although TPLO has a high success rate, complications can still occur even with proper surgical technique.

Complications can arise due to factors like a dog's age, weight, overall health, and how well post-operative care guidelines are followed. Older or overweight dogs are at higher risk for delayed healing and implant failure because of increased strain on the joint. Inadequate rest, early activity, or infections can also cause setbacks.

Even with precise bone healing, some dogs may experience swelling, lameness, or implant-related issues. Being aware of these risks helps ensure timely intervention and optimal recovery. Proper monitoring, limited activity, and follow-up evaluations are crucial in reducing post-surgical complications.

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TL;DR: Possible Complications After TPLO Surgery

• Immediate complications: Infection, hemorrhage, implant loosening, excessive swelling, or premature suture removal.
• Mid-term complications: Delayed bone healing, seroma formation, nerve damage, tibial tuberosity fractures.
• Long-term complications: Patellar luxation, arthritis, meniscal injuries, persistent lameness, patellar ligament thickening.
• Severe complications: Osteomyelitis (bone infection), implant failure, chronic pain, or non-union of the bone.

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Immediate Post-Surgical Complications (First Few Days to Weeks After Surgery)

In the initial days after TPLO surgery, dogs are at risk for complications that can slow healing and cause discomfort. Careful monitoring and early intervention are crucial to ensuring a smooth recovery.

1. Infection at the Surgical Site

Infection is one of the most common early complications after TPLO surgery. It can happen if bacteria enter the surgical site, delaying healing and potentially affecting the implant.

Signs of infection include redness, swelling, warmth around the incision, pus-like discharge, an unpleasant odor, and increased pain or tenderness. Some dogs may also develop a fever or show signs of discomfort, such as excessive licking or reluctance to put weight on the affected leg.

Causes of infection include poor hygiene, contamination during or after surgery, excessive licking of the incision, and improper wound care. Dogs that lick or chew at their stitches introduce bacteria, increasing the risk of infection. Environmental factors, like a dirty bedding area, can also lead to bacterial growth.

Treatment options depend on how severe the infection is. Mild cases may be managed with oral antibiotics and regular wound cleaning using an antiseptic solution. More severe infections, especially those affecting deep tissues or the implant, require veterinary care.

This may include culture testing to identify the bacteria and, in rare cases, surgical removal of infected tissue. Preventive measures, such as using an Elizabethan collar (E-collar) and ensuring proper wound care, are essential to reducing the risk of infection.

2. Bone Infection (Osteomyelitis)

Osteomyelitis is a serious bone infection that affects deeper bone tissue and can compromise the TPLO implant. Unlike surface infections, osteomyelitis can cause long-lasting inflammation, bone damage, and implant failure.

Symptoms include ongoing swelling, increased pain, fever, pus draining from the incision, and slow healing. Affected dogs may become tired and unwilling to use the operated leg. In chronic cases, the infection can spread, causing a more widespread illness.

Risk factors include contamination during surgery, bacteria from an infected wound, or infections related to the implant. Dogs with weak immune systems or those in unclean environments after surgery are at higher risk.

Treatment involves strong antibiotic therapy, often based on bacterial culture results. In severe cases, surgery may be needed to remove infected bone tissue. If the implant is affected, it might need to be removed and replaced once the infection is under control. Early detection and strict hygiene are key to preventing osteomyelitis.

3. Implant Issues (Loosening, Breaking, or Failure)

Implant complications happen when the TPLO plate or screws don't work properly, causing instability in the knee joint. These issues can occur due to too much movement, poor implant placement, or infections that weaken the bone connection.

Signs of implant failure include ongoing limping, pain, swelling around the implant site, and unusual clicking or grinding sounds from the joint. In severe cases, the implant might shift, leading to bone misalignment. Dogs that suddenly become lame after surgery should be checked right away.

Causes include too much activity after surgery, improper bone healing, and mechanical stress on the implant. Infections can also weaken the bone and screws, increasing the chance of failure. Overweight dogs are at higher risk due to more pressure on the joint.

Possible corrective actions depend on how severe the issue is. Minor loosening might be managed with limited activity, while severe cases could need revision surgery to replace or reposition the implant. If there's an infection, the implant may need to be removed, followed by antibiotic treatment before placing a new implant.

4. Premature Suture Removal by the Dog

Dogs often lick or chew their sutures due to discomfort, irritation, or boredom. However, removing stitches too soon can reopen the surgical site, exposing tissues to infection and delaying healing.

Consequences of removing sutures include the wound reopening, a higher risk of infection, and excessive scarring. In severe cases, exposed tissues may dry out or become contaminated, requiring more surgery. If deeper sutures are disturbed, healing can be significantly delayed.

Preventive measures include using an Elizabethan collar (E-collar) to stop licking and chewing. Bandaging might help, but it must be done carefully to avoid moisture buildup, which can lead to bacterial growth. Supervision is crucial, especially in the first two weeks after surgery.

Providing distractions, like puzzle toys or chew treats, can help keep dogs from focusing on their incision. If stitches are removed too soon, a veterinarian should assess the wound immediately to decide if re-suturing or additional wound care is needed.

5. Hemorrhage During or After Surgery

Hemorrhage, or excessive bleeding, can happen during or after TPLO surgery due to blood vessel injury, clotting disorders, or improper post-operative care. While some mild bruising is normal, significant bleeding is a serious issue that needs immediate attention.

Symptoms of post-surgical hemorrhage include excessive blood oozing from the incision, swelling or bruising that gets worse over time, pale gums, rapid heart rate, and lethargy. In severe cases, internal bleeding may cause a swollen abdomen or breathing difficulties.

Causes include surgical trauma to blood vessels, clotting disorders like Von Willebrand’s disease, or post-operative strain on the incision site. Certain medications, such as NSAIDs and steroids, can also affect the ability to clot.

When to seek emergency vet care: If bleeding continues for more than a few hours, if the wound reopens, or if the dog shows signs of weakness and pale gums, immediate veterinary care is crucial. Treatment may involve pressure bandaging, fluid therapy, or surgical intervention to control internal bleeding. Quick action can prevent life-threatening complications and improve recovery outcomes.

Mid-Term Healing Complications (Weeks to Months Post-Surgery)

As the initial healing phase progresses, some dogs may experience complications that affect recovery in the weeks following surgery. Monitoring for persistent swelling, delayed healing, or mobility issues is essential to prevent long-term problems.

6. Swelling and Bruising at the Incision Site

Some swelling and bruising are expected after TPLO surgery as part of the body's normal healing process. Mild swelling around the incision site, along with light bruising, usually goes away within two weeks.

Concerning signs include swelling that doesn't go away or gets worse beyond the expected recovery time, extreme discoloration (deep purple or black bruising), excessive warmth, and increasing pain. These could indicate an infection, hematoma (blood accumulation), or poor circulation.

Managing swelling effectively requires early action. Cold therapy, like applying an ice pack wrapped in a towel for 10–15 minutes several times a day during the first 72 hours after surgery, helps reduce inflammation. After this initial period, warm compresses can be used to promote circulation. Anti-inflammatory medications, if prescribed by a veterinarian, can also help reduce swelling.

Strict rest and avoiding unnecessary movement help prevent further irritation. If swelling worsens or doesn't improve, a veterinarian should check the incision site to rule out complications such as infection or fluid buildup.

7. Seroma Formation (Fluid Accumulation)

A seroma is a fluid buildup under the skin near the surgical site. It can occur due to too much movement, surgical trauma, or minor irritation, which causes leakage from blood vessels and lymphatic tissues. Unlike an infection, a seroma is usually not painful and doesn't show redness or discharge.

It's important to tell the difference between normal swelling and a problematic seroma. A small, soft, and flexible swelling that doesn't cause discomfort is often a harmless seroma and may go away on its own. However, if seromas are large or don't go away, especially if they grow or become painful, a veterinarian should check them. Signs of infection, like warmth, redness, or pus, need immediate attention.

Treatment options depend on how severe the seroma is. Small seromas are usually managed by monitoring and using compression therapy. Reducing excessive movement can help decrease fluid buildup. Large seromas might need to be drained with a sterile needle.

If fluid continues to build up, a drain may be placed to stop further accumulation. Preventing too much movement and ensuring proper rest after surgery can help reduce the risk of seroma formation.

8. Nerve Damage Leading to Limb Numbness

Nerve damage after TPLO surgery is rare but can happen due to surgical manipulation near major nerve pathways. The peroneal nerve, which controls foot and lower limb function, is most at risk during tibial surgery. In some cases, swelling after surgery can also temporarily affect nerve function.

Symptoms of nerve damage include dragging the paw (knuckling), reduced sensation in the affected leg, lack of response to touch, or an unusual way of walking. Dogs may seem unable to place their foot properly on the ground. In severe cases, they may develop muscle wasting due to not using the limb for a long time.

Prognosis and recovery depend on how severe the nerve injury is. Mild nerve compression from swelling often gets better within weeks as the swelling goes down. Physical therapy, gentle massage, and controlled movement exercises can help with nerve recovery.

Severe nerve damage, such as a completely severed nerve, has a poorer outlook and may require assistive devices or surgery. Close monitoring and early rehabilitation improve the chances of functional recovery.

9. Delayed Bone Healing or Non-Union

Bone healing after TPLO surgery usually takes 8–12 weeks, but sometimes healing is delayed or does not happen properly (non-union). Several factors can affect bone healing, including poor nutrition, too much activity, infection, or improper implant placement.

Signs of delayed healing include prolonged limping, ongoing swelling around the surgical site, and discomfort that lasts beyond the expected recovery time. X-rays may show incomplete bone fusion at the osteotomy site, indicating slowed healing. If not addressed, delayed healing can lead to implant failure or instability in the knee joint.

Treatment approaches focus on encouraging bone regrowth. A veterinarian may suggest calcium and vitamin D supplements to support bone health. Strict activity restriction is essential to prevent too much movement at the healing site. If an infection is suspected, antibiotics are prescribed.

In severe cases, additional surgery may be needed to replace hardware, perform a bone graft, or stimulate healing with advanced techniques like bone-stimulating proteins. Early intervention increases the chances of full recovery and proper joint stabilization.

10. Tibial Tuberosity Fractures

A tibial tuberosity fracture is a rare but serious issue that can happen after TPLO surgery. The tibial tuberosity is the bony bump where the patellar tendon attaches, and too much strain can cause it to fracture, especially in large, active dogs or those not properly cared for after surgery.

Symptoms of a tibial tuberosity fracture include sudden pain, reluctance to put weight on the leg, localized swelling, and knee joint instability. Some dogs may walk abnormally or have trouble extending their leg. This fracture is usually diagnosed with X-rays, which show a break near the TPLO osteotomy site.

Treatment depends on the fracture's severity. Minor fractures may heal with strict rest, pain management, and controlled rehabilitation. More severe cases require surgery, which may involve adding screws or wire to stabilize the fracture.

Proper post-operative care, including limited movement and weight management, is crucial to prevent tibial tuberosity fractures. Early detection and appropriate treatment improve recovery and help restore normal joint function.

Long-Term Complications (Months to Years Post-Surgery)

While most dogs recover well after TPLO surgery, some may develop complications months or even years later. These long-term issues can impact mobility and joint health, requiring ongoing management and veterinary care.

11. Patellar Luxation (Kneecap Dislocation)

TPLO surgery changes how the knee works, which can sometimes affect the position of the patella (kneecap). While TPLO stabilizes the knee joint by adjusting the tibial plateau, it may lead to patellar instability, especially in small-breed dogs or those with existing knee issues.

Symptoms of patellar luxation include a skipping gait, where the dog briefly lifts the leg before walking normally again. There may also be sudden pain, occasional limping, or trouble putting weight on the leg. Some dogs might be hesitant to jump or do high-impact activities.

Treatment options depend on how severe the condition is. Mild cases can be managed with physical therapy, exercises to strengthen muscles, and weight management to lessen stress on the knee.

In severe cases, where the patella often dislocates and causes discomfort, surgery may be needed to realign the patellar groove or tighten the soft tissues around the knee. Long-term monitoring and controlled exercise can help reduce the risk of further joint instability.

12. Patellar Ligament Thickening or Desmopathy

After TPLO surgery, the patellar ligament (which connects the kneecap to the tibia) may thicken due to increased stress and changes in the tissue as it heals. This condition, known as desmopathy, is a response to the altered mechanics of the knee and may cause discomfort or limit mobility.

How it impacts mobility: Thickened patellar ligaments can lead to stiffness, a reduced range of motion, and occasional lameness. Dogs might have trouble fully extending the knee or feel discomfort when walking on uneven surfaces. In some cases, ligament thickening can contribute to patellar luxation or chronic pain.

Treatment and management focus on reducing inflammation and keeping the joint flexible. Cold laser therapy, controlled exercise, and joint supplements (like glucosamine and chondroitin) may help maintain ligament health.

In severe cases where thickening causes functional problems, physical therapy, anti-inflammatory medications, or, in rare instances, surgery may be necessary. Gradually returning to activity and avoiding high-impact exercises can help minimize stress on the ligament.

13. Meniscal Injury or Tear

The meniscus is a cartilage structure that cushions the knee joint. While TPLO surgery stabilizes the knee, it does not remove the risk of meniscal injuries. Sometimes, leftover instability or stress from implants can cause the meniscus to wear down or tear.

Symptoms of meniscal damage include a clicking or popping sound when the dog moves, occasional or constant lameness, reluctance to use the affected leg, and discomfort when bending the knee. Some dogs may suddenly experience more pain after initially showing signs of recovery.

Treatment options depend on how severe the tear is. Mild cases might be managed with pain relief, joint supplements, and controlled exercise. However, if a meniscal tear causes ongoing pain and instability, surgery is often needed.

This may involve a partial meniscectomy, where the damaged part is removed, or meniscal repair if the cartilage can be saved. Long-term management includes weight control, low-impact exercise, and joint-protective therapies to reduce stress on the knee.

14. Persistent or Recurrent Lameness

While temporary lameness is expected during TPLO recovery, persistent or recurrent lameness months or years after surgery indicates an underlying issue. Some dogs may initially regain function but later experience setbacks.

When lameness is normal vs. a complication: Mild stiffness after long periods of rest or in cold weather is common in post-TPLO dogs, especially as they age. However, continuous limping, favoring one leg, or worsening mobility suggests a complication such as implant issues, nerve damage, or progressive joint disease.

Common causes include implant loosening, nerve irritation, arthritis, or secondary joint problems like patellar luxation or meniscal injury. Improper post-op rehabilitation can also lead to muscle weakness, causing uneven weight distribution.

Rehabilitation options focus on hydrotherapy, physiotherapy, and pain relief through NSAIDs or joint supplements. Weight control is crucial in reducing stress on the knee. For severe cases, advanced pain management options like platelet-rich plasma (PRP) therapy, acupuncture, or even surgical revision may be necessary.

15. Development of Arthritis After Surgery

Even after successful TPLO surgery, some dogs develop arthritis over time due to joint wear and tear. While TPLO improves knee stability, it doesn't prevent degenerative joint disease (DJD), especially in older or previously injured dogs.

Why arthritis develops: Chronic inflammation, ongoing joint stress, or minor imperfections in bone healing can lead to cartilage breakdown. Dogs with previous CCL damage, obesity, or an uneven gait are at higher risk.

Symptoms include joint stiffness, difficulty getting up, reluctance to move, limping, and swelling around the knee. Dogs may struggle with stairs, hesitate before jumping, or feel discomfort after exercise. Symptoms often worsen in cold weather or after long periods of inactivity.

Long-term management focuses on weight control, joint supplements (glucosamine, chondroitin, omega-3s), anti-inflammatory treatments (NSAIDs, corticosteroid injections), and physical therapy. Low-impact activities like swimming or controlled walks can maintain muscle strength while reducing joint stress.

In advanced cases, regenerative therapies such as stem cell treatment or PRP injections may provide relief. Managing arthritis proactively helps maintain mobility and quality of life for years after surgery.

How to Reduce the Risk of TPLO Complications

Minimizing complications after TPLO surgery requires strict post-operative care, proper wound management, and ongoing rehabilitation.

Following veterinary instructions and ensuring a controlled recovery environment significantly improve surgical outcomes.

Strict post-op care

Strict post-op care is essential in preventing implant failure, infections, and delayed healing. Dogs must have limited movement for the first few weeks, avoiding running, jumping, or sudden movements that can strain the surgical site. A crate or confined space ensures controlled rest, while leash-walks allow gradual reintroduction to activity.

Proper wound care and hygiene

Proper wound care and hygiene reduce infection risks. The surgical incision should be checked daily for redness, swelling, or discharge. Using veterinary-recommended antiseptics and preventing licking (via an Elizabethan collar) are key to avoiding contamination.

Many surgeons now use Simini Protect Lavage, a non-antibiotic surgical lavage, to reduce bacterial contamination and biofilm formation, lowering the risk of post-surgical infections.

Rehabilitation and physical therapy

A well-structured rehabilitation plan is essential for restoring mobility, muscle strength, and joint flexibility after TPLO surgery. Early intervention helps prevent stiffness, muscle atrophy, and long-term mobility issues.

Hydrotherapy (underwater treadmill or swimming) provides low-impact exercise, reducing strain on healing joints while strengthening muscles. Passive range-of-motion exercises improve flexibility, while controlled weight-bearing activities help rebuild strength without overloading the surgical site.

Rehabilitation also includes balance exercises, cold laser therapy, and massage therapy, which aid circulation and reduce post-surgical discomfort. A veterinarian or canine rehabilitation specialist can create a customized recovery plan to ensure optimal healing and long-term joint health.

Lastly, early detection improves recovery. Watching for limping, excessive swelling, or behavioral changes helps identify issues before they get worse.

When to Call Your Vet

Recognizing when to seek veterinary care is crucial for preventing serious TPLO complications. Emergency signs that need immediate attention include excessive bleeding, severe swelling, ongoing pain, fever, an open incision, or a sudden inability to bear weight on the operated leg.

Mild symptoms like slight swelling, occasional limping, or minor wound discharge should still be checked if they persist or get worse. Delayed healing or changes in behavior may indicate an underlying issue.

Regular post-op checkups are important for monitoring bone healing, implant stability, and joint function. Early intervention helps prevent complications, ensuring a smooth and successful recovery for your dog.

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Read more about -

• TPLO failure symptoms
• Common causes of limping in dogs post-TPLO surgery
• Before and after TPLO surgery: Dog health & recovery timeline
• TPLO surgery for older dogs: Is it a worthwhile option?

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Conclusion

TPLO surgery is very effective for stabilizing a dog’s knee, but complications can occur without proper post-operative care. Understanding potential risks and taking preventive steps can ensure a smoother recovery.

1. Strict post-op care – Limiting movement, using an E-collar, and following vet instructions help prevent implant failure and infections.
2. Proper wound hygiene – Keeping the incision clean and watching for redness, swelling, or discharge reduces infection risks.
3. Early detection of complications – Signs like persistent limping, fever, or swelling should lead to immediate veterinary evaluation.
4. Rehabilitation and physical therapy – Hydrotherapy and controlled exercises help with muscle recovery and joint flexibility.
5. Regular vet checkups – Routine follow-ups ensure proper bone healing, implant stability, and early complication management.
6. Using advanced surgical solutions – Many surgeons use Simini Protect Lavage to reduce infection risks and improve post-surgical outcomes.
7. Long-term joint health management – Weight control, joint supplements, and arthritis prevention strategies enhance mobility and quality of life.

By staying proactive and working closely with your veterinarian, you can minimize complications and support your dog’s full recovery after TPLO surgery.

FAQs

What are the long-term complications of TPLO surgery?

Long-term complications can include patellar luxation, arthritis, implant failure, meniscal injuries, and persistent lameness. Some dogs may develop patellar ligament thickening or nerve-related mobility issues. While many dogs recover well, maintaining joint health, weight control, and regular vet checkups helps minimize long-term risks.

What to watch for after TPLO surgery?

Monitor for swelling, redness, discharge, excessive pain, fever, or sudden lameness. Signs of complications include persistent limping, wound infection, delayed healing, or implant issues. If the dog refuses to bear weight or shows increased discomfort over time, a veterinary evaluation is necessary to rule out serious post-surgical issues.

What are the mistakes for TPLO?

Common mistakes include allowing too much activity too soon, neglecting wound care, not using an E-collar, missing follow-up visits, and improper rehabilitation. Failing to restrict movement can lead to implant failure, delayed bone healing, or reinjury. Strict adherence to post-op care reduces these risks.

What is the complication rate of TPLO?

The overall complication rate for TPLO surgery ranges from 10-34%, with most being minor issues like swelling or mild infections. Serious complications, such as implant failure, fractures, or osteomyelitis (bone infection), occur in a smaller percentage of cases. Proper post-operative care significantly reduces complication risks.

Do dogs fully recover from TPLO surgery?

Most dogs fully recover within 12-16 weeks and regain normal mobility. With proper rehabilitation, they can return to an active lifestyle, including running and playing. However, some may develop mild stiffness or arthritis later in life. Regular exercise, weight control, and joint supplements help maintain long-term joint health.

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