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Should You Consider Surgery for Grade 2 Medial Luxation?

Should You Consider Surgery for Grade 2 Medial Luxation?

Medial Patellar Luxation

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Owners

Wondering if surgery is needed for Grade 2 medial patellar luxation? Learn when to choose surgery vs. conservative care and what to expect

By 

Sustainable Vet Group

Updated on

July 28, 2025

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Should You Consider Surgery for Grade 2 Medial Luxation?

What Does Grade 2 Medial Patellar Luxation Mean?

Grade 2 medial patellar luxation (MPL) is a moderate form of kneecap instability seen in many dogs, especially small breeds. It means the patella (kneecap) moves out of its groove but can return on its own or with light pressure.

This type of luxation may not always cause pain, but it can affect how your dog walks. Many dogs with Grade 2 MPL show signs like:

  • Occasional limping or skipping in the back leg
  • Sudden lifting of one hind limb for a few steps
  • Clicking or popping sounds from the knee
  • Reluctance to run or jump due to instability

Vets often find Grade 2 MPL during regular exams, even if there are no clear symptoms. The condition may not need surgery right away, but it does require monitoring. Some dogs stay stable for years, while others may slowly worsen to Grade 3.

The decision to treat depends on how often the patella dislocates, how it affects mobility, and whether your dog shows pain. Your vet may suggest rehab, weight control, or surgery depending on how your dog responds to these early signs.

Does Every Dog With Grade 2 MPL Need Surgery?

Not always—many dogs with Grade 2 MPL can live comfortably without surgery.

  • Mild cases often need no surgery
  • Some dogs never show pain or limping
  • Conservative care can keep the joint stable
  • Surgery is usually for dogs with visible signs

If your dog shows no pain and stays active without limping, surgery might not be needed. Some small breeds with mild luxation live normal lives with proper care. The key is to monitor their symptoms closely. If you start noticing signs like hopping, stiffness, or discomfort during walks, it’s time to consider surgery.

Veterinarians often suggest checking the patella every few months, especially during growth. Surgery becomes necessary if there's a risk of worsening or if the dog’s quality of life is affected. But if your dog is symptom-free and active, conservative treatment may be enough to manage Grade 2 MPL safely.

Read more | Signs and Symptoms of Medial Patellar Luxation in Dogs

When Should You Choose Surgery for Grade 2 MPL?

Surgery is recommended when symptoms get worse or the knee becomes unstable.

  • Persistent limping or skipping
  • Pain during activity or joint touch
  • Visible muscle loss in the affected leg
  • Frequent patella dislocation
  • Signs of arthritis on X-rays

When these signs appear, surgery is often the best way to prevent further joint damage. Over time, the repeated movement of the kneecap in and out of place can strain other structures in the knee, including the cruciate ligament. Early surgery reduces this risk and improves long-term comfort.

In many cases, vets recommend operating before Grade 2 becomes Grade 3. Dogs with frequent dislocations are more likely to develop arthritis or suffer from more severe joint problems later. A proactive surgical approach can protect the joint and restore normal function early in life.

When Is Conservative Management a Better Option?

If your dog has no pain and a stable gait, conservative care may be enough.

  • Ideal for dogs with no visible lameness
  • Best for older dogs or those with low activity
  • Requires committed home care and regular vet checks

Conservative treatment focuses on reducing stress on the joint and supporting joint health. This includes maintaining a healthy weight, using joint-friendly diets, and giving supplements like glucosamine and omega-3s. Physical therapy, swimming, and controlled walks help strengthen the muscles that support the knee.

  • Weight control to reduce joint pressure
  • Joint supplements for cartilage health
  • Rehabilitation exercises for strength
  • Vet rechecks every 3 to 6 months

Owners need to be consistent with care, as this approach doesn’t stop the structural problem. However, for mild cases or dogs not showing signs, it can delay or avoid the need for surgery. If symptoms start to appear later, you can always revisit the surgical option with your vet.

Pros and Cons of Surgery vs. Conservative Care

Each option has benefits and limitations, and the right choice depends on your dog’s symptoms and lifestyle.

Surgery Pros

  • Fixes the kneecap alignment permanently
  • Prevents arthritis and further damage
  • High success rate with full recovery

Surgery gives long-term joint stability. Dogs often return to full activity after healing.

Surgery Cons

  • Costly ($1,500–$3,500 depending on location)
  • Needs anesthesia and post-op care
  • Recovery takes 6–12 weeks with rehab

The commitment during recovery can be hard for busy owners.

Conservative Pros

  • Less expensive upfront
  • No surgery or anesthesia risks
  • Can manage symptoms in mild cases

Good for dogs with no pain and older dogs with stable knees.

Conservative Cons

  • Won’t fix the knee’s structure
  • Needs regular care and monitoring
  • May not prevent future joint damage

Long-term, untreated luxation may lead to arthritis or cruciate injuries.

Read more | Recovery After Medial Patellar Luxation Surgery in Dogs

Questions to Ask Your Vet Before Choosing Surgery

Ask your vet the right questions to make a confident decision.

  • Is my dog in pain or limping regularly?
  • Has the luxation worsened over time?
  • Is arthritis starting to form in the joint?
  • Would early surgery reduce future complications?

These questions help you understand the risks and benefits clearly. Your vet will assess your dog’s movement, palpate the kneecap, and may suggest X-rays. Together, you’ll decide if surgery should be done now or if you can continue with home care and regular checks.

The decision depends on your dog’s health, age, lifestyle, and how well they respond to non-surgical treatments. If the patella slips often or your dog starts avoiding walks, surgery is likely the right choice. If they’re playful and show no signs, conservative care might work for now.

Read more:

  • Medial Patellar Luxation Treatment Without Surgery
  • Best Exercises and Rehab for Dogs After MPL Surgery
  • Medial Patellar Luxation in Small vs. Large Dogs
  • How to Prevent Medial Patellar Luxation in Puppies
  • What to Expect After Surgery for Grade 2 MPL

    Surgery for Grade 2 MPL is very successful with proper aftercare.

    • Procedures include trochleoplasty, tibial tuberosity transposition, soft tissue tightening
    • Recovery starts with crate rest and pain control
    • Rehab includes gentle exercises and slow return to walking

    Recovery takes about 6 to 12 weeks. In the first 2–3 weeks, strict rest is needed. After that, you can begin leash walks, massage, and hydrotherapy as recommended by your vet.

    • Week 1–2: Pain control, crate rest
    • Week 3–6: Light rehab and passive movement
    • Week 7–12: Gradual return to normal walks and play

    Most dogs regain full use of the leg and show better gait and comfort. Early surgery often leads to less arthritis in the future and gives your dog a much better quality of life.

    What Happens If You Don’t Do Surgery?

    Delaying or avoiding surgery can lead to more serious joint problems.

    • Risk of progression to Grade 3 or 4
    • More joint wear leads to early arthritis
    • Increased risk of cruciate ligament tear
    • Future surgeries may become more complex and expensive

    Even if your dog seems okay now, the kneecap slipping over time may change how they walk. That causes stress on the hips, lower spine, and the other knee.

    Without surgery, managing the condition requires strict care—low-impact activity, controlled weight, and regular checkups. Some dogs still do well with this, but others start showing symptoms a few months or years later.

    If symptoms worsen, the surgery needed later might be more involved, with a longer recovery and higher cost. Early action can prevent this cycle.

    Read more | How to Tell If Your Dog Has a Medially Luxating Patella

    Final Thoughts: Is Surgery Right for Your Dog?

    The decision depends on how your dog is doing today and what risks you want to avoid in the future.

    • Does your dog limp or show pain?
    • Is the knee slipping more often?
    • Are you able to give consistent home care if avoiding surgery?

    Surgery is often a good choice if symptoms are active or your vet sees signs of progression. Many dogs go back to a full, pain-free life after recovery. But if your dog is comfortable and you can manage the condition with care, surgery might not be needed yet.

    Every case is different. Talk to your vet, observe your dog closely, and choose the plan that works best for their health and your lifestyle.

    Read more | Unilateral vs. Bilateral Medial Patellar Luxation in Dogs

    FAQs

    Can my dog live a normal life with Grade 2 MPL without surgery?

    Yes, many dogs with Grade 2 MPL can live comfortably without surgery, especially if they show no pain or lameness. Conservative care like weight control, joint supplements, and physiotherapy helps manage the condition. Regular checkups are important to catch any signs of worsening and adjust the care plan as needed.

    Will Grade 2 MPL always get worse over time?

    Not always. Some dogs remain stable for years with no change, especially if managed well. However, in active dogs or if symptoms like limping appear, the condition can worsen and lead to arthritis or cruciate injuries. Monitoring and early intervention help reduce the chance of progression to higher-grade luxation.

    Is surgery risky for small dogs?

    Surgery is generally safe for small dogs when done by a skilled orthopedic vet. Risks are present, like with any anesthesia or orthopedic procedure, but serious complications are rare. Pre-surgical exams, including blood work and heart checks, help reduce these risks. Most small dogs recover well and regain full mobility.

    How long should I wait before deciding on surgery?

    If your dog shows mild or no symptoms, you can try conservative care and observe for a few months. But if signs like limping, pain, or skipping steps become frequent, it’s best to consult your vet about surgery. Early intervention often leads to better results and prevents joint damage.

    What is the success rate of surgery for Grade 2 MPL?

    Surgery for Grade 2 MPL has a high success rate, often above 90%. Most dogs regain normal or near-normal function after recovery. The key factors are early treatment, proper post-op care, and following rehab instructions. When done before joint damage sets in, the outcome is usually excellent.

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