The symptoms of a failed pet patella repair.

Understanding Patellar Luxation in Pets: Symptoms and Signs of Failure

Pet owners often face a variety of health issues with their furry companions, and one such condition that can cause significant discomfort is patellar luxation. This condition, which affects the kneecap (patella), can lead to lameness and joint problems if not addressed promptly. Here’s a comprehensive guide to recognizing the symptoms of patellar luxation failure in pets, using American English.

What is Patellar Luxation?

Patellar luxation is a condition where the kneecap (patella) moves out of its normal position within the groove of the thigh bone (femur). This can happen due to a congenital defect, trauma, or degenerative changes in the joint. The condition is more common in certain dog breeds, such as toy breeds and larger breeds with specific conformational issues.

Types of Patellar Luxation

Patellar luxation is classified into four grades, based on the severity of the condition:

- Grade I: The kneecap can luxate (move out of place) manually but returns to its normal position on its own.

- Grade II: The kneecap luxates manually and may also luxate during normal activities, but it returns to its normal position with manual assistance.

- Grade III: The kneecap luxates during normal activities and can be manually returned to its normal position, but it may luxate again.

- Grade IV: The kneecap is luxated most of the time and cannot be manually reduced to its normal position.

Symptoms of Patellar Luxation Failure

Identifying the symptoms of patellar luxation failure is crucial for early intervention. Here are some common signs to watch out for:

Limping

One of the most common symptoms of patellar luxation is limping. Your pet may limp on the affected leg, especially after exercise or when standing up from a resting position. The limp may be intermittent or consistent, depending on the severity of the luxation.

Abnormal Gait

You may notice an abnormal gait in your pet, such as a hopping or skipping motion. This occurs when the kneecap is out of place, causing the leg to function improperly.

Reluctance to Move

Pets with patellar luxation may become reluctant to move or play. They may also have difficulty climbing stairs or jumping onto furniture due to the pain and discomfort associated with the condition.

Swelling or deformity

In some cases, you may notice swelling or a visible deformity around the kneecap area. This can be a sign of inflammation or damage to the surrounding tissues.

Clicking or Popping Sounds

You may hear a clicking or popping sound when your pet walks or runs. This is caused by the kneecap moving in and out of its normal position.

Chronic Pain

Pets with severe patellar luxation may exhibit signs of chronic pain, such as whining, growling, or avoiding touch. They may also show signs of aggression due to the pain.

Diagnosis and Treatment

If you suspect your pet may have patellar luxation, it’s essential to consult with a veterinarian. They will perform a physical examination and may use diagnostic imaging, such as X-rays, to confirm the diagnosis and determine the grade of luxation.

Treatment options may include conservative management, such as weight management, physical therapy, and anti-inflammatory medications. In severe cases, surgery may be necessary to stabilize the kneecap and prevent further luxation.

Conclusion

Patellar luxation can be a challenging condition for pets, leading to discomfort and lameness. By recognizing the symptoms of patellar luxation failure, pet owners can seek timely treatment and help their furry friends live a more comfortable life. Regular veterinary check-ups and early intervention are key to managing this condition effectively.