Overview
Luxating patella occurs when the kneecap (patella) slides out of its normal groove, causing intermittent lameness. In mild cases, the kneecap pops back on its own; in severe cases, it stays displaced and requires surgery. Small breeds are genetically predisposed, though large breeds can also be affected. Maintaining a lean weight reduces mechanical stress on the knee joint.
Symptoms to Watch For
- Intermittent skipping or hopping on a hind leg
- Sudden limping that resolves on its own
- Reluctance to jump or climb
- Stiffness in the hind legs
- Bow-legged stance in severe cases
How Nutrition Helps
Maintaining a lean body weight is the most impactful nutritional strategy — every extra pound puts added stress on the knee joint. Glucosamine and chondroitin support cartilage health around the joint. Omega-3 reduces joint inflammation. Controlled calcium during puppyhood supports proper skeletal development.
How Activity Helps
Low-impact exercise strengthens the muscles around the knee, providing natural joint support. Swimming is ideal. Avoid high-impact activities like jumping from heights. Consistent moderate exercise is better than intense bursts.
Prevention Tips
- Maintain a lean, healthy weight
- Low-impact exercise to build thigh muscles
- Avoid jumping from heights (especially small breeds)
- Ramps for furniture and cars
- Early surgical correction if grade 3-4
Breeds at Higher Risk
Yorkshire Terriers, Pomeranians, Chihuahuas, Toy and Miniature Poodles, Cavalier King Charles Spaniels, and French Bulldogs.