Dog Health: Patellar Luxation

Dog | Patellar Luxation

An Introduction to Patellar Luxation

Dr Erin Coomer - Veterinarian

July 2013

The patella is the knee-cap. At the top (proximal), it attaches to the quadriceps muscles, and at the bottom (distal) it attaches to the top of the tibia bone. The patella allows the quadriceps muscles to straighten the knee joint. Normally, the patella sits within a groove in the femur bone.  It should ride up and down within this groove, as the leg moves.



Dog Patellar Luxation information

Causes of Patellar Luxation

In some dogs, the patella can abnormally move out of its groove.  The movement is most commonly in a medial direction – meaning, towards the other leg (to the inside).  Lateral/outward luxation can also occur, but is more common in large breed dogs.

This is a chronic problem for your dog, which may...
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Symptoms of Patellar Luxation

In some dogs, the patella can abnormally move out of its groove.  The movement is most commonly in a medial direction – meaning, towards the other leg (to the inside).  Lateral/outward luxation can also occur, but is more common in large breed dogs.

This is a chronic problem for your dog, which may...
» Read More

Treatment of Patellar Luxation

DIAGNOSIS

Your Veterinarian will examine your dog and collect a detailed history.

During the physical examination, your Vet will watch your dog walk and also palpate the knees.  He/She will be able to quickly determine if your dog has patellar luxation(s). The degree of movement is often graded on a scale from 1 –...
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