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My dog is suddenly limping on a back leg. Is it a luxating patella?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua (Smooth Coat) | Female | spayed | 12 lbs

My slightly overweight 3yr old chiweenie suddenly came up lame in one rear leg on Tuesday after we had been out. She will put weight on it and sometimes walks a few steps normally, but primarily holds it up. She will kick after urinating with the injured leg and stretches ever so delicately but fully extending the leg . What the heck ? This can't be a luxating patella can it?

1 Answer

Most Helpful Answer

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Answered By Amy S. Eutsey, DVM

Veterinarian

Published on October 18th, 2018

It may be. She may have a soft tissue injury or some slight swelling at the knee which is causing the patella to luxate even though it has not been a problem in the past. Your veterinarian can most likely determine if that is the case by a physical exam. If her patella is loose and moving around, it is usually pretty easy to detect.

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