My little Bella who is now 4 1/2 was diagnosed with luxating patella when she was 1 1/2. She went to a specialist who determined she had luxating patella in both her knees but her left leg was the worst. She had surgery on both legs at the same time as it was cheaper to do it that way, $2,500.00 later. She was in double casts for 3 weeks. I had to hold her up so she could go potty. She had to stay off her legs at all times.
Had the cast removed did some physical therapy and back on her feet again. Unfortunately she was still lifting her left leg when trotting. So back to the specialist, nothing on x-ray but vet thinks maybe pins have grown into skin and may be irritating her. So another surgery on her left leg, another cast, another recuperation and voila, she still picks up her left leg when trotting. She runs and walks with no problems. She also sometimes cries out in pain as I believe her left leg locks up, happens mostly in the colder months.
If I had to do it all over again I don't think I would opt for the surgery as it has not made any difference in her life. She will eventually develop arthritis because of the surgery.
I am not saying that your little one will have the same results I just wanted to share my experience with luxating patella.
Jay
