I had a little dog with hip dysplasia. The doctor operated on her hips, and she was much better. She wasn't "good as new," but the doctor said she wasn't in pain. We had an incredible vet, though, and I suspect he charged us less than most would have. It might be a very expensive operation, for all I know. We paid $150 about ten years ago. Still, it's something to check into.
Shari