I would get a second opinion because it sounds like Luxating Patella or something else. You might want to just go to a specialist, an orthopedic specialist could probably feel around his leg and tell you what the problem is. Normally when a dog is not using there leg it means it hurts and dogs are very good at hiding pain.
__________________  Taylor  My babies Joey, Penny , Ollie & Dixie   Callie Mae, you will forever be in my heart! |