I changed Dr. It has not been over 8 months. Leg is not straight. Walk with a cane. Walking like I am walking has affected my back, my right knee. The Dr I changed to Aug11h was his last day. I now have no Dr. My left knee feels like it will burst open. Very weak leg. I am just lost. Thearpy has done all they could. I worked at home on this til I am sick. What do I do. I have no one to ask this question. I am depressed to say the least. Thank you for replying. The new Dr did say everything was in place properly.