Hi Joe, I had a top Boston surgeon who I continue to see for my left knee for cortisone shots. The problem that I had was that I was allergic to each pain killer that he prescribed. After having reactions from four of those prescriptions, I was advised to just take Tylenol Extra Strength, which did nothing for my pain. I fell way behind in PT because I could not do a lot of the exercises. So……it took me a long time to recover from that surgery. I was in good shape going into the surgery because I had been exercising ahead of the surgery. It still is painful today…..more in an arthritic way. I asked my surgeon if arthritis can develop around the knee replacement and he said that he has heard of that. I think that is going on with me. I will continue to exercise, along with getting a cortisone shot every 3-4 months in my left knee. I have seen your posts on here, helping people out with terrific advice! I am very happy for you that you had such success with both knees!