hip surgery

Had RA,since 03& OA since 07 which really put a damper into thing. Then I stared having problem with my hip area. On both sides,but the right side was the worst.Well it when on.. Until I was diagnose with Addison disease,in 08. The Dr. put me on prednisone for the Addison and said there was nothing eles for it. Then I stared having problems with my hip again and when back to the Dr. He said that the prednisone is what cause my hip to go bad. He told me to find me a good surgeon. I had my knee done a few years ago. SO I called the same one. He sat me up for Feb 20, for my Total hip replacement.