I'm sorry you're in such pain, but I would also suggest an MRI just to make sure nothing else is going on. MRI's can detect things that a regular xray cannot. Please see my previous post about Avascular Necrosis/Osteonecrosis. I think alot of people get diagnosed with OA when AVN or ON can be the cause of the pain and don't know it until arthritis like symptoms kick in. Hope you get to the bottom of things and that you find relief soon.
20 yo daughter w/ Pancolitis
Step 1 colectomy/jpouch creation 11/27/06
Step 2 takedown 2/9/07
21 yo Daughter diagnosed with bilateral knee AVN
and right elbow AVN