I’m 15 months out and still experiencing pain, tenderness, warmth and very limited use on things like stairs, hills etc. I had an mri, bone scan, Ct scan, and X-ray. All look good other than inflammation of tendon and soft tissue. I had a partial replacement of both knees. Rt knee is perfectly fine, works like it should and no pain or swelling. My doctor wants to do a total knee replacement on the left. I’m hesitant because no one can tell me what is wrong with the first one. So how do we know if another surgery will even help? I don’t know how long I can handle the immobility and pain but definitely do not want another surgery. It’s a conundrum.