I just feel so bad for you. I wish I could offer some advice, but other than seeking a malpractice attorney, which doesn't help solve the medical issues, I can only encourage you to search for an orthopedic surgeon who specializes in revision complications. That's what I'm doing. I'm three months post op from a partial to a total replacement. A year after my first surgery I was still having pain and swelling and had an arthroscopy which showed synovitis and other findings the surgeon said he didn't expect. He cleaned it up and two years later I had the revision. The heat in the knee is constant and I don't know if it's raging synovitis or an infection. But the pain and constant catching of either the hamstring or other tissue is unbearable. My PT is very aware of it and can feel the catching. I'm waiting to hear if I can get an appt with an ortho who specializes in complicated revisions. Please post how you're doing and what has helped/didn't help.