Hi @carlin Welcome to Connect.
Have you tried getting a second opinion? From what I have heard from people with long-lasting problems, that's the best thing to do. Many people, like @babette, did, have had the problem solved by a new surgeon. I have a friend who went for two years before the cause was discovered and fixed by a different surgeon.

I have had two TKRs, neither of which has been a problem other than not having quite as much flex as I would like. As with @babette I had a great surgeon in Boston, his name is Dr. Wolfgang Fitz and he is at Brigham and Women's. The surgeon of the friend I mentioned is the Clinical Chair of Orthopedics and Surgeon in Chief at New England Baptist. His name is David A. Mattingly. I am sure there are excellent orthopedic surgeons closer to you though, assuming you do not live in the Boston area. I would go to a major medical center, preferably at a teaching hospital, and find a great surgeon there.

I hope you can find some relief. It's miserable to live with pain daily.

@ardis3 There are a couple of additional names for orthopedic surgeons for you too.
JK