I had my TKR 2+ years ago. They gave me a knee with a PS stabilizing post, which is notorious for causing scar tissue. I had the latest, greatest robotic procedure: I did not expect THIS type of knee. I did develop “patellar clunk syndrome” and had arthroscopic removal of the plethora of scar tissue filling up the space between all the parts. I watched the surgery on a screen as it was being done: it took two hours to remove all the tissue! It has been 8 months since then. It seems to have resolved the clunk problem, but I still continue in pain. I have been in pain EVERY day since the original surgery. I am very interested in this nerve ablation procedure, as I have had RFA on my lumbar facet joints with great success for my back pain. I would love to hear from anyone who has had it for the knee & where are good medical centers to find the right doc to see. I am within driving distance to the Cleveland Clinic, btw.