@nobend 1st arthroscopic, 2nd tkr, 3rd manipulation, 4th revision to remove scar tissue (not the apparatus), 5th to remove 12 large sutures showing through my skin and painful. Knee is still stiff, bend 110, but doesn't hurt. Pes anserine bursae inflammation just below my knee was the initial problem. Because not addressed the pain was excruciating preventing me from bending my knee. Hence the scar tissue. I still occasionally have to get cortisone shots in the bursae. I blame the first surgeon who would not listen to me.