Just want to first thank everyone for all the encouragement and valuable insights, so helpful. I am 6 mo. post R TKA. I had 12 wks of successful therapy with 0 extention and 125-130 flexion. However, an on going intermittent issue is pain, soreness, and tightness on the posterion medial aspect of my knee below the bend. Recent xrays showed excellent fit, alignment, and petella tracking. Therapy kept saying it was related to hamstring tightness and keep doing the exercises, which I do. When I hyperextend my knee I do not feel any pulling sensation above the knee, just below as descibed above. Is there any other issue that could cause this, if so, what can be done? Surgeon says every thing looks good.