I had a total left knee replacement on 9/30/19 after a fall that also broke my femur. I’m well into my recovery and the only significant pain is when I’m sitting with my left leg at a 90 degree angle and there’s pressure from behind, i.e chair, car seat, couch, etc. The pain continues to build until I’m able to stand up. I wonder if the rod that replaces 9” of my femur is being pushed into my knee when I’m in that position. Any ideas?