I am 5 months post TKR. I still have stiffness and some intermitant pain. Every knee is different! I continue to do my knee stretchs for range of motion and do an exercise class that incorporates a full body workout that includes getting in an out of a chair for strength. I also am going to start back on the exercise bike. I had a couple of weeks of sciatica at 4 monts TKR so I stopped my routine due to extreme pain from that! Slowly but surely I am getting back to normal!