Sorry for your troubles. It's been 2 years since TKR. I've endured endless PT, numerous Ultra Sound with injections to try to mitigate scar tissue, daily workouts at local gyms, and the damn thing still won't bend past 95 degrees w/o significant effort & extraordinary pain. Any positive results derive from my adamant determination not to succumb to this awful outcome. I push the TKR knee to level 10 pain each and every day w my stretches to retain the functionality I achieved. Consequently, I am able to do most of what I want and remain thankful I did NOT do both knees. The occasional cortisone shot and knee brace help the other knee work. I gave up trying to play pickleball and learned to be content with treadmill and a 10 speed. If I gain weight, the TKR knee suffers worse than the other knee. Weight, apparently, is a major factor and is something I can control.

Would I do it again? Not in a million years.