Even at this distance, the nerve damage theory seemed far fetched.
The tricky part of problematic TKAs is you have two threads going: one is trying to address the problem, and the other is trying to manage our emotions and psychological stress.
Eventually my TKA problems got resolved but it left me with anger and fears that I am still trying to resolve. Take good care of yourself in this process, Coachie, so that when your knee issue gets resolved, you are ready to enjoy life to the fullest.