I am over two years out from my tkr. I permanently have numbness on the inside of my calf and have had constant pain on the lateral side of knee since surgery. Does not go down the leg. Seen five doctors trying to figure this out. Latest is an IT band issue which could be “fixed” with arthroscopy but the diagnostic with lidocaine hasn’t been scheduled yet. It takes months to see anyone and all have different opinions. One doctor said to have a revision which I won’t consider at this time. I will ask the new doctor about this nerve and if it could be the problem. Meanwhile I tape my knee, lidocaine patches or use bio freeze. You may have different pains for the first year but they should settle down. One day at a time!