@sraley1 Don't you just love how surgeons know everything before and during surgery then, suddenly, they have *no clue* as to why we are in pain, numb, etc. Anyway, your story sounds a bit like mine, but I'm only out 8 months. My first 4 months were like yours but the tight, numb "band" above my kneecap hasn't improved. Since it seems I need my other knee replaced soon anyway, I'm going to get a second opinion.
In the meantime, what I have found to be most helpful is riding a stationary bike at home. I really warms up the knees and I feel a lot better on days I've done that exercise. I bought the bike on Amazon for less than 200 and it's a gem.
Best wishes for healing.