Pain upon standing and tight band feeling around knee are typical symptoms following TKR. How long ago was your last surgery. I'm sure you've been told it takes a year to heal. What a bummer that you've had to endure 3 major knee surgeries in such a short span of time. All of which sounds like due to mistakes made by the surgeon. I hope he finally got it right after 3 tries. You must have been so angry but must have also had a lot of trust each time that he would get it right "this time". Just wow.