FWIW I have a final summary of my case. The original TKR was done with the wrong parts. My knee required different, stabilization parts due to ligament damage from the car wreck that caused this problem. My daughter and I were hit head-on by a drunk driver 30 years ago. My daughter was 6 and suffered PTSD the rest of her life. My knee was blown open and all three bones were broken. I discussed this with that doctor twice. He missed that damage. And when he finally listened to me, he decided the spacer was too small instead. The spacer swap infected the knee. Six months after that surgery, the doctor admitted he had been 'remiss' and recommended the new parts. I got a new doctor who specialized in knee reconstruction. Two more surgeries later (take the old parts out, disinfect, and put new parts in) and I finally feel like this knee will recover. It has been a year and I am told it could take 2 more to fully recover. I got a referral from a prominent orthopedic surgeon for the first doctor. I went with it and it failed me. I still wonder what I could have done different