I still have a lot if pain three years after tkr. Knee seems to function ok. I have returned to surgeon 4 times and his conclusion is: I dont know whats wrong. So i went and got 3 other opinions. One opinion is the spacer is too small and could be replaced. The other three opinions are that there’s nothing wrong with the implant. And im just one if those people who are going to always have pain. What to do! And i have to pick out a surgeon for the severely arthritic right knee really soon! Just dont know what to do!