Still have pain with 3yr old TKR while other knee now shows bone on bone and advanced degenerative changes and osteophytes and sclerosis. The surgeon said knee is a candidate tor TKR anytime, but of course as they always say, its up to you. I was happily thinking I could put it off til December and enjoy a fun, active summer. Well ha ha on me. Walking downstairs is very painful. The prospect of biking or hiking is scary. And that knee locking! Every day it locks up on me and the pain is excruciating! I'm sure my sounds of agony alarm my young students! On the one hand, I need someone to push me over the edge, on the other hand, losing the summer and all my dreams for it is an unbearable thought.