I would like to comment on this issue… I’m 42 years old, anybody with arthritic knee’s can attest to what it’s like to try to get out of a chair or climb stairs with this condition. It’s absolutely no fun. I spend countless dollars on Vioxx just to be able to move like a normal person, Also I’m sure at some point when I’m really old were talking about new knee joints. For gods sake leave the kid alone, when you don’t take care of yourself at the dumb and young age you pay for it when you get old. I can attest to that… I once thought I to was 10ft tall and bullet proof. Take care of it now and live a productive life when you are older. “PAIN FREE” Good luck with R.J.’s recovery.