For what it's worth, I'm quickly getting there myself even though I'll be 65 which I believe is somewhat young for that procedure. My decision is already made. Absolutely I'll get the replacement and I'm not going to go through any of that arthroscopic stuff for it rarely, if ever, turns out to be a permanent fix, at least when compared to a knee replacement.
NCL Epic 2012, Eastern Caribbean
Explorer of the Seas 2009, Eastern Caribbean
Explorer of the Seas 2007, Eastern Caribbean
Explorer of the Seas 2006, Eastern Caribbean