This thread showing up is so timely for me. Thanks for everyone's experience with either replacement or repair. I finally decided, December 28 I go under the knife on one knee for repair surgery.
Doctor said there is a 50% success rate of repair surgery resulting in being pain free. Flip side of coin was injections but was told that's a 50% chance of working also.
I picked a Doctor that does all the football players. I told him I am a vary active RV'er and 'need' to get back into the game just like one of his football patients!!
So, figured I go in for good cleaning of all the stuff that is torn inside that knee! Praying it all goes well.