There is a lifter I know that had arthroscopic knee surgery and came back just fine, but I don't think he posts on here much, if at all. Arden Cogar (???). I know he posts on Pendlay forums and has talked about his knee surgery and his comeback from it. Yo might just search for it there or on GoHeavy Olympic forums (I think he posted about it there too).
Hope you find what you're looking for!!!