All this means, as a fellow torn labrum victim, is that he's done enough PT to move through the pain or minimize the pain. The tear doesn't heal without surgery. He will have to keep up with his PT, pre and post-game healing routines, etc. I doubt he plays in back-to-backs. (comment I read on another board)
I read an interview where Brad mentioned that Isaiah has had this injury since he was very young. It seems crazy that he's never had it operated on.