Can’t speak to specifics re. meniscus tear. Had major knee problems, diagnosed as combination of meniscus tear, arthritis of tibia, some under kneecap, and assorted debris in knee. Did arthroscopic “clean-out”. PLEASE do not do this. I learned that arthroscopic surgery limited to soft tissue usually works quite well, once you get to cartilage, you might as well throw in the hat and look to stem cell treatment or knee replacement (both down the road, of course, depending on how bad things are). Wish I would have had a better grasp of things when my knee troubles started. I ended up with unsuccessful arthro surgery of knee, followed by TKR 11 months (and lots of pain, exercises, shots, frustration) later. OK now 8 months post TKR. Try to avoid, though. Not your own knee, no matter how good the quality of the metal one is.