question: I think I tore my meniscus (not sure which) in the left knee; firstly about four months ago, it s stayed sore for a short while then got better with a little soreness here and there. Secondly, one month ago my left knee popped out of place during a sport activity and has been randomly feeling of set when in squatting position to standing position then replaced with a little adjustment. Today it is now filling with fluid and hard to walk on. Will thus go away or do I need surgery?