My DH had surgery for a torn ACL, MCL, & medial meniscus. He spent the night in the hospital because it was pretty extensive surgery complete with the insertion of a cadaver. He went to physical therapy a couple of weeks - didn't finish out his prescription. (He only went twice when he had his shoulder operated on so I guess two weeks is pretty good for him.) Once he received his custom fit brace he was back to playing flag football which was the cause of the injury in the first place. The surgery was six or seven years ago. Hasn't slowed him down a bit.