He sprained/tore 'ligaments' in his knee.
(..) it's not subluxation. There's a complete separation there. I think I know what happened! This is wonderful to see. Note the capsular ligaments and coracoacromial ligaments show signs of stretching and abnormal position. If you add these findings to the stress fractures (..)2014 TvShow: Bones Title: The Master in the Slop Season: 9 Episode 14