title: Lateral capsular sign: x-ray clue to a significant knee instability.
mesh_terms: D000293:Adolescent; D000328:Adult; D001696:Biomechanical Phenomena; D006801:Humans; D007717:Knee / Q000033:anatomy & histology / Q000502:physiology; D007718:Knee Injuries / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D011859:Radiography