title: Fracture of an unossified tibial tubercle.
abstract: A rare fracture of an unossified tibial tubercle in a 12-year-old boy is presented. Resisted active extension was the mechanism of injury. Clinical examination demonstrating tibial tubercle pain and crepitation and weakness of knee extension and radiographs showing a unilateral high-riding patella led to the suspicion of a fracture through the unossified tubercle. Operative treatment with appropriate fixation was performed, and an excellent result was obtained.
mesh_terms: D000293:Adolescent; D002648:Child; D006801:Humans; D007718:Knee Injuries / Q000209:etiology; D008297:Male; D010012:Osteogenesis; D011859:Radiography; D013978:Tibial Fractures / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery