FRACTURE OF A SUPRACONDYLAR HUMERAL MYOSITIS-OSSIFICANS

Although myositis ossificans is a well-known sequela of elbow trauma, reinjury to the affected region can also occur, resulting in acute sym ptoms from a fracture of the myositis ossificans. An 18-year-old man p resented with localized pain, soft-tissue swelling, and a bony mass al ong the anterolateral distal humerus with restricted elbow range of mo tion after injury to his elbow during football. One year earlier he ha d sustained a similar crush injury to his elbow that resulted in a lim ited, although painless, are of motion. Radiographs and tomograms esta blished the diagnosis of a fractured supracondylar humeral myositis os sificans. Surgical excision of the large mature ossified fragment conf irmed the diagnosis and restored a full range of motion of the elbow.