Irreducible epiphyseal plate fracture of the distal ulna due to interposition of the extensor carpi ulnaris tendon ( a case report)

It is well known that tendon or muscle interposition can cause fractures to be irreducible by closed means. A rare tendon interposition of extensor carpi ulnaris occurred in an 11-year-old boy. The isolated displaced distal ulnar physeal injury was the result of a motor vehicle accident. Attempts to perform a closed reduction failed. At operation, an interposed extensor carpi ulnaris tendon was found. After repositioning the tendon, a near anatomic reduction was easily accomplished