Irreducible supracondylar fracture of the humerus complicated by anterior interosseous nerve palsy.

Supracondylar fractures of the humerus are common injuries in childhood and constitute greater than 50% of fractures involving the elbow joint. Neurovascular compromise is not infrequent and has been variously reported as occurring in 5%-17% of displaced fractures. A seven-year-old girl with isolated involvement of the anterior interosseous branch of the median nerve, an uncommon complication, is reported, along with a review of the literature.