[A case of anterior interosseus nerve lesion (Kiloh-Nevin syndrome)]

A case is reported of an isolated traumatic anterior interosseus nerve lesion by the patient's walking with crutches after application of a leg plaster. The literature is discussed and the importance of anatomic variants is pointed out. These may produce an anterior interosseus nerve palsy with or without identifiable trauma. The knowledge of these variants is important in considering and in undertaking neurolysis.