The radiographic and clinical records of 95 children with nondisplaced or minimally displaced fractures of the lateral humeral condyle treated on a nonoperative protocol were reviewed. Acute nondisplaced or minimally displaced fractures were defined as < 24 h old on initial evaluation and displaced < 2 mm in three radiographic planes (anteroposterior, lateral, and internal oblique). Closed treatment and close follow-up in a long-arm cast or splint resulted in a union rate of 98% in 3-7 weeks. Two of the fractures displaced required open reduction and internal fixation and then subsequently went on to union without complications.