Displaced apophyseal olecranon fracture in a healthy child.

Olecranon apophyseal fractures in children are uncommon. The bulk of these injuries are nondisplaced and therefore can be treated nonoperatively. Few published reports of children with displaced fractures of the olecranon apophysis exist, and the large majority of reports describe children with osteogenesis imperfecta. We report our experience with the case of an 11-year-old, healthy, male patient without osteogenesis imperfecta who sustained a displaced olecranon apophyseal fracture during a fall.