Congenital radial head dislocations.

Congenital radial head dislocation is the most common congenital elbow abnormality. Patients generally remain asymptomatic until adolescence and, at that time, may benefit from radial head resection. Open reduction and ligament reconstruction may offer advantages over late radial head resection if performed before the age of 2 years. Further long-term studies are needed to determine if open reduction and ligament reconstruction are helpful.