Traumatic dislocation of the radial head at birth.

A female delivered in a breech presentation after manipulation of the arms was found 2 days later to have sustained anterior dislocation of the left radial head. Surgical correction proved successful, and when re-examined 5 years later the elbow had remained normal. It is probable that in many cases of unilateral displacement of the radial head, detected later in life but reported as congenital, the malposition has been a sequela after unrecognized birth injury.