Upper extremity injuries in adolescent tennis players.

The majority of adolescent tennis players will have their playing temporarily interrupted by an injury, with lower extremity problems predominating. Although upper extremity injuries occur less frequently, they tend to be more troublesome. Injuries discussed in this article include "King Kong arm," slipped capital humeral epiphysis, "Osgood-Schlatter disease" of the shoulder, tennis elbow, stress synovitis and elbow flexion contracture, and friction burns and collagen stress fractures of the rotator cuff.