-IBIS-1.5.0-
tx
musculoskeletal system
epicondylitis
diagnoses

definition and etiology

definition:
Strain and inflammation of the lateral forearm extensor muscles at their origin on the lateral epicondyle of the humerus. Also called "Lateral humeral epicondylitis" and "Tennis elbow".

etiology:
The inflammation is from forceful repetitive supination of the wrist (using a screwdriver, playing tennis).

signs and symptoms

signs and symptoms:
• History of repetitive movements.
• Pain: May be disabling from severity. It occurs over the lateral epicondyle and can radiate to the lateral arm and forearm. Worse dorsiflexion and supination of the wrist against resistance.
• Tenderness may be severe: Located distal to the lateral epicondyle.

lab findings:
• X-rays: Negative for pathology.

course and prognosis

With proper treatment and avoidance of the initiating activity, the pain will gradually subside. Recurrences are common if prophylaxis, such as a forearm strap, is not used when the activity is restarted.

differential diagnosis

• arthritis
• local trauma


footnotes