-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