Tennis elbow

Tendinopathy caused by a hyaline degeneration in the tendon attachment
The pain can spread up to the upper arm and down to the forearm in addition to the pinpoint pain at the elbow (radial humeral epicondyle)
Movements involving the hand, such as unscrewing the lid on a jam jar or lifting the milk carton, can cause pain, and in some cases be impossible to perform due to lack of strength
Most common at ages 35-55, equal gender distribution

ECRB is examined by palpation at the attachment and tested with the elbow joint straight and extension of the 3rd metacarpal
ECRL is examined with 30 degrees elbow flexion and extension of the 2nd metacarpal
ECU is tested with ulnar deviation of the wrist against resistance.