Golfer's elbow
Golfer's elbow, or medial epicondylitis, is tendinosis (or more precisely enthesopathy) of the medial common flexor tendon on the inside of the elbow. It is similar to tennis elbow, which affects the outside at the lateral epicondyle. The tendinopathy results from overload or repetitive use of the arm, causing an injury similar to ulnar collateral ligament injury of the elbow in "pitcher's elbow". Description The anterior forearm contains several muscles involved with flexing and pronating the wrist in arm movements that are part of the full golf swing, several sports involving throwing, and in manual labor. The tendons of these muscles have a common origin at the medial epicondyle of the humerus at the elbow joint. The flexor and pronator muscles of the forearm include the pronator teres, flexor carpi radialis, palmaris longus, and flexor digitorum superficialis, all of which originate on the medial epicondyle and are innervated by the median nerve. The flexor carpi ulnaris muscle also inserts on the medial epicondyle and is innervated by the ulnar nerve. Together, these five muscles join the same flexor tendon of the medial epicondyle of the humerus this is the location of injury in golfer's elbow. The flexor tendon is approximately