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Tennis elbow, also known as lateral epicondylitis is an enthesopathy (attachment point disease) of the origin of the extensor carpi radialis brevis on the lateral epicondyle. [1] [5] It causes pain and tenderness over the bony part of the lateral epicondyle. Symptoms range from mild tenderness to severe, persistent pain.
A common diagnostic test utilized for lateral epicondylitis is to assess resisted wrist extension, along with resistance to the middle finger. If symptoms can be reproduced, it could indicate lateral epicondylitis. [5] For medial epicondylitis, resisted wrist flexion and pronation would be assessed by your provider.
The theory is that the radial nerve becomes irritated and/or inflamed from friction caused by compression by muscles in the forearm. [1]Some speculate that radial tunnel syndrome is a type of repetitive strain injury (RSI), but there is no detectable pathophysiology and even the existence of this disorder is questioned.
A common injury associated with the lateral epicondyle of the humerus is lateral epicondylitis also known as tennis elbow. Repetitive overuse of the forearm, as seen in tennis or other sports, can result in inflammation of "the tendons that join the forearm muscles on the outside of the elbow.
Lateral elbow pain can be caused by various pathologies of the common extensor tendon. [3] Overuse injuries can lead to inflammation. [4] [5] Tennis elbow is a common issue with the common extensor tendon. [6] [4] [7]
Tennis elbow or lateral epicondylitis is a chronic or an acute inflammation of the tendons that arise from the outer part of the elbow. The affected tendons are the tendons of extensor muscles which originate from the lateral epicondyle of humerus. It is caused by the repetitive movements and overuse.
Lateral epicondylitis is an overuse injury that frequently occurs in tennis. It is also known as tennis elbow. This injury categorizes as a tendon injury where it occurs in the forearm muscle called the extensor carpi radialis brevis . [4] The injury is regularly developed in recreational players. [4]
Golfer's elbow, or medial epicondylitis, is tendinosis (or more precisely enthesopathy) of the medial common flexor tendon on the inside of the elbow. [1] It is similar to tennis elbow , which affects the outside of the elbow at the lateral epicondyle.