Lateral (Tennis) Elbow Tendinopathy

Lateral (Tennis) Elbow Tendinopathy is a condition that affects the outer part of the elbow, involving the tendons that connect the forearm muscles to the bone. It is caused by repetitive use or strain, often from activities like playing tennis or other motions that require gripping and wrist extension. This condition leads to pain and tenderness on the outside of the elbow, which can worsen with movement or lifting objects. The affected tendons become inflamed or damaged, causing discomfort and limiting arm function. It primarily impacts the musculoskeletal system and can interfere with daily activities that involve arm and hand use. The pain is usually localized and may radiate down the forearm. Over time, the condition can become chronic if the repetitive strain continues.

Lateral (Tennis) Elbow Tendinopathy is a degenerative condition characterized by microtears and collagen disorganization in the extensor carpi radialis brevis tendon at its origin on the lateral epicondyle of the humerus. It results from repetitive wrist extension and forearm supination activities causing overuse injury and failed tendon healing. The pathology involves tendinosis rather than acute inflammation, with fibroblast proliferation, neovascularization, and disordered collagen fibers. Clinically, it presents with lateral elbow pain, tenderness over the lateral epicondyle, and pain exacerbated by resisted wrist extension or gripping. It is a common cause of chronic elbow pain in adults, especially those engaged in repetitive manual tasks or racquet sports. The condition can lead to functional impairment and decreased grip strength, significantly affecting quality of life.