Where is inflammation typically located in cases of tennis elbow?

Tennis elbow, or lateral epicondylitis, involves inflammation occurring at the lateral epicondyle of the humerus. This condition arises due to repetitive strain and overuse, primarily affecting the tendons that attach to the lateral epicondyle. The inflammation results from microtears in the extensor tendons, which are utilized during activities that involve wrist and arm motions, such as gripping or lifting.

The lateral location of the inflammation is crucial to diagnosing and treating tennis elbow effectively. Patients often experience pain on the outside of the elbow, which can radiate down the forearm. Understanding where the inflammation is located helps clinicians develop targeted treatment plans, whether through physical therapy, corticosteroid injections, or modifications of activity to alleviate strain on the affected tendons. Proper identification of the lateral epicondyle as the area of concern differentiates it from other elbow conditions, such as golfer's elbow, which affects the medial epicondyle instead.