The Anatomical Characteristics Of The Lateral Epicondyle Of The Humerus

Description

Arising from the distal humerus on the lateral side of the elbow, the lateral epicondyle appears as a roughened bony prominence just superior and slightly posterior to the capitulum, with the radial head articulating immediately inferior and lateral across the humeroradial joint. The animation moves through progressive views of the distal arm (brachium), rotating to clarify how the lateral supracondylar ridge continues proximally and how the epicondyle relates to the olecranon fossa posteriorly and the radial fossa anteriorly. Osseous texture and contour are emphasized as the camera angle shifts, keeping the epicondyle’s palpable surface in constant reference to adjacent articular landmarks. Clinically, this is the attachment region implicated in lateral epicondylitis (tennis elbow), where repetitive wrist extension and gripping load the common extensor origin, most often the extensor carpi radialis brevis. Location matters. By showing the epicondyle in motion relative to the capitulum and radial head, the sequence helps learners distinguish true epicondylar tenderness from pain originating at the radiocapitellar joint, posterolateral plica, or radial tunnel compression of the posterior interosseous nerve. Use this animation in upper limb anatomy teaching to anchor bony landmark identification, in sports medicine and orthopaedics content discussing tennis elbow and injection or bracing landmarks, and in radiology teaching to orient AP and lateral elbow projections to palpable anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.