Lateral Epicondyle Of The Humerus, Posterior View

Description

Lateral epicondyle of the humerus anchors the lateral margin of the distal brachium, positioned lateral to the olecranon fossa and just proximal to the capitulum in this posterior elbow perspective. The bony prominence blends superiorly into the lateral supracondylar ridge, while its posterior surface sits adjacent to the groove region where the radial nerve and profunda brachii traverse more proximally before the nerve passes anteriorly toward the lateral intermuscular septum. Posteriorly, the epicondylar contour is read against the distal humeral columns, with the articular surface largely inferior and anterior to the point of maximal projection. Orientation is unambiguous. Pain at the lateral epicondyle most often reflects common extensor tendon pathology, classically lateral epicondylitis involving the extensor carpi radialis brevis origin, and a posterior bony landmark helps separate tendon-based tenderness from intra-articular disease or distal humeral fracture patterns. This fixed posterior viewpoint also supports teaching of posterolateral rotatory instability, because the lateral ulnar collateral ligament (LUCL) originates near the lateral epicondyle and failure there contributes to recurrent elbow subluxation after trauma. Lighting that emphasizes cortical relief and the blunt epicondylar apex makes it easier to discuss palpation landmarks and the relationship of epicondylar enthesophytes to chronic traction at the extensor origin. Use this illustration in upper limb osteology labs, sports medicine teaching on tennis elbow versus radial tunnel syndrome, and orthopedic references outlining lateral collateral ligament complex anatomy during posterolateral approach discussions. It also suits exam material that tests distal humeral landmarks and muscle attachment maps in posterior orientation. Anatomical accuracy verified by SciePro's Medical Advisory Board.