The lateral epicondyle is the non-articular lateral bulge of bone located superior and lateral to the capitulum. The radial collateral ligament attaches to the lateral epicondyle. The common tendon of the extensor muscles of the forearm and the supinator muscle originate on the lateral collateral ligament.
The medial epicondyle is the non-articular medial bulge of bone located superior and medial to the trochlea. The medial epicondyle is more prominent than the lateral epicondyle and the ulnar collateral ligament is attached here along with the forearm flexors.
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