The triceps brachii muscle and its insertion on the olecranon.

Abstract

By preserving parts of the triceps tendon on the olecranon and preserving the lateral cubital retinaculum, the extension strength will be maximized, allowing early active elbow motion. Using the triceps brachii muscle for any approach, only the medial aspect might be used as a guideline to reach the olecranon. On the lateral side the fibers of the triceps tendon fan out as the LCR to join into the ulna and the antebrachial fascia.