The proximal ulna forms the hinge of the elbow, and its fractures live under constant traction. The triceps pulls the olecranon fragment upward with each degree of flexion, which is why fixation belongs on the dorsal tension side — and why it has to hold against continuous, repetitive load rather than a single deforming force.
A locking dorsal plate answers both demands. Its proximal locking screws grip the olecranon fragment at a fixed angle even in thin or osteopenic bone, the anatomic contour follows the dorsal ridge without prominent hardware, and longer versions bridge comminution or carry the construct distally in Monteggia-type injuries. Fragment assessment and the choice between plate and tension band remain with the operating surgeon.
