Transverse simple fracture of the ulna

These include transverse fractures of the ulna.

These are classified by AO/OTA as 2U2A3.

Ulnar fractures may occur with minimal displacement. If they are misinterpreted as hairline fractures and are not strictly immobilized, there is a risk of delayed union, or pseudoarthrosis.

Simple fractures are often the result of indirect mechanisms, such as a fall onto an outstretched hand, sporting activities, etc. Surgical management of ulnar fractures is generally more straightforward because of the architecture of the ulna and its superficial location.