<unk> s account for approximately 10% of all upper extremity fractures in adults. These fractures are commonly classified with the Mayo system which breaks fractures down into three types with the further sub-typing of fractures using "A" and "B" nomenclature in which "A" refers to non-comminuted fractures and
B" refers to the presence of communinution.
Type I - Non-displaced
Type II Displaced-Stable
Type III Unstable or accompanying instability of the ulnohumeral joint
The most common type that is seen is the type II simple transverse fracture which accounts for greater than 85% of<unk> s. The incidence is 1.15 per 100,000 individuals.
The mean age of patients sustaining such fractures is in the 50's with men typically being injured at younger ages than women. Furthermore, the most common associated injury is fracture of the ipsilateral proximal radius.
Olecranon fracture
Pilon fracture
Lisfranc fracture
Galeazzi fracture
Rolando fracture
Calcaneal fracture
Pseudo-Bennett fracture
Tillaux fracture