[38] (A): Transolecranon fracture-dislocation of the elbow can be associated with complex disruption of the proximal ulna with large coronoid fracture fragments, comminution in the depths of the ...

1a) structures are composed of the coronoid process of the ulna ... Restoring Elbow Stability After Fracture-Dislocation Part I: Elbow Anatomy and Patterns of Injury in Fracture-Dislocations.