A Rare Case of Ipsilateral Radial Head, Neck, and Shaft Fracture With Intact Ulna in a Young Adult.

Fractures involving multiple levels of the radius are rare and often associated with ulnar involvement or distal radius injury. We report a previously undocumented injury pattern: a comminuted ipsilateral fracture of the radial head, neck, and shaft, with an intact ulna, in a 28-year-old male following road traffic trauma. The classification system of the Arbeitsgemeinschaft für Osteosynthesefragen (AO), also known as the Working Group for Osteosynthesis Questions, does not include this type of fracture configuration. The patient underwent open reduction and internal fixation using a headless screw construct for the radial head and a mini fragment locking plate spanning from the shaft to the radial head. Despite the rare pattern of injury and complexity involved, the patient achieved satisfactory early functional outcomes. This case highlights the importance of recognising rare radial fracture patterns and employing tailored fixation strategies to restore function, anatomical alignment, and stability.