Radial head fractures account for one-third of elbow fractures in adults. CT helps to distinguish the type of fracture based on Mason classification. Treatment depends on the fracture type and the functional range of motion. Conservative treatment is usually recommended for type 1 and type 2 fractures with a preserved range of motion. Surgery is for type 2 fractures with a low range of motion and does not respond to conservative treatment, and all types 3 and 4 fractures ^1-4.

This case is a typical example of a displaced fracture of the radial head, associated with elbow joint dislocation (Mason type 4). The treatment of this patient was surgery with internal fixation.