Displaced Mason type I fractures of the radial head and neck in adults: A fifteen- to thirty-three-year follow-up study

Nonsurgical treatment of Mason type II radial head fractures in athletes. A retrospective study

“…It is generally agreed that type I fractures can be successfully treated non operatively with early mobilization (11)(12)(13)(14)(15). For Mason type III fractures potential treatment modalities include open reduction and internal fixation, radial head excision, or radial head replacement (16)(17)(18)(19) head excision after failure of conservative treatment (20,21).…”

Magnetic resonance imaging in radial head fractures: most associated injuries are not clinically relevant

“…4,24 They usually are categorized according into the Mason-Hotchkiss classification as type I to III: a type I indicates a fracture that is 2 mm displaced, a type II fracture is >2 mm displaced, and a type III fracture is a comminuted fracture of the entire radial head. 5 Radial head fractures are frequently accompanied by associated osseous, chondral, and ligamentous injuries of the ipsilateral upper extremity.…”

Radial Head Fractures

“…40 Displaced fractures are rare due to the highly constraining soft tissues present about the radial head; however, it is generally accepted that displacement of o2 mm is within the tolerance for nonsurgical treatment of radial head fractures. However, even when nondisplaced, passive range of motion (ROM) should be performed in supination and pronation to ensure there is no mechanical block.…”