Wedge and multifragmentary metaphyseal fractures of the proximal phalangeal neck are classified according to AO/OTA as 78.2–5.1.3A, where 2–5 indicates which finger is injured.
Comminuted fractures are often unstable.
Always confirm the fracture configuration with x-ray views in both planes.
This AP x-ray shows a multifragmentary extraarticular end segment fracture of the fifth proximal phalanx.