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. 2008 Jul 10;3(2):71–74. doi: 10.1007/s11751-008-0038-8

Table 1.

The Mason–Johnston classification of radial head fractures [7]

Mason type Description
1 Non-displaced fracture
2 Minimal displacement with angulation or impression (>2 mm)
3 Comminuted fracture with dislocation
4 Radial head fracture with luxation of the elbow