Classification
Type I: An undisplaced fracture of the radial head
Type II: A marginal radial head fracture with minimal displacement, depression, or angulation
Type III: A comminuted radial head fracture
Type IV: A radial head fracture with elbow dislocation
Explanation
In 1954, Mason proposed a classification system in which he divided radial head fractures into three types; Johnston added a fourth type in 1962.
Figures
Reference(s)
Provide the citation for the landmark article and recent review articles describing the classification
