Mason classification of radial head fractures

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The Mason classification is used to classify radial head fractures and is useful when assessing further treatment options ^1-2.

type I: ~~: non~~non-displaced radial head fractures (or small marginal fractures)
type II: ~~: partial~~partial articular fractures with displacement (>2mm)
type III: ~~: comminuted~~comminuted fractures involving the entire radial head
- IIIa: : fracture of the entire radial neck, with the head completely displaced from the shaft
- IIIb: : articular fracture involving the entire head, consisting of more than two large fragments
- IIIc: : fracture with a tilted and impacted articular segment
type IV: : fracture of the radial head with dislocation of the elbow joint

In general type I injuries can be treated conservatively whereas type II injuries require open reduction and internal fixation (ORIF). Type III injuries often require early complete excision of the radial head ².

-The Mason classification is used to classify <a href="/articles/radial-head-fractures" title="Radial Head Fracture">radial head fractures</a> and is useful when assessing further treatment options 1-2.<ul>
+The Mason classification is used to classify <a href="/articles/radial-head-fractures">radial head fractures</a> and is useful when assessing further treatment options 1-2.<ul>
~~-type I : non-displaced radial head fractures (or small marginal fractures)</li>~~
+type I: non-displaced radial head fractures (or small marginal fractures)</li>
~~-type II : partial articular fractures with displacement (>2mm)</li>~~
+type II: partial articular fractures with displacement (>2mm)</li>
~~-type III : comminuted fractures involving the entire radial head~~
~~-<ul>~~
+type III: comminuted fractures involving the entire radial head<ul>
~~-IIIa : fracture of the entire radial neck, with the head completely displaced from the shaft</li>~~
+IIIa: fracture of the entire radial neck, with the head completely displaced from the shaft</li>
~~-IIIb : articular fracture involving the entire head, consisting of more than two large fragments</li>~~
+IIIb: articular fracture involving the entire head, consisting of more than two large fragments</li>
~~-IIIc : fracture with a tilted and impacted articular segment</li>~~
+IIIc: fracture with a tilted and impacted articular segment</li>
~~-type IV : fracture of the radial head with dislocation of the elbow joint</li>~~
+type IV: fracture of the radial head with dislocation of the elbow joint</li>

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Mason classification of radial head fractures

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