Authors of section

Authors

Andrew Howard, Theddy Slongo, Peter Schmittenbecher

Executive Editor

James Hunter

General Editor

Fergal Monsell

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21u-M/6.1 - Monteggia lesion

A Monteggia lesion is a combination of an ulnar deformity or fracture (often distal to the coronoid) and a dislocation of the radial head. This is an unstable fracture pattern.

The fracture of the proximal ulna may be a torus/buckle deformity, an incomplete (‘greenstick’), or a complete fracture.

The dislocation of the radial head may be either dorsal or lateral. If the radial head has spontaneously reduced following injury, it may be unstable and redislocate during rehabilitation.

21u-M/6.1

X-ray showing a Monteggia lesion with oblique fracture of the ulna

Monteggia lesion with oblique fracture of the ulna

X-ray showing a Monteggia lesion with proximal (metaphyseal) ulnar fracture

Monteggia lesion with proximal (metaphyseal) ulnar fracture