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2Reduction of displaced ankle fractures

Patterns of fracture morphology

The medial malleolus has been pushed off by the adducting talus. The traction fracture of the lateral malleolus often leaves a lateral fibular shoulder.

If the lateral traction injury is purely ligamentous, or an osseo-ligamentous failure with fracture of the tip of the lateral malleolus, the lateral buttress is substantial.