pilon fracture
Pronunciation: pee-LAWN
A high-energy fracture of the distal tibia involving the weight-bearing articular surface of the ankle.
Full Definition
A pilon fracture is a complex injury pattern involving the distal tibial metaphysis and articular surface, typically resulting from high-energy axial loading. The term 'pilon' derives from the French word for pestle, reflecting the mechanism where the talus drives into the tibial articular surface like a pestle into a mortar. These fractures are characterized by significant comminution, articular involvement, and associated soft tissue injury. Treatment is challenging due to the precarious soft tissue envelope and the need to restore articular congruity. Editors should note this specific anatomical location and injury pattern differs from other distal tibial fractures.
Usage
Usage note: Often classified using Ruedi-Allgower or AO/OTA classification systems in clinical documentation.
In Context
- "The patient sustained a complex pilon fracture requiring staged surgical treatment due to severe soft tissue swelling." — Emergency department note
- "Pilon fractures often require external fixation as a damage control measure before definitive internal fixation." — Trauma surgery protocol