trimalleolar fracture


tri·mal·le·o·lar frac·ture

a fracture of the ankle through the lateral malleolus of the fibula and the medial malleolus and posterior process of the tibia.
A trimalleolar fracture of the ankle involving both—medial and lateral—malleoli and the posterior articular margin of the distal tibia—posterior 'malleolus'; the last fragment is dislocated posteriorly and/or superiorly

trimalleolar fracture

A fracture of the lateral and medial malleoli of the ankle joint with an additional fracture of the posterior edge of the distal tibia.See also: fracture