Medial malleolus fracture

Trimalleolar fracture

Bone deformity

Right trimalleolar fracture with a posterior dislocation of the talus. The fragment and transverse fracture of the medial malleolus are drawn here.

Lateral malleolus fracture

Trimalleolar fracture

Lateral malleolus spiral fracture involving the tibiofibular syndesmosis. The distal fragment of the lateral fibula is drawn here.

Posterior malleolus fracture

Trimalleolar fracture

Bone deformity

The posterior fragment of the tibia is drawn here.

Joint surface

The percentage of the posterior malleolus affected by the fracture is measured.

Posterior dislocation of the talus

The talar body is significantly posterior to the distal tibia. The tibiotalar alignment is clearly abnormal.