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A trimalleolar fracture is a fracture of the ankle that involves the lateral malleolus, the medial malleolus, and the distal posterior aspect of the tibia, which can be termed the posterior malleolus. The trauma is sometimes accompanied by ligament damage and dislocation. [1]
A fractured fibula in addition to detaching the medial malleolus will tear the tibiofibular syndesmosis. [2] The combined fracture of the medial malleolus, lateral malleolus, and the posterior margin of the distal end of the tibia is known as a "trimalleolar fracture". [3] An example of Pott's fracture would be in a sports tackling injury.
In terms of fracture type, isolated malleolar fractures are most common (two-thirds of fractures); bimalleolar fractures occur in roughly 25% of patients while trimalleolar fractures occur in 5-10%. [10] Open fractures are rare, compromising 2% of all ankle fractures. [21] In children, ankle fractures occur in about 1 per 1000 per year. [3]
The zygomaticomaxillary complex fracture, also known as a quadripod fracture, quadramalar fracture, and formerly referred to as a tripod fracture or trimalar fracture, has four components, three of which are directly related to connections between the zygoma and the face, and the fourth being the orbital floor.
medial malleolus occasionally fractured; usually stable: occasionally nonetheless requires an open reduction and internal fixation (ORIF) particularly if medial malleolus fractured; Type B. Fracture of the fibula at the level of the syndesmosis. Typical features: at the level of the ankle joint, extending superiorly and laterally up the fibula
Talofibular ligament sprain or distal fibular avulsion fracture; Vertical medial malleolus fracture and impaction of anteromedial distal tibia; Supination-External rotation: Anterior tibiofibular ligament sprain; Lateral short oblique fibular fracture (anteroinferior to posterosuperior) Posterior tibiofibular ligament rupture or avulsion of ...
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In 78% of cases, a fracture of the fibula is associated with a tibial fracture. [6] Since the fibula is smaller and weaker than the tibia, a force strong enough to fracture the tibia often fractures the fibula as well. Types include: Trimalleolar fracture - involving the lateral malleolus, medial malleolus and the distal posterior aspect of the ...