Ankle fracture - Weber C
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Avulsion of the malleolus tertius.
Spiral fracture of the middle fibular shaft.
Suspected fracture of the posterior tubercle of the talus versus Os trigonum.
Weber C = Suprasyndesmotic fracture of the ankle includes:
- Rupture of the medial collateral ligament or avulsion of the medial malleolus.
- Rupture of the anterior syndesmosis.
- Fibula fracture above the level of the syndesmosis
- Avulsion of the malleolus tertius.
Weber C stage 3-4 are unstable.
The Maisonneuve fracture is a special form of the Weber C fracture. What makes it different is that the fracture of the fibula has to be demonstrated within the proximal third of the fibula shaft.