Ankle fracture: Weber B3

Discussion:

Weber ankle fracture is an easy system to classify lateral malleolar fractures in relation to the ankle joint.

Classification:

Type A: below the level of the talar dome. Tibiofibular syndesmosis intact. Usually stable if medial malleolus intact.

Type B: distal extent at the level of the talar dome & may extend some distance proximally. tibiofibular syndesmosis usually intact but widening of the distal tibiofibular joint may be seen. Variable stability. Subtypes:

  • B1: isolated
  • B2: associated with a medial lesion in (malleolus or ligament) 
  • B3: associated with a medial lesion and fracture of posterolateral tibia (as in our case)

Type C: above the level of the ankle joint with disruption of tibiofibular syndesmosis with widening of the distal tibiofibular articulation.Unstable: usually requires ORIF. Subtypes:

  • C1: simple diaphyseal fracture of the fibula
  • C2: complex diaphyseal fracture of the fibula
  • C3: proximal fracture of the fibula

Special thanks to Dr. Mohamed Ashfaque Kukkady.

 

 

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