<unk>  of ankle fractures (Types A, B and C) X-ray. The<unk>  (often known just as the<unk>  classification) is a method of describing ankle fractures. It has three categories: ;Type A Fracture of the fibula distal to the syndesmosis (the connection between the distal ends of the tibia and fibula). Typical features: * below level of the ankle joint * tibiofibular syndesmosis intact * deltoid ligament intact * 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 * tibiofibular syndesmosis intact or only partially torn, but no widening of the distal tibiofibular articulation * medial malleolus may be fractured or deltoid ligament may be torn * variable stability ;Type C Fracture of the fibula proximal to the syndesmosis. Typical features: * above the level of the ankle joint * tibiofibular syndesmosis disrupted with widening of the distal tibiofibular articulation * medial malleolus fracture or deltoid ligament injury present * unstable: requires ORIF Categories B and C imply a degree of damage to the syndesmosis itself (which cannot be directly visualised on X-ray). They are inherently unstable and are more likely to require operative repair to achieve a good outcome. Type A fractures are usually stable and can be managed with simple measures, such as a plaster of paris cast.
Danis–Weber classification
Herbert classification
Young-Burgess classification
Nissen-Lie classification
BODE index
Wassel classification
Ruedi–Allgower classification
SAMe-TT2R2 score