Score: Ankle fractures
Use: AO (ASIF) classification
Group A
A1: infrasyndesmotic lesion, isolated
A2: infrasyndesmotic lesion, with a fracture of the medial malleolus
A3: infrasyndesmotic lesion, with a posteromedial fracture
Group B
B1: transsyndesmotic fibula fracture, isolated
B2: transsyndesmotic fibula fracture, with a medial lesion
B3: transsyndesmotic fibula fracture, with a medial lesion and Volkmann (posterolateral rim) fracture
Group C
C1: suprasyndesmotic lesion, diaphyseal fracture of the fibula, simple
C2: suprasyndesmotic lesion, diaphyseal fracture of the fibula, multifragmentary
C3: suprasyndesmotic lesion, proximal fibulaReference
Classification and Diagnosis in Orthopaedic Trauma. Editors: Rahij Anwar, Kenneth W. R. Tuson, Shah Alam Khan. Cambridge University Press, 2008