Table 3

AO/ASIF classification of tibia shaft fractures2

TypeFractureSubclassification
AO/ASIF, Arbeitsgemeinschaft Osteosynthesefragen/Association for the study of Internal fixation.
ASimpleA1 – spiral
A2 – oblique
A3 – transverse
BWedgeB1 – spiral wedge
B2 – bending wedge
B3 – fragmented wedge
CComplexC1 – spiral
C2 – segmental
C3 – irregular