Fracture Classification
AO/ASIF
| Type | Description |
|---|---|
| Type A: extra-articular | A1: simple A2: metaphyseal butterfly A3: metaphyseal comminution |
| Type B: partial articular | B1: lateral condyle B2: medial condyle B3: frontal plane fracture |
| Type C: complete articular | C1: bicondylar C2: bicondylar, metaphyseal multifragmentary C3: articular multifragmentary |
Reviewed by Professor Phong Tran, Head of Orthopaedic Surgery, Western Health. Last updated 10 October 2026.