| ASIF classification of distal forearm fractures | |||
| A | Extra-articular metaphyseal fracture | A1 | Isolated Distal Ulna |
| A2 | Simple Radial Fracture | ||
| A3 | Radial Fracture with metaphyseal impaction | ||
| B | Intra-articular rim fracture (One cortex intact) |
B1 | Radial Styloid (Chauffeurs) |
| B2 | Dorsal rim (Dorsal Barton) | ||
| B3 | Volar rim (Volar Barton) | ||
| C | Complex Intra-articular (epiphysis and metaphysis involved) |
C1 | Radiocarpal joint congruity preserved |
| C2 | Articular displacement | ||
| C3 | Diaphyseal-metaphyseal involvement | ||