| Classification | Description | Notes |
| 1 | Extra-articular fractures | |
| 2 | 1 + ulnar Styloid fracture | |
| 3 | Intra-articular fractures involving the radio-carpal joint | |
| 4 | 3 + ulnar Styloid fracture | |
| 5 | Intra-articular fractures involving the distal radio-ulnar joint (DRUJ) | |
| 6 | 5 + ulnar Styloid fracture | |
| 7 | Intra-articular fractures involving both the radio-carpal and the DRUJ | |
| 8 | 7 + ulnar Styloid fracture |
Reference:
Frykman, G. (1967). “Fracture of the distal radius including sequelae–shoulder-hand-finger syndrome, disturbance in the distal radio-ulnar joint and impairment of nerve function. A clinical and experimental study.” Acta Orthop Scand: Suppl 108:103+.