Table 1. Fracture characteristics.

Type	Description
B1	Extra-articular DRF with no cortical (metaphyseal) comminution
B2	Extra-articular DRF with comminution of the dorsal cortex
B3	Complete intra-articular (radiocarpal joint) DRF with or without metaphyseal comminution of the dorsal cortex
B4	DRF with comminution of the volar cortex regardless of other coexisting fracture properties as dorsal comminution or intra-articularity
B0	DRF which cannot be classified according to the above types such as partially articular fractures, e.g., Barton's fractures, Chauffeur's fractures, or coexisting carpal fracture dislocation

Abbreviation: DRF, distal radius fracture.

Note: The classification is hierarchical, and a fracture is always given the highest possible number from the presented fracture characteristics.