Table 1.

Classification of Fracture Type

Distal Phalanx
Tuft fracture
Transverse fracture
Oblique fracture
Vertical fracture
Base fracture only
Volar base, dorsal base, or radial/ulnar base fracturea
Proximal or middle phalanx
Head fracture only
Unicondylar or bicondylar fracture
Transverse fracture
Oblique fracture
Spiral fracture
Vertical fracture
Base fracture only
Volar base, dorsal base, or radial/ulnar base fracturea
Proximal, middle, or distal phalanx
Complex multilevel fracture → unclassifiable fracture  throughout entire phalanx

*These may include fractures with various trauma mechanisms, for example, avulsion fractures, pilon fractures, and shear fractures