Mutilating hand injuries may be classified by this scheme of Orientation, Wound type and Zone of injury:
Orientation | Wound Subtype | |||
I | Dorsal | A | Soft Tissue Loss | |
II | Palmar | B | Bony Loss | |
III | Ulnar | C | Combined Tissue Loss | |
IV | Radial | 1 | Vascularized | |
V | Transverse | 2 | Devascularized | |
VI | Degloving | |||
VII | Combined |
Zone of Injury
Zone | Radial | Central | Ulnar |
Distal | I Thumb P1, P2 |
II Index, Middle P1, P2, P3 |
III Ring, Small P1, P2, P3 |
Central | IV Thumb Metacarpal |
V Index, Middle Metacarpal |
VI Ring, Small Metacarpal |
Proximal | VII Scaphoid, Trapezium, Trapezoid |
VIII Capitate, Lunate |
IX Hamate, Triquetrum, Pisiform |