Score: Mayo scaphoid # classification
Use: Acute scaphoid fractures
Stable
Displacement < 1mm
Normal intercarpal alignment
Distal pole fractures
Unstable
Displacement > 1mm
Lateral intrascaphoid angle > 35°
Bone loss or comminution
Perilunate fracture dislocation
Dorsal intercalated segmental instability (DISI) alignment
Proximal pole fracturesReference
Gutow AP. Percutaneous fixation of scaphoid fractures. J Am Acad Orthop Surg 2007; 15:474-485.