Herbert and Fisher classified fractures of the scaphoid bone in the wrist. The authors are from Sydney Hospital and the University of New South Wales in Australia.
Parameters:
(1) stable vs unstable
(2) acute vs nonunion
(3) fracture location
Timing |
Stability |
Fracture Location |
Type |
acute |
stable |
tubercle |
A1 |
acute |
stable |
"crack" (hairline) at waist |
A2 |
acute |
unstable |
oblique of distal third |
B1 |
acute |
unstable |
displaced or mobile fractures of waist |
B2 |
acute |
unstable |
proximal pole |
B3 |
acute |
unstable |
fracture dislocation of carpus |
B4 |
acute |
unstable |
comminuted |
B5 |
delayed union |
NA |
NA |
C |
established non-union |
NA |
fibrous non-union |
D1 |
established non-union |
NA |
sclerotic non-union (pseudo-arthrosis) |
D2 |
Specialty: Surgery, orthopedic, Emergency Medicine, Critical Care, Surgery, general