The AO-ASIF (Arbeitsgemeinschaft fur Osteosynthesefragen, Association for the Study of Internal Fixation) developed a classification system for fractures, based on location and type of fracture.
Code for location: 22 (radius/ulna, diaphysis)
Locations:
(1) simple fracture (A)
(2) wedge fracture (B)
(3) complex fracture (C)
|
Simple Fracture |
Type of Fracture |
Fracture Code |
|
simple fracture of ulna, radius intact |
oblique |
A1.1 |
|
|
transverse |
A1.2 |
|
|
with dislocation of the radial head (Monteggia) |
A1.3 |
|
simple fracture of radius, ulna intact |
oblique |
A2.1 |
|
|
transverse |
A2.2 |
|
|
with dislocation of the distal radio-ulnar joint (Galeazzi) |
A2.3 |
|
simple fractures of both radius and ulna |
radius, proximal zone |
A3.1 |
|
|
radius, middle zone |
A3.2 |
|
|
radius, distal zone |
A3.3 |
|
Wedge Fracture |
Type of Fracture |
Fracture Code |
|
wedge fracture of ulna, radius intact |
intact wedge |
B1.1 |
|
|
fragmented wedge |
B1.2 |
|
|
with dislocation of the radial head (Monteggia) |
B1.3 |
|
wedge fracture of radius, ulna intact |
intact wedge |
B2.1 |
|
|
fragmented wedge |
B2.2 |
|
|
with dislocation of the distal radio-ulnar joint (Galeazzi) |
B2.3 |
|
wedge fracture one bone, simple or wedge fracture of other |
ulnar wedge and simple fracture of the radius |
B3.1 |
|
|
radial wedge and simple fracture of the ulna |
B3.2 |
|
|
ulnar and radial wedge fractures |
B3.3 |
|
Complex Fracture |
Type of Fracture |
Fracture Code |
|
complex fracture of the ulna |
bifocal, radius intact |
C1.1 |
|
|
bifocal, radius fractured |
C1.2 |
|
|
irregular |
C1.3 |
|
complex fracture of the radius |
bifocal, ulna intact |
C2.1 |
|
|
bifocal, ulnar fractured |
C2.2 |
|
|
irregular |
C2.3 |
|
complex fractures of both radius and ulna |
bifocal |
C3.1 |
|
|
bifocal of one, irregular of the other |
C3.2 |
|
|
irregular |
C3.3 |
Specialty: Surgery, orthopedic, Emergency Medicine, Critical Care, Surgery, general
