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: 23 (radius/ulna, distal)
NOTE: This classification is similar to that for the distal tibia/fibula.
Locations:
(1) extra-articular fracture (A)
(2) partial articular fracture of the radius (B)
(3) complete articular fracture of the radius (C)
|
Extra-Articular Fracture |
Type of Fracture |
Fracture Code |
|
extra-articular fracture of the ulna, radius intact |
styloid process |
A1.1 |
|
|
metaphyseal simple |
A1.2 |
|
|
metaphyseal multi-fragmentary |
A1.3 |
|
extra-articular fracture of the radius, simple and impacted |
without any tilt |
A2.1 |
|
|
with dorsal tilt (Pouteau-Colles) |
A2.2 |
|
|
with volar tilt (Goyrand-Smith) |
A2.3 |
|
extra-articular fracture of the radius, multi-fragmentary |
impacted with axial shortening |
A3.1 |
|
|
with a wedge |
A3.2 |
|
|
complex |
A3.3 |
|
Partial Articular Fracture of the Radius |
Type of Fracture |
Fracture Code |
|
partial articular fracture of the radius, sagittal |
lateral simple |
B1.1 |
|
|
lateral multi-fragmentary |
B1.2 |
|
|
medial |
B1.3 |
|
partial articular fracture of the radius, dorsal rim (Barton) |
simple |
B2.1 |
|
|
with lateral sagittal fracture |
B2.2 |
|
|
with dorsal dislocation of the carpus |
B2.3 |
|
partial articular fracture of the radius, volar rim (reverse Barton, Goyrand Smith II) |
simple with a small fragment |
B3.1 |
|
|
simple, with a large fragment |
B3.2 |
|
|
multi-fragmentary |
B3.3 |
|
Complete Articular Fracture of the Radius |
Type of Fracture |
Fracture Code |
|
complete articular fracture of the radius, articular simple, metaphyseal simple |
postero-medial articular fracture |
C1.1 |
|
|
sagittal articular fracture line |
C1.2 |
|
|
frontal articular fracture line |
C1.3 |
|
complete articular fracture of the radius, articular simple, metaphyseal multi-fragmentary |
sagittal articular fracture line |
C2.1 |
|
|
frontal articular fracture line |
C2.2 |
|
|
extending into the diaphysis |
C2.3 |
|
complete articular fracture of the radius, multi-fragmentary |
metaphyseal simple |
C3.1 |
|
|
metaphyseal multi-fragmentary |
C3.2 |
|
|
extending into the diaphysis |
C3.3 |
Specialty: Surgery, orthopedic, Emergency Medicine, Critical Care, Surgery, general
