The Orthopaedic Trauma Association (OTA) classified a fracture involving a metatarsal bone in the foot.
|
Toe |
Metatarsal |
|
Great (Thumb) |
T |
|
Index |
I |
|
Middle |
M |
|
Fourth (Ring) |
R |
|
Fifth (Little) |
L |
OTA designation: 81
|
Fracture Location, Type |
Designation |
|
proximal extra-articular |
A1 |
|
proximal, partial articular |
B1 |
|
proximal, articular |
C1 |
|
diaphysis, simple |
A2 |
|
diaphysis, wedge |
B2 |
|
diaphysis, complex |
C2 |
|
distal, extra-articular distal |
A3 |
|
distal, partial articular |
B3 |
|
distal, articular |
C3 |
|
Fracture |
Designation |
|
avulsion |
A1.1 |
|
simple |
A1.2 |
|
multifragmentary (wedge, complex) |
A1.3 |
|
split |
B1.1 |
|
depression |
B1.2 |
|
split/depression |
B1.3 |
|
simple articular/metaphysis |
C1.1 |
|
simple articular, multi-fragmentary metaphysis |
C1.2 |
|
multi-fragmentary articular |
C1.3 |
|
spiral |
A2.1 |
|
oblique |
A2.2 |
|
transverse |
A2.3 |
|
spiral |
B2.1 |
|
bending |
B2.2 |
|
fragmented |
B2.3 |
|
segmental |
C2.1 |
|
irregular |
C2.2 |
|
NA |
C2.3 |
|
avulsion |
A3.1 |
|
simple |
A3.2 |
|
multi-fragmentary |
A3.3 |
|
split |
B3.1 |
|
depression |
B3.2 |
|
split/depression |
B3.3 |
|
simple articular/metaphysis |
C3.1 |
|
simple articular, multi-fragmentary metaphysis |
C3.2 |
|
multi-fragmentary articular |
C3.3 |
Specialty: Surgery, orthopedic, Emergency Medicine, Critical Care, Surgery, general
