Diagnosis

Multifragmentary fracture of the ulna

print

Multifragmentary forearm fractures are usually the result of higher energy trauma, such as motor vehicle accidents, falls from heights, high velocity gunshot injuries, etc. More details about their clinical and radiographic examination see here .

Options
1.  Segmental fracture of the ulna
2.  Segmental ulnar fracture, with associated radial fracture
3.  Fragmentary segmental ulnar fracture

1.  Segmental fracture of the ulna

Segmental ulnar fractures are classified by AO/OTA as 2U2C2.

They may be associated with a dislocation of the radial head from the radiocapitellar joint; the proximal radioulnar joint is also disrupted (Monteggia). This is indicated by the qualifier (m), so if the fracture illustrated is associated with a proximal dislocation, it would be a 2U2C2(m).

2.  Segmental ulnar fracture, with associated radial fracture

When both bones are fractured, they are classified independently according to the morphology of each fracture.

For example, the injury illustrated is AO/OTA 2R2A3 2U2C2.

3.  Fragmentary segmental ulnar fracture

When both bones are fractured, they are classified independently according to the morphology of each fracture.

For example, the injury illustrated is AO/OTA 2R2A3 2U2C3.