Authors of section

Authors

Harry Hoyen, Simon Lambert, Joideep Phadnis

Executive Editor

Simon Lambert

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Partial articular, lateral sagittal fracture

Definition

These fractures are classified by the AO/OTA as 13B1.

The fracture may be one of the following types:

  • Simple transtrochlear fracture (13B1.1)
  • Capitellar fracture (13B1.2), transcapitellar (q), or between capitellum and trochlea (r)
Partial articular, lateral sagittal, simple transtrochlear and capitellar fracture
  • Fragmentary transtrochlear fracture (13B1.3)

Lateral and frontal fracture types overlap.

Partial articular, lateral sagittal, fragmentary transtrochlear fracture

Further characteristics

The partial articular multifragmentary fractures are often associated with impaction of the posterior part of the lateral column and/or the posterior trochlea.

X-ray

AP x-ray of an adult elbow showing a partial articular fracture with fragmentation of the fracture zone (fragmentary transtrochlear fracture)

X-ray of partial articular, lateral sagittal, fragmentary transtrochlear fracture

3-D CT

3-D CT reconstruction image of the fragmentary transtrochlear fracture case above

3-D CT reconstruction of partial articular, lateral sagittal, fragmentary transtrochlear fracture
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