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Review Question - QID 505

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QID 505 (Type "505" in App Search)
A 42-year-old female sustains the injury seen in the computed tomography images seen in Figures A and B. According to the Letournel classification, what is the injury pattern shown?
  • A
  • B

Posterior wall

1%

21/1557

Transverse

78%

1213/1557

Anterior wall

2%

32/1557

Posterior column

2%

27/1557

Both column

16%

255/1557

  • A
  • B

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The axial CT cut and Judet radiographic view shown reveals a transverse fracture pattern according to the Letournel classification system. This can be determined by the fact that the articular surface of the acetabulum is attached to the intact portion of the ilium, which is connected to the axial skeleton posteriorly through the sacroiliac joint. This differs from a both-column fracture, in which the articular surface of the acetabulum has no attachments to the axial skeleton due to fracture line(s). The axial CT scan also shows a vertical fracture line which is typical of a transverse fracture pattern.

Durkee et al review the classification schemes for these injuries, as well as comment on the importance of quality images (Judet views, CT, etc).

Figures A and B show a transverse acetabular fracture with mild displacement.

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