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Posterior wall
1%
22/1594
Transverse
78%
1240/1594
Anterior wall
2%
33/1594
Posterior column
30/1594
Both column
16%
260/1594
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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.
3.1
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