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Fracture line crossing the acetabulum with disruption of the iliopectineal and ilioischial lines
85%
1125/1318
Disruption of the iliopectineal and ilioischial lines, with extension into the iliac wing and obturator ring
3%
34/1318
Disruption of the iliopectineal and ilioischial lines, with extension into the obturator ring
4%
57/1318
Isolated disruption of the iliopectineal line, with an intact ilioischial ine
43/1318
Isolated disruption of the ilioischial line, with an intact iliopectineal ine
48/1318
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Transverse acetabular fractures separate the innominate bone into two fragments, the superior iliac and the inferior ischiopubic, by a single fracture line that crosses the acetabulum horizontally. The iliopectineal and ilioischial lines are disrupted on the AP pelvis radiograph. Axial CT scan of this fracture pattern at the level of the dome will show a vertical anterior to posterior fracture line. Illustrations A-C show AP and Judet pelvic radiographs of a transverse fracture. Illustration D demonstrates the axial CT appearance of this fracture type. Answer choice 2 is describing a both column injury or anterior column posterior hemitransverse, and answer choice 3 describes a T-type fracture pattern. Answer choices 4 and 5 describe an anterior column and posterior column injury respectively. Judet et al provide one of the first comprehensive reviews on acetabular surgical approaches, fracture types, and radiographic anatomy. Illustration E demonstrates the acetabular classification scheme developed by Judet.
4.4
(28)
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