Abstract
Knowledge of the bony thickness of the acetabular columns is one requisite for safe
execution of percutaneous fixation of acetabular fractures. We performed a cadaveric
study to determine anatomical dimensions of the columns of acetabulum with reference
to percutaneous screw fixation. Twenty-two hemipelves (11 pairs) from 6 male and 5
female cadavers were measured and statistically analysed.
In the anterior column, the psoas groove displayed the least vertical thickness of
15.1 mm (range, 12.1–18.2 mm), followed by the obturator canal with 15.9 mm (range, 12.2–20.6 mm). The mean thickness of the posterior column wall of the acetabulum along the screw
path displayed 21.3 mm (range, 16.5–30.3 mm). This study provides a clinical map for safe passage of both antegrade and retrograde
percutaneous screws. Anatomic data suggests that 7.3 mm cannulated screws can be safely accommodated by the anterior and posterior columns
of the acetabulum.
Keywords
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Article info
Publication history
Accepted:
August 3,
2009
Identification
Copyright
© 2009 Elsevier Ltd. Published by Elsevier Inc. All rights reserved.
