Research Article| Volume 41, ISSUE 4, P339-342, April 2010

Mapping the columns of the acetabulum—Implications for percutaneous fixation


      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.


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        • Ebraheim N.A.
        • Xu R.
        • Biyani A.
        • Benedetti JA
        Anatomic basis of lag screw placement in the anterior column of the acetabulum.
        Clin Orthop Relat Res. 1997; 339: 200-205
        • Giannoudis P.V.
        • Grotz M.R.
        • Papakostidis C.
        • Dinopoulos H.
        Operative treatment of displaced fractures of the acetabulum. A meta-analysis.
        J Bone Joint Surg Br. 2005; 87: 2-9
        • Giannoudis P.V.
        • Tzioupis C.C.
        • Pape H.C.
        • Roberts C.S.
        Percutaneous fixation of the pelvic ring: an update.
        J Bone Joint Surg Br. 2007; 89: 145-154
        • Letournel E.
        • Judet R
        Fractures of the acetabulum.
        2nd ed. 1993
        • Matta J.M.
        Fractures of the acetabulum: accuracy of reduction and clinical results in patients managed operatively within three weeks after the injury.
        J Bone Joint Surg Am. 1996; 78: 1632-1645
        • Matta J.M.
        • Anderson L.M.
        • Epstein H.C.
        • Hendricks P
        Fractures of the acetabulum. A retrospective analysis.
        Clin Orthop Relat Res. 1986; 205: 230-240
        • Matta J.M.
        • Mehne D.K.
        • Roffi R.
        Fractures of the acetabulum. Early results of a prospective study.
        Clin Orthop Relat Res. 1986; 205: 241-250
        • Mouhsine E.
        • Garofalo R.
        • Borens O.
        • et al.
        Percutaneous retrograde screwing for stabilisation of acetabular fractures.
        Injury. 2005; 36: 1330-1336
        • Parker P.J.
        • Copeland C.
        Percutaneous fluoroscopic screw fixation of acetabular fractures.
        Injury. 1997; 28: 597-600
        • Sanders M.B.
        • Starr A.J.
        • Reinert C.
        Percutaneous screw fixation of acetabular fractures in elderly patients.
        Curr Opin Orthop. 2006; 17: 17-24
        • Starr A.J.
        • Reinert C.M.
        • Jones A.L.
        Percutaneous fixation of the columns of the acetabulum: a new technique.
        J Orthop Trauma. 1998; 12: 51-58