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Supra‐acetabular external fixation for pelvic fractures: A digital anatomical study
Author(s) -
Wang Fang,
Song Haihan,
Zhao Fei,
Yang Qing,
Tang Hao,
Ji Xiaoxi,
Wang Qian,
Wang Zheng,
Wang Qiugen
Publication year - 2012
Publication title -
clinical anatomy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 71
eISSN - 1098-2353
pISSN - 0897-3806
DOI - 10.1002/ca.21263
Subject(s) - medicine , anterior superior iliac spine , pelvic fracture , fixation (population genetics) , surgery , pelvis , population , environmental health
Supra‐acetabular external fixation is an important tool for pelvic fractures. Understanding the anatomical characteristics of anterior inferior iliac spine (AIIS) is crucial for the operation. Here, we analyzed the morphology of AIIS and adjacent structures via a digital measurement mode. One hundred and twenty normal pelvic computed tomography (CT) scans were converted into three‐dimensional digital models and their parameters were measured by Geomagics software. We obtained the values of 13 important AIIS anatomical characteristics, which were the perpendicular distance of the anterior superior iliac spine(ASIS) and AIIS (PDASIS‐AIIS), the perpendicular distance between the AIIS and superior pubic tubercle (PDAIIS‐PT), the distance between the AIIS and anterior median line (HDAIIS‐ML), the angle of the pin tract line and the horizontal plane (AHOR), the transverse diameter of AIIS (TD), and the minimum diameter of the pin tract plane (DMIN), etc. Among them, six parameters showed significant difference between male and female (PDASIS‐AIIS: P =0.040, PDAIIS‐PT: P = 0.001, HDAIIS‐ML: P = 0.019, AHOR: P = 0.021, TD: P < 0.001, and DMIN: P = 0.003, respectively). These results provided references in locating pinning site for a safer and more accurate supra‐acetabular external fixation and also suggested that gender difference should be considered during the surgery. Clin. Anat. 25:503–508, 2012. © 2011 Wiley Periodicals, Inc.