| This study aims to measure the anatomic parameters of the sacral 1 (S1) vestibule in Chinese adults and to discuss their clinical application during iliosacral screw fixation for pelvic posterior ring injury. Three-dimensional computed tomography (CT) reconstructions were performed on 36 individuals, and the parameters of their S1 vestibules were measured. Vestibular width (VW) was 25.15±2.91 mm, vestibular height (VH) was 20.94±3.03 mm, and mean vestibular size (VS) was 400.23±85.11 mm2. The mean angle of superior inclination was 30.85°±9.22°, and the mean anterior inclination (AI) was 13.91°±6.25°. VW and VS were significantly smaller in females than in males (p<0.05), but no statistical differences were found between the left and right sides. The S1... |
