BioMed Research International

Research Article

Anatomical Location of the Common Iliac Veins at the Level of the Sacrum: Relationship between Perforation Risk and the Trajectory Angle of the Screw

Table 2

Distance between the anterior wall of S1 vertebral body and the nearest wall of common iliac veins on the right and left sides.
 Toward tip of S1 endplate (mm)Parallel to S1 endplate (mm)
 MeanICC (95% CL)MeanICC (95% CL)
DR0.82 (0.71–0.89)0.81 (0.70–0.88)
DL0.84 (0.74–0.90)0.84 (0.74–0.90)
value0.016 0.0763 
DR: distance between the right CIV and anterior wall of S1 vertebral body on the right side; DL: distance between the left CIV and anterior wall of S1 vertebral body on the left side.