Fig. 2

Injury anteroposterior (AP) pelvis radiograph (a). Reconstruction views of axial CT (b) and coronal CT (c) showed that there was a presence of dysmorphism at the upper sacral segment, and the second sacral segment existed a corridor for a transiliac-transsacral screw. The guidewire was inserted into the starting point on the fracture side (d) with a true lateral sacral view (e). Intraoperative fluoroscopic inlet (f) and outlet (g) views confirmed the position of guidewire was satisfactory