Figure 1.

(A): The schematic diagram of percutaneous crossed screw fixation; (B): A typical Day type-II pelvic crescent fracture-dislocation accrding to anteroposterior pelvic radiograph and CT scan, the black arrow shows the crescent fracture fragment; (C) preoperatively, the white arrow shows the crescent fracture line,. D: Closed reduction and percutaneous crossed fixation with one posterior iliac screw and one sacroiliac joint screw, pelvic X-ray postoperatively is satisfactory.