Fig. 1

Sacroiliac screw placement. (A 36-year-old man with anterior and posterior pelvic ring injuries caused by a fall. a–c Fluoroscopic images of guide needle placement, a anteroposterior view, b inlet view, c outlet view; d–f sacroiliac screw placement: d drilling, e screw placement, f completed screw placement; g–i fluoroscopic images of the placed sacroiliac screw, g anteroposterior view, h inlet view, i outlet view.)