Figure 4.

A 65-year-old female with 8 months of intense pain. (a) Normal AP pelvis X-ray. (b) Axial computed tomography: bilateral sacral ala fractures (arrows). (c) Coronal computed tomography: bilateral sacral ala fractures (arrows). (d) Oblique computed tomography: Fracture between left and right S1-neuroforamen (arrow). (e) Sagittal midline computed tomography: horizontal fracture between S1 and S2 (arrow). It concerns a fragility fractures of the pelvis Type IVb. (f) Postoperative AP pelvic X-ray. Fractures were stabilized with transsacral bar and two iliosacral screws. (g) Pelvic inlet. (h) Pelvic outlet. (i) AP pelvic X-ray 2 years later showing the right acetabular fracture