Evaluation of Pelvic Volume Modification in "Open Book" Fractures Using a Three-Dimensional Model

In an “open book” pelvic ring fracture, the pubic symphysis diastasis and/or horizontal pubic branch fracture is associated with the disruption of the sacroiliac joint. The antero-posterior compression fractures type II and III (Young and Burgess Classification system) usually occurs after the impact of high-intensity energy with antero-posterior orientation, resulting in the opening of the pelvis around his craniocaudal axis. There is a direct relationship between the high mortality rate of patients and bleeding resulting from the injury [1]. In these unstable pelvic fractures the diameters of the pelvic ring increase, leading to an increased pelvic volume. The most important consequence of these geometric changes is the increase of blood loss in the retroperitoneal space [2].