Posterior pelvic ring injuries: when to perform open reduction and internal fixation.

Unstable posterior pelvic ring injuries are commonly treated with percutaneous iliosacral screw fixation. Despite the efficiency of the minimally invasive technique, complications and failures occur. To maximize reduction quality and fixation stability, open techniques for pelvic ring fixation exist. Timing, approaches, clamp positioning, and implant options determine the effectiveness of the open techniques.