Preoperative planning technique for anterior pelvis percutaneous intramedullary screw fixation.

Useful techniques have been previously described for the planning of safe transsacral-transiliac screws, but to our knowledge, no straightforward technique has been described for anterior pelvic percutaneous fixation. As this method of anterior ring fixation has demonstrated biomechanical and clinical benefits, we propose a preoperative planning technique for determining the corridor characteristics of the patient's superior pubic ramus/anterior column for fracture fixation with percutaneous intramedullary screws. This technique helps the surgeon assess what diameter of solid or cannulated screw the corridor allows and predict the length of screw needed.