X-Bolt unforeseen placement complication: case report.

With the introduction of the World Hip Trauma Evaluation Four clinical trial, fixation of pertrochanteric neck of femur fractures is becoming a hot topic. In this trial, the novel X-Bolt expanding bolt implant is being compared with the current gold standard of a sliding hip screw. We present a previously undescribed complication when inserting the bolt into the femoral head, where the expandable wings penetrate the femoral neck due to misplacement of the bone crusher or the X-Bolt prosthesis. This unforeseen complication required the introduction of several additional corrective intraoperative steps.