Theopold J, et al. – This study was carried out to assess the accuracy of perforation detection with multiplanar reconstructions applying a mobile 3D image intensifier. According to the findings, in order to reveal all of the intraoperative and postoperative screw perforations in a “five screw configuration”, conventional anterior–posterior radiographic (AP) images should be established in both the neutral positions (0°), at 30° internal rotation and 30° external rotation. Alternatively, the intraoperative 3D scan with multiplanar reconstructions enables a 100% rate of detection of the screw perforations.