Interventional 3D analysis is often used for surgery of the spine. The goal of this study was to describe the technique and initial results of intraoperative 3D CT navigation (O-Arm, Medtronic, Louisville, CO, USA) for surgery of the pelvis. Si
x patients were included, five with primary bone tumors and one with post-traumatic non-union. All CT procedures were completed without modifying the surgical technique, e
xcept one case in which the device had to be reinstalled during surgery. The duration of surgery was not increased and lasted for a mean 224
xA0;minutes (96–380). Recorded radiation was between 450–1125
xA0;mGrey/cm. All procedures were performed according to the preoperative plan resulting in systematic resection with a safe surgical margin (R0). One surgical site infection occurred. Although these operations could have been performed without 3-D navigation, this technique provided continuous intraoperative control and safety.
Level of evidence
IV.