Percutaneous Direct Repair of a Pars Defect Using Intraoperative Computed Tomography Scan: A Modification of the Buck Technique.

Abstract

Case report. To describe a young adult with a pars defect undergoing percutaneous direct fixation using intraoperative computed tomography (CT) scan. Direct pars repair has been utilized since the 1960s. There are no reports in the literature describing a percutaneous technique. Using a percutaneous technique under the guide of intraoperative CT scan, a cannulated partially threaded screw was inserted across the pars defect. Surgery was completed without complication and the patient returned to preoperative activity level 3 months post-op. Postoperative CT scan showed a well-healed L4 pars defect. Percutaneous direct pars repair using intraoperative CT scan offers the advantage of minimal soft tissue dissection, thereby reducing blood loss, infection risk, and recovery time. 5.