Mazor X Robot-Assisted Pedicle Screw Placement: A Case Series

Abstract

Pedicle screw placement is a well-established procedure in spine surgeries, and the utilization of robots in spinal surgery has been on the rise. This study aims to investigate the accuracy and screw placement time associated with the use of Mazor X robots in robotic-assisted pedicle screw placement. A retrospective case study was conducted on 12 patients with lumbar spine disease who underwent Mazor X robot-assisted surgery. Screw placement accuracy was assessed using the Gertzbein-Robinson classification. Additionally, total screw placement time and fluoroscopy time were documented for analysis. A total of 60 screws were placed in the 12 patients who received robotic-assisted pedicle screw placement. Of these screws, 98.3% were found to be within the safe zone. As the cases progressed, there was a noticeable decrease in total screw placement time and fluoroscopy time. Our findings suggest that Mazor X robotic-assisted spine surgery boasts high accuracy rates and demonstrates a decreasing trend in screw placement time and fluoroscopy time. To the best of our knowledge, our institution is the first in China to employ the Mazor X robot for pedicle screw placement surgeries and to document its associated characteristics.