A preliminary study of a novel robotic system for pedicle screw fixation: A randomised controlled trial

作者：Zongze Li, Jian-Ting Chen, Jian-Ting Chen, Qingan Zhu, Shaoli Zheng, Zhaoming Zhong, Jincheng Yang, Dehong Yang, Hui Jiang, Wangsheng Jiang, Yongjian Zhu, Donghui Sun, Wei Huang, Jiarui Chen, Jiarui Chen · 发表于：Journal of Orthopaedic Translation · 年份：2019 · DOI：10.1016/j.jot.2019.09.002 · 被引用次数：46 · 研究领域：Spinal Fractures and Fixation Techniques、Scoliosis diagnosis and treatment、Spine and Intervertebral Disc Pathology

BACKGROUND AND OBJECTIVE: Existing orthopaedic robotic systems are almost restricted to provide guidance for trajectory direction. In the present study, a novel spinal robotic system with automatic drilling power was introduced. The aim of this study is to evaluate the feasibility and safety in pedicle screw insertion of posterior lumbar interbody fusion assisted by this novel robotic system. METHODS AND MATERIALS: A randomised controlled trial was conducted for 17 participants who were required posterior lumbar interbody fusion process. Seven (3 M/4 F) were randomly assigned to the robot-assisted group (RA group), and the other ten (4 M/6 F) were assigned to the conventional technique group (FH group). A novel robotic system was used in the RA group. All measurements were based on postoperative computed tomography (CT) data. Accuracy of screw insertion was determined using the Gertzbein and Robbins Scale. Precision was measured by the entry point deviation distance and the trajectory rotation. Other variables included operation time, radiation time, length of stay, and screw-related complications. RESULT: A total of 82 pedicle screws were placed in the 17 participants. In the RA group, 90.6% of screws placed were Grade A, and 9.4% were Grade B. In the FH group, 78.0% of screws were Grade A, 20.0% were Grade B, and 2.0% were Grade C. No statistical difference was found in the operation time, radiation time per case, and length of stay between both groups. The radiation time p...