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12 September 2020 : Clinical Research

Radiological and Clinical Differences between Tinavi Orthopedic Robot and O-Arm Navigation System in Thoracolumbar Screw Implantation for Reconstruction of Spinal Stability

Jinpeng Du1CDE, Lin Gao1BE, Dageng Huang1CD, Lequn Shan1BC, Wentao Wang1BF, Yong Fan1BF, Dingjun Hao1G, Liang Yan1AG*

DOI: 10.12659/MSM.924770

Med Sci Monit 2020; 26:e924770


BACKGROUND: Pedicle screw fixation is one of the most commonly used methods in spine surgery. We introduce a surgical robot system from China based on 3-dimensional fluoroscopy imaging and compare it with the commonly used O-arm navigation system. We study the differences in accuracy, safety, and clinical effect in auxiliary pedicle screw fixation.

MATERIAL AND METHODS: Patients who underwent thoracolumbar internal fixation in our hospital from 2017 to 2019 were divided into a robot and navigation group according to whether surgery was assisted by the Tinavi orthopedic robot or O-arm navigation system. Imaging data of patients were searched from the image system and accuracy of screw implantation was measured by Rampersaud A to D grade classification. Deviation sagittal, deviation transversal, and facet joint violation were also measured and calculated.

RESULTS: In total, 306 patients were included: 136 patients in the robot group with 760 screws implanted; 166 patients in the navigation group with 908 screws implanted. The accuracy of “perfect” and “clinically acceptable” pedicle screw implantation was 96.2% and 99.6%, respectively, in the robot group and 90.5% and 96.7%, respectively, in the navigation group, with a significant difference between the 2 groups (P<0.05). The sagittal and transversal deviations in the robot group were significantly less than those in the navigation group (P<0.05).

CONCLUSIONS: The Tinavi orthopedic robot can significantly improve surgical accuracy and safety of pedicle screw fixation, as compared with that of O-arm navigation technology, without increasing complications. It shows great potential in clinical application.

Keywords: Bone Screws, Dimensional Measurement Accuracy, Patient Navigation, Robotics, Spine


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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750