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Updated: Jun 29, 2025
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A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
Published on: May 11, 2020
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A Propensity Score-Matched Cohort Study Comparing 3 Different Spine Pedicle Screw Fixation Methods: Freehand,
Yoon Ha Hwang1, Byeong-Jin Ha2,3, Hyung Cheol Kim2,4
1Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
Neurospine
|April 3, 2024
Summary
Robotic spine surgery demonstrates superior accuracy in lumbar degenerative disease compared to conventional methods. This advanced technique, when combined with minimally invasive surgery, offers significant advantages for patients.
Area of Science:
- Spine Surgery
- Robotics in Medicine
- Orthopedic Surgery
Background:
- Lumbar degenerative disease necessitates effective surgical interventions.
- Conventional pedicle screw fixation techniques carry risks of inaccuracy.
- Robotic assistance is emerging as a potential improvement in spinal surgery.
Purpose of the Study:
- To compare the accuracy of robotic spine surgery versus conventional pedicle screw fixation.
- To evaluate clinical and radiological outcomes of robotic versus conventional lumbar fusion.
- To demonstrate the noninferiority and potential superiority of robotic surgery.
Main Methods:
- Propensity score matching of 162 patients into three groups: robotic-assisted PLIF (RS), C-arm guided MIS TLIF (CG), and freehand open PLIF (FG).
- Evaluation of surgical accuracy using Gertzbein-Robbins (GRS) and Babu scales.
- Assessment of radiological outcomes (adjacent segmental disease, mechanical failure) and clinical outcomes (pain, disability, quality of life).
Main Results:
- Robotic surgery (RS) group showed significantly higher accuracy (p < 0.01) compared to CG and FG groups.
- No significant differences in overall radiological or clinical outcomes were found between the three groups.
- Preoperative facet degeneration and screw accuracy scores (GRS, Babu) were significant predictors of adjacent segmental disease.
Conclusions:
- Robotic spine surgery offers superior accuracy for pedicle screw placement in lumbar degenerative disease.
- Combining robotic assistance with minimally invasive techniques may reduce surgical trauma compared to open procedures.
- Further research into long-term outcomes and cost-effectiveness is warranted.
