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Updated: Aug 9, 2025
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A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
Published on: May 11, 2020
8.9K
Trends in Technology for Pedicle Screw Placement: A Temporal Meta-Analysis
Anant Naik1, Bailey R MacInnis1, Annabelle Shaffer1
1Carle Illinois College of Medicine, the University of Illinois Urbana Champaign, Champaign, IL.
Spine
|February 17, 2023
Summary
Robotic pedicle screw (PS) placement is superior, showing significantly lower misplacement rates compared to freehand and 2D fluoroscopic methods. Accuracy with robotic systems has also notably improved over time.
Area of Science:
- Spinal Surgery
- Robotics in Medicine
- Orthopedic Technology
Background:
- Robotic pedicle screw (PS) placement has shown success, but its accuracy relative to other methods remains unclear.
- This study addresses the need for a comprehensive comparison of PS placement techniques.
Approach:
- A systematic review adhering to PRISMA Guidelines was conducted on studies published between January 2000 and August 2021.
- Data from 127 studies involving 77,360 pedicle screws across five modalities were analyzed.
- Meta-regression assessed placement accuracy and misplacement rates, with P values adjusted using Tukey post hoc correction.
Key Points:
- Robotic navigation demonstrated a significant increase in PS placement accuracy over time (P=0.036).
- Robotics yielded the lowest PS misplacement rates compared to freehand (P=0.0015) and 2D fluoroscopic navigation (P=0.026).
- No significant changes in accuracy over time were observed for freehand, 2D fluoroscopic, 3D fluoroscopic, or CT navigation methods.
Conclusions:
- Robotic pedicle screw placement is superior due to significantly lower misplacement rates compared to other modalities.
- Intraoperative 3D fluoroscopic navigation showed comparable misplacement rates to robotics.
- Continuous improvement in robotic PS placement accuracy highlights technological stability and potential for future advancements.
