Related Experiment Video
Updated: Mar 8, 2026
05:57
A Teleoperated Robotic System-Assisted Percutaneous Transiliac-Transsacral Screw Fixation Technique
Published on: January 6, 2023
3.8K
Robotic Guidance for S2-Alar-Iliac Screws in Spinal Deformity Correction
S Samuel Bederman1, Peter Hahn, Vincent Colin
1Department of Orthopaedic Surgery, University of California-Irvine, Irvine, CA.
Clinical Spine Surgery
|January 21, 2017
Summary
Robotic guidance for S2-alar-iliac (S2AI) screw insertion in spinal deformity correction is feasible and accurate. While some screw protrusions occurred, no clinical complications were identified, suggesting robotic assistance is a viable option for sacropelvic fixation.
Area of Science:
- Spinal surgery
- Robotics in medicine
- Orthopedic surgery
Background:
- Pelvic fixation is crucial for long spinal fusions.
- S2-alar-iliac (S2AI) screw insertion offers advantages over traditional methods.
- Robotic guidance demonstrates high accuracy in implant insertion.
Purpose of the Study:
- To evaluate the feasibility and accuracy of robotic guidance for S2AI screw insertion.
- To assess the safety and efficacy of robotic-assisted sacropelvic fixation.
Main Methods:
- Retrospective cohort study of patients undergoing robotic-guided S2AI screw insertion.
- Analysis of postoperative imaging for cortical breaches and protrusions.
- Recording of intraoperative and postoperative complications.
Main Results:
- Thirty-one S2AI screws were inserted in 14 patients using robotic guidance.
- All screw trajectories were accurate with no proximal breaches.
- Minor screw protrusions (<4 mm) occurred in some cases, but no intrapelvic placement or neurovascular compromise was observed.
Conclusions:
- Robotic-guided S2AI screw insertion is a feasible and accurate technique for sacropelvic fixation.
- Further research with larger cohorts and instrumentation modifications is needed to fully assess clinical acceptance.
