ArticleCureus2026
Accuracy Assessment of Planned Versus Actual Trajectories in Robotic-Assisted Spine Surgery Utilizing Perioperative O-Arm CT Scans.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
10 authors.
Funding
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Abstract
Study design A prospective cohort study. Objectives To find the deviations in entry point, axial angulation, and sagittal angulation between the planned trajectories versus the achieved trajectories in Mazor-X robotic spine surgery. Methods This study was conducted from December 2023 to June 2025, including 250 patients undergoing robotic-assisted pedicle screw fixation. Planned and actual screw trajectories were compared using perioperative O-arm CT scans. Results A total of 1170 screws were inserted (96 thoracic, 1074 lumbar). Mean entry deviation was 2.27 ± 1.5 mm, axial angular deviation 3.7° ± 3.7°, and sagittal deviation 3.4° ± 3.2°. A clinically acceptable placement rate of 99.7% was achieved, with only four breaches requiring revision. Operative time and screw insertion time decreased with experience, reflecting a short learning curve. Conclusion Robotic guidance using the Mazor X Stealth Edition (Medtronic, 2018, Memphis, Tennessee) ensures highly accurate and safe pedicle screw placement in spine surgery.
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