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Updated: Apr 26, 2026

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Optimizing Minimally Invasive Spine Surgery: A Fully 3D CT O-Arm Navigated Workflow in MIS TLIF
Published on: October 17, 2025
915
Intraoperative portable CT-scanner based spinal navigation--a feasibility and safety study
Pavel Barsa1, Robert Frőhlich, Vladimír Beneš
1Department of Neurosurgery, Regional Hospital of Liberec, Husova str. 10, 460 63, Liberec, Czech Republic, pavel.barsa@nemlib.cz.
Acta Neurochirurgica
|July 25, 2014
Summary
This study shows intraoperative CT navigation is a safe and accurate method for spinal instrumentation. The portable CT scanner enables precise screw placement in complex surgeries.
Area of Science:
- Neurosurgery
- Spinal Surgery
- Medical Imaging
Background:
- Intraoperative CT navigation for spinal instrumentation is an evolving field.
- Advancements in imaging technology enhance precision and workflow.
- This study utilized a portable 32-slice CT scanner for planning screw placement.
Purpose of the Study:
- To evaluate the feasibility, accuracy, and safety of using intraoperative CT imaging for spinal instrumentation.
- To assess the effectiveness of a novel navigation approach in a series of surgeries.
Main Methods:
- Analysis of medical records and radiological data from 82 patients undergoing 85 spinal stabilizations.
- Evaluation of screw placement accuracy, complications, and procedural availability across spinal levels.
Main Results:
- Only 0.87% of 571 inserted screws showed incorrect positioning, with no associated injuries.
- High-quality intraoperative CT imaging was consistently achieved for navigation.
- The procedure was feasible across all spinal segments, irrespective of patient factors.
Conclusions:
- Intraoperative portable CT scanner-based navigation is effective for guiding spinal instrumentation.
- The high precision supports its use in complex spinal surgeries at any level.

