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Updated: May 18, 2026
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A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
Published on: May 11, 2020
Computer-assisted fluoroscopic navigation of percutaneous spinal interventions.
Jörg A K Ohnsorge1, Khaled H Salem, Andreas Ladenburger
1Helmholtz-Institute of Biomedical Technologies, RWTH Aachen University, Aachen, Germany. joerg.ohnsorge@kk-om.de
Summary
A novel epi-dynamic reference base (epiDRB) allows safe and accurate percutaneous spine navigation. This minimally invasive technique avoids additional incisions, reducing trauma and radiation exposure during spinal procedures.
Area of Science:
- Minimally Invasive Spine Surgery
- Medical Navigation Technology
- Image-Guided Interventions
Background:
- Percutaneous spine procedures can be challenging and prone to complications.
- Current navigation systems, like dynamic reference bases (DRB), may require additional incisions, compromising the minimally invasive nature of the procedure.
Purpose of the Study:
- To introduce and evaluate a new concept of atraumatic referencing for percutaneous spine navigation.
- To assess the accuracy and clinical utility of a novel epi-dynamic reference base (epiDRB).
Main Methods:
- Development of a novel epiDRB with skin fixation using adhesive foil.
- Experimental validation of navigated needle placement accuracy in soft tissue and bone.
- CT-based 3D computer system analysis of axial and pin-point deviations.
- Clinical evaluation in a series of ten patients.
Main Results:
- The epiDRB demonstrated convenience and reliability in clinical application.
- Skin fixation with adhesive foil provided a stable reference for navigation.
- Improved workflow, reduced radiation exposure, and complication avoidance were observed.
Conclusions:
- Percutaneous spine interventions can be navigated safely and accurately using the epiDRB.
- The technique offers minimal trauma and radiation exposure.
- The epiDRB eliminates the need for additional skin incisions, preserving the percutaneous nature of the procedure.
