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A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
Published on: May 11, 2020
Intraoperative, full-rotation, three-dimensional image (O-arm)-based navigation system for cervical pedicle screw
Yoshimoto Ishikawa1, Tokumi Kanemura, Go Yoshida
1Department of Orthopedic Surgery, Spine Center, Konan Kosei Hospital, Takaya Chou, Konan City, Japan. chita.peninsula@gmail.com
Journal of Neurosurgery. Spine
|July 19, 2011
Summary
The O-arm navigation system provides accurate and safe cervical pedicle screw (CPS) placement in spinal surgery. While minor perforations occurred, the system demonstrated reliability, though further techniques may enhance accuracy.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Medical Imaging
Background:
- Cervical pedicle screw (CPS) placement is crucial for posterior cervical spine stabilization.
- Ensuring accurate screw placement minimizes risks of neurovascular injury.
Purpose of the Study:
- To evaluate the reliability and accuracy of O-arm based navigation for CPS placement.
- To assess the advantages and disadvantages of using intraoperative 3D imaging in cervical spine surgery.
Main Methods:
- Retrospective analysis of 21 patients undergoing posterior cervical stabilization.
- 108 cervical pedicle screws inserted using O-arm navigation.
- Postoperative CT scans used to grade pedicle wall perforations.
Main Results:
- 88.9% of screws had no pedicle perforation (Grade 0).
- 8.3% had minor perforations (<2mm), and 2.8% had major perforations (≥2mm and <4mm).
- No neurovascular complications related to screw placement were reported.
Conclusions:
- O-arm navigation facilitates accurate and safe CPS insertion with high-resolution imaging.
- Current technology has limitations, with a small percentage of perforations occurring.
- Combining O-arm navigation with other techniques may further improve CPS placement accuracy.
