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A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
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Axial translaminar screw placement using three-dimensional fluoroscopy-based navigation.

S Rajasekaran1, A Avadhani, A P Shetty

  • 1Department of Orthopaedics and Spine Surgery, Ganga Hospital, 313 Mettupalayam Road, Coimbatore 641043, Tamil Nadu, India. sr@gangahospital.com

Singapore Medical Journal
|February 8, 2011
PubMed
Summary
This summary is machine-generated.

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C2 translaminar screws offer rigid axis fixation. Using 3D fluoroscopy-based navigation enhances accuracy and safety, preventing spinal canal violations and ensuring successful fusion in patients.

Area of Science:

  • Neurosurgery
  • Spinal Surgery
  • Orthopedic Surgery

Background:

  • C2 laminar screws are an alternative to C2 pars or pedicle screws for axis fixation, aiming to reduce vertebral artery injury.
  • While generally safe, C2 laminar screw placement carries a risk of ventral spinal canal violations.
  • Limited literature exists on the use of 3D fluoroscopy-based navigation for C2 laminar screw insertion.

Purpose of the Study:

  • To evaluate the accuracy and safety of C2 translaminar screws inserted with 3D fluoroscopy-based navigation.
  • To assess the potential of image guidance to improve C2 laminar screw placement compared to traditional methods.

Main Methods:

  • Retrospective analysis of data from a single center.
  • Five C2 translaminar screws were inserted in four patients using 3D fluoroscopy-based navigation.

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  • Postoperative computed tomography (CT) imaging was used to assess screw accuracy and fusion rates.

    • Main Results:

    • No complications or breaches of the laminar wall (dorsal or ventral) were observed.
    • Successful spinal fusion was achieved in all four patients by the six-month follow-up.
    • The average setup time for the navigation system was 18 minutes.

    Conclusions:

    • 3D fluoroscopy-based navigation significantly enhances the accuracy of C2 translaminar screw insertion.
    • This technology provides real-time imaging, aiding in precise screw placement and sizing.
    • Image-guided C2 translaminar screw insertion is a safe and effective technique for axis fixation.