Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Fluoroscopy-based navigation system in spine surgery.

P Merloz1, J Troccaz, H Vouaillat

  • 1University Department of Orthopaedic and Trauma Surgery, CHU A. Michallon, BP 217, Grenoble Cedex 09, 38043, France. PMerloz@chu-grenoble.fr

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
|November 21, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Stability of asymmetric Schwarzschild-Rindler-de Sitter thin shell wormhole.

Scientific reports·2024
Same author

Anterior approaches in acetabular fractures: a true learning curve analysis.

Acta orthopaedica Belgica·2024
Same author

Numerical treatment of the radiated and dissipative power-law nanofluid flow past a nonlinear stretched sheet with non-uniform heat generation.

Scientific reports·2023
Same author

Stability and singularity analysis of the cosmologies with different scenarios for deceleration parameter in the presence of torsion.

Heliyon·2023
Same author

Succession of failures in surgical management of fragility fracture of the pelvis.

Trauma case reports·2022
Same author

Mesoscopic open-eye core-shell spheroid carved anode/cathode electrodes for fully reversible and dynamic lithium-ion battery models.

Nanoscale advances·2022
Same journal

Assessment of adaptive trabecular bone remodeling around a knee prosthesis stem using the Weinans model.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine·2026
Same journal

Biomechanical evaluation of a fully cortical-threaded screw for modified cortical bone trajectory fixation: Combined experimental and finite element study.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine·2026
Same journal

The influence of passive prosthetic knee joints on uneven compliant surface walking among transfemoral amputees under dual-task versus single-task conditions.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine·2026
Same journal

Bone remodelling around internal fracture fixations used for treating femoral neck fractures: A finite element analysis.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine·2026
Same journal

Design of a kinematic-compatible passive spinal exoskeleton with parallelepiped units.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine·2026
Same journal

The tipping point: Friction and thigh length influence imminent falls from a tilting ski lift chair.

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine·2026
See all related articles

Computer-assisted navigation for pedicle screw insertion significantly reduces radiation exposure and improves accuracy. This system enhances surgical reliability for spinal procedures, minimizing cortex penetration compared to conventional methods.

Area of Science:

  • Neurosurgery
  • Orthopedic Surgery
  • Medical Imaging

Background:

  • Spinal pedicle anatomy presents challenges for screw insertion due to variations in width, height, and orientation.
  • Accurate pedicle screw placement is crucial for spinal instrumentation stability and patient outcomes.
  • Conventional methods often involve significant radiation exposure and potential for malplacement.

Purpose of the Study:

  • To evaluate a computer-assisted surgical navigation system for pedicle screw insertion.
  • To assess the system's impact on accuracy, reliability, and radiation exposure.
  • To compare navigated surgery with conventional techniques in the lower thoracic and lumbar spine.

Main Methods:

  • A prospective study comparing conventional (n=26 patients, 138 screws) and computer-assisted navigation (n=26 patients, 140 screws) for pedicle screw fixation.

Related Experiment Videos

  • Navigation system utilized fluoroscopic X-ray calibration and 3D optical localizers (virtual fluoroscopy).
  • Screw placement accuracy assessed via plain X-rays and post-operative CT scans.

    • Main Results:

    • Computer-assisted group showed 5% cortex penetration (7/140 screws) versus 13% (18/138 screws) in the conventional group.
    • Average radiation running time per vertebra level was significantly lower in the navigated group (3.5s vs 11.5s).
    • Operative time was comparable between groups (11.9 min vs 10 min per two screws).

    Conclusions:

    • Fluoroscopy-based computer-assisted navigation is a safe and reliable method for pedicle screw insertion in the lower thoracic and lumbar spine.
    • The system enhances surgical accuracy and reduces patient radiation exposure.
    • This technology offers a valuable alternative to conventional techniques for spinal instrumentation.