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

Instrumented rod rotator system for spinal surgery.

E Lou1, D L Hill, J V Raso

  • 1Capital Health Authority, Glenrose Rehabilitation Hospital, Edmonton, Alberta, Canada. Edmond_lou@shaw.ca

Medical & Biological Engineering & Computing
|September 14, 2002
PubMed
Summary

A new instrumented rod rotator accurately measures surgical forces during spinal correction. This device helps quantify surgeon effort in derotation maneuvers, improving understanding of spinal surgery biomechanics.

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

Pre-calving lying duration is associated with transition cow health and performance in multiparous dairy cows.

Journal of dairy science·2026
Same author

Exploring the differences in the tumor microenvironment and immuno-oncologic targets in pancreatic ductal adenocarcinomas (PDAC) according to <i>KRAS</i> mutational status.

ESMO gastrointestinal oncology·2026
Same author

Validation of an AI-enabled exome/transcriptome liquid biopsy platform for early detection, MRD, disease monitoring, and therapy selection for solid tumors.

Scientific reports·2025
Same author

Targeting Neutrophil Extracellular Traps to inhibit Colon Cancer Tumor Necrosis and Metastasis.

bioRxiv : the preprint server for biology·2025
Same author

Uncovering PD-L1 among immune cell predictive biomarkers and actionable genetic alterations in anal squamous-cell carcinomas in the era of immunotherapy.

ESMO open·2025
Same author

Assessing transition cow management in dairy cows for improved health, milk production, pregnancy, and culling outcomes.

Journal of dairy science·2024

Area of Science:

  • Biomedical Engineering
  • Orthopedic Surgery
  • Surgical Instrumentation

Background:

  • Spinal curvature correction often involves a derotation maneuver.
  • Quantifying forces and moments during this maneuver is crucial for surgical technique optimization.
  • Existing methods lack precise real-time force and moment measurement capabilities.

Purpose of the Study:

  • To develop and validate an electronically instrumented rod rotator.
  • To monitor forces and moments applied by surgeons during spinal derotation.
  • To provide real-time feedback on surgical load application.

Main Methods:

  • An instrumented rod rotator was designed incorporating an inclinometer and strain gauges.
  • Data acquisition system sampled inclinometer and strain gauge data in real time.

Related Experiment Videos

  • The device underwent laboratory calibration and was tested on seven surgical subjects.

    • Main Results:

    • The device achieved a load measurement precision of +/- 5 N within the 5-65 N range.
    • Maximum surgeon-applied loads ranged from 22 to 57 N.
    • Torque generated during the maneuver ranged from 4.6 to 12 Nm.

    Conclusions:

    • The developed instrumented rod rotator reliably measures forces and moments during spinal derotation.
    • This technology offers valuable insights into surgical biomechanics for spinal deformity correction.
    • Real-time monitoring can aid in standardizing surgical techniques and potentially improve patient outcomes.