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

Cervical vertebral strain measurements under axial and eccentric loading

F A Pintar1, N Yoganandan, M Pesigan

  • 1Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, USA.

Journal of Biomechanical Engineering
|November 1, 1995
PubMed
Summary

Researchers identified the stiffest axis in the lower cervical spine to minimize deformation during compression. This region, located anterior to the posterior longitudinal ligament, is crucial for understanding spinal injury 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

Human pelvis injury risk curves from underbody blast impact.

BMJ military health·2021
Same author

Hierarchical process using Brier Score Metrics for lower leg injury risk curves in vertical impact.

BMJ military health·2019
Same author

A point-wise normalization method for development of biofidelity response corridors.

Journal of biomechanics·2015
Same author

Sensitivity of head and cervical spine injury measures to impact factors relevant to rollover crashes.

Traffic injury prevention·2015
Same author

Biomechanical responses due to discitis infection of a juvenile thoracolumbar spine using finite element modeling.

Medical engineering & physics·2014
Same author

Toward a more robust lower neck compressive injury tolerance-an approach combining multiple test methodologies.

Traffic injury prevention·2013

Area of Science:

  • Biomechanics
  • Spinal Anatomy
  • Orthopedic Research

Background:

  • The mid to lower cervical spine is frequently affected by compression injuries.
  • Understanding localized strain distribution is vital for injury prevention and treatment.

Purpose of the Study:

  • To determine strain distribution patterns in human cadaveric cervical spine segments.
  • To identify the stiffest axis and balance point under various loading conditions.

Main Methods:

  • Miniature strain gages were applied to human cadaveric cervical vertebrae.
  • Line-loading was performed incrementally from anterior to posterior to simulate compression-flexion/extension.
  • Uniform compressive loading and failure tests were also conducted.

Related Experiment Videos

Main Results:

  • The stiffest axis, where deformation is minimized for a given force, was identified 0.5-1.0 cm anterior to the posterior longitudinal ligament.
  • This region also served as the balance point, with minimal strain and where vertebral body strains transition from compressive to tensile.
  • Minimum strain in this region became more pronounced at higher loading magnitudes.

Conclusions:

  • The identified stiffest axis is critical for understanding cervical spine stability and injury mechanisms.
  • This region's properties are essential for developing effective treatments and surgical strategies for cervical spine injuries.