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

Development of a motion-controlled in vitro elbow testing system.

Cynthia E Dunning1, Karen D Gordon, Graham J W King

  • 1Bioengineering Research Laboratory, Lawson Health Research Institute, Hand & Upper Limb Centre, St. Joseph's Health Care London, Ontario, Canada.

Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society
|April 23, 2003
PubMed
Summary

This study developed a novel motion-controlled elbow simulator for studying joint mechanics. The apparatus demonstrated high accuracy and repeatability in simulating elbow flexion pathways for both stable and unstable elbow models.

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

The Effect of an Associated Monteggia or Transolecranon Fracture Dislocation on Outcomes of Radial Head Arthroplasty.

The Journal of hand surgery·2026
Same author

Apex Posterior Overcorrection of the Ulna Increases Radial Head Stability in Anterior Monteggia Fractures: An In Vitro Biomechanical Study.

The Journal of hand surgery·2025
Same author

Radial head fractures with elbow instability and concomitant triceps disruption: a report of three cases.

JSES reviews, reports, and techniques·2025
Same author

Anteromedial coronoid facet fractures with associated injuries have inferior outcomes to isolated fractures: a clinical outcomes comparison.

Journal of shoulder and elbow surgery·2025
Same author

Endoscopic versus open carpal tunnel release: A randomized trial.

The Journal of hand surgery·2025
Same author

A pilot randomized control trial comparing posterior paramedian versus midline incisions for interbody fusions of the lumbar spine.

The spine journal : official journal of the North American Spine Society·2025

Area of Science:

  • Biomechanics
  • Orthopedic Research
  • Medical Device Engineering

Background:

  • Joint simulators are crucial for understanding joint motion, stability post-injury, and improving surgical/rehabilitation techniques.
  • Existing load-controlled devices have limitations in accurately replicating natural joint movement dynamics.

Purpose of the Study:

  • To develop a laboratory-based, motion-controlled elbow testing apparatus for simulating tendon loading and displacement in cadaveric specimens.
  • To evaluate the apparatus's performance with stable and unstable elbow models.
  • To compare the new motion-controlled system with a previous load-controlled device.

Main Methods:

  • Utilized a pneumatic actuator with a custom-written, closed-loop feedback controller for precise velocity control.

Related Experiment Videos

  • Integrated the actuator into an elbow testing system employing additional pneumatic actuators and hybrid motion/load control.
  • Tested cadaveric elbow specimens in vertical, varus, and valgus orientations.

    • Main Results:

    • The apparatus achieved high accuracy in actuator positioning and demonstrated highly repeatable elbow flexion pathways.
    • Motion pathway repeatability in both stable and unstable elbow models was superior or equivalent to the load-controlled system.
    • The resulting elbow motion velocity was more reproducible compared to the load-controlled system.

    Conclusions:

    • The developed motion-controlled elbow testing apparatus accurately and repeatably simulates human elbow joint motion.
    • This advanced simulator offers improved performance over previous load-controlled systems for biomechanical studies.
    • The apparatus is suitable for investigating joint stability and informing reconstructive and rehabilitative procedures.