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

Analysis of finger extensor mechanism strains

P T Hurlbut1, B D Adams

  • 1University of Vermont, Department of Orthopaedics and Rehabilitation, Burlington, USA.

The Journal of Hand Surgery
|September 1, 1995
PubMed
Summary

This study validates Landsmeer

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

Non-constrained implant arthroplasty for the distal radioulnar joint.

The Journal of hand surgery, European volume·2017
Same author

cel-mir-237 and its homologue, hsa-miR-125b, modulate the cellular response to ionizing radiation.

Oncogene·2016
Same author

Kinetics of Oxygen Reduction in Aprotic Li-O2 Cells: A Model-Based Study.

The journal of physical chemistry letters·2015
Same author

Honoring the Admiral: Boerhaave-van Wassenaer's syndrome.

Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus·2006
Same author

Anatomic Reconstruction of the Distal Radioulnar Ligaments for DRUJ Instability.

Techniques in hand & upper extremity surgery·2006
Same author

The anion gap does not accurately screen for lactic acidosis in emergency department patients.

Emergency medicine journal : EMJ·2006

Area of Science:

  • Biomechanics
  • Orthopedics
  • Hand Surgery

Background:

  • The extensor mechanism is crucial for finger function.
  • Understanding its mechanics is key to treating deformities like boutonnière and claw hand.
  • Existing theories provide a framework but require experimental validation.

Purpose of the Study:

  • To quantitatively measure strains within the finger's extensor mechanism.
  • To evaluate the influence of joint position and tendon loading on these strains.
  • To validate existing biomechanical theories and assess the impact of boutonnière deformity.

Main Methods:

  • Utilized a cadaver finger model.
  • Employed Hall-effect transducers to measure strain.
  • Tested various joint positions and intrinsic/extrinsic tendon loading conditions.
  • Simulated boutonnière deformity to observe its effects.

Main Results:

  • Results strongly support Landsmeer's theory of obligatory interactions within the extensor mechanism.
  • Confirmed the biomechanical principles behind the Bunnell intrinsic-tightness test.
  • Findings align with clinical observations of claw and boutonnière deformities.

Conclusions:

  • Strain analysis is a valid and effective method for evaluating the extensor mechanism.
  • The study provides experimental evidence supporting current theories on finger biomechanics.
  • Strain analysis holds potential for in vivo surgical applications in hand surgery.

Related Experiment Videos