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

Electrophysiologic basis of dynamic extensor splinting.

M L Newport1, A Shukla

  • 1Department of Orthopaedic Surgery, Texas Tech University Health Sciences Center, Lubbock 79430.

The Journal of Hand Surgery
|March 1, 1992
PubMed
Summary

Dynamic extension splinting aims to improve extensor tendon injury rehabilitation by keeping muscles quiescent. However, typical splint designs failed to achieve this, with a modified splint showing 95% success in maintaining muscle inactivity.

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

Properties of Heavy Cosmic Nuclei Phosphorus, Chlorine, Argon, Potassium, and Calcium: Results from the Alpha Magnetic Spectrometer.

Physical review letters·2026
Same author

Oral manifestation and gingival biopsy contributing to the early diagnosis of Langerhans cell histiocytosis in a paediatric patient.

European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry·2026
Same author

Multidisciplinary ambulatory management of malignant bowel obstruction (MAMBO) program in patients with advanced gynecological cancers: A prospective study.

Gynecologic oncology·2025
Same author

Indian National Association for the Study of the Liver Position Statements on Prevention, Diagnosis, and Management of Hepatitis B Virus Infection in India.

Journal of clinical and experimental hepatology·2025
Same author

Management of incontinence after classic bladder exstrophy closure.

Actas urologicas espanolas·2025
Same author

Evaluating the longitudinal efficacy of platelet-rich plasma in rotator cuff surgery: a systematic review and meta-analysis.

Musculoskeletal surgery·2025

Area of Science:

  • Orthopedics
  • Rehabilitation Medicine
  • Biomedical Engineering

Background:

  • Dynamic extension splinting is increasingly used for extensor tendon injury rehabilitation.
  • The principle relies on maintaining extensor muscle quiescence during flexion and extension to reduce adhesions.
  • Previous assumptions about splint efficacy in achieving muscle quiescence require validation.

Purpose of the Study:

  • To test the electrophysiologic principle of dynamic extension splinting using electromyographic studies.
  • To evaluate the effectiveness of a standard dynamic extension splint in achieving extensor muscle quiescence.
  • To investigate the impact of splint design on achieving the desired therapeutic effect.

Main Methods:

  • Electromyographic (EMG) studies were conducted on healthy volunteers using a standard dynamic extension splint.

Related Experiment Videos

  • A modified splint design incorporating a dorsal hood to maintain 15 degrees of metacarpophalangeal flexion was developed.
  • EMG activity of the extensor digitorum communis was measured in both splint designs during simulated rehabilitation exercises.

    • Main Results:

    • Only 16% of volunteers exhibited quiescent extensor digitorum communis activity with the standard dynamic extension splint.
    • The modified splint design, with a dorsal hood, resulted in 95% of volunteers showing no extensor muscle activity.
    • Splint design significantly influences the ability to achieve extensor muscle quiescence during dynamic splinting.

    Conclusions:

    • The electrophysiologic principle of dynamic extension splinting is validated, but its effectiveness is highly dependent on splint design.
    • A modified splint design that maintains metacarpophalangeal flexion is crucial for achieving extensor muscle quiescence.
    • Further research into optimal splint design is necessary to maximize clinical benefits in extensor tendon rehabilitation.