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

Experimental epiphyseal separation by torsional force.

J Peltonen, K Aalto, E Karaharju

    Journal of Pediatric Orthopedics
    |September 1, 1984
    PubMed
    Summary

    This study investigated tibial epiphysis separation in adolescent sheep. Older sheep required more force for separation, with fracture patterns changing with skeletal maturity.

    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

    Average demands and most demanding passages of national-level female soccer matches: do small- and large-sided games replicate match demands?

    Frontiers in sports and active living·2023
    Same author

    The feasibility of existing JADAS10 cut-off values in clinical practice: a study of data from The Finnish Rheumatology Quality Register.

    Pediatric rheumatology online journal·2023
    Same author

    Transition to adult care in Finnish adolescents with juvenile idiopathic arthritis.

    Scandinavian journal of rheumatology·2022
    Same author

    Initiating disease-modifying anti-rheumatic drugs rapidly reduces purchases of analgesic drugs in juvenile idiopathic arthritis.

    Scandinavian journal of rheumatology·2020
    Same author

    A low-cost paper-based platform for fast and reliable screening of cellular interactions with materials.

    Journal of materials chemistry. B·2020
    Same author

    Pain interference and associated factors in young adults with juvenile idiopathic arthritis.

    Scandinavian journal of rheumatology·2019

    Area of Science:

    • Orthopedic research
    • Biomechanical engineering
    • Skeletal development

    Background:

    • Tibial plateau fractures are common in adolescents.
    • Understanding physeal separation mechanisms is crucial for injury prevention and treatment.
    • Previous studies have not fully elucidated the age-related biomechanical properties of tibial physeal separation.

    Purpose of the Study:

    • To experimentally investigate the biomechanical properties of proximal tibial epiphyseal separation under torsional force in adolescent sheep.
    • To correlate the energy required for separation with animal age and skeletal maturity.
    • To characterize the failure patterns of the proximal tibial physis using scanning electron microscopy.

    Main Methods:

    • Utilized 19 adolescent sheep cadaver bone preparations.

    Related Experiment Videos

  • Applied torsional force to induce separation of the proximal tibial epiphysis from the metaphysis.
  • Quantified the energy required for epiphyseal displacement.
  • Examined separated surfaces via scanning electron microscopy (SEM).

    • Main Results:

    • A positive correlation was observed between animal age and the energy required for epiphyseal separation.
    • In younger animals, separation primarily occurred through the hypertrophied chondrocyte zone.
    • In skeletally mature animals, separation followed a more sinuous path, involving the spongious bone.

    Conclusions:

    • Age-related changes significantly influence the biomechanical resistance of the proximal tibial physis to torsional forces.
    • The failure mechanism shifts from a predominantly cartilaginous separation in younger animals to a mixed cartilaginous and bony fracture in older adolescents.
    • These findings provide valuable insights into the biomechanics of physeal injuries and skeletal maturation.