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

Error analysis of a system for measuring three-dimensional joint motion.

W J Suntay, E S Grood, M S Hefzy

    Journal of Biomechanical Engineering
    |May 1, 1983
    PubMed
    Summary

    Six-degree-of-freedom instrumented spatial linkages offer insights into biological joint motion. Experimental analysis revealed that displacement accuracy is unaffected by significant systematic position errors, contrary to theoretical overestimations.

    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

    Biomechanical comparison between high tibial osteotomy (HTO) and combined HTO and fibular osteotomy.

    Clinical biomechanics (Bristol, Avon)·2013
    Same author

    Estimation of systemic arterial impedance in man from cardiac catheterization data.

    Journal of biomechanical engineering·2013
    Same author

    Tendon tissue engineering: progress, challenges, and translation to the clinic.

    Journal of musculoskeletal & neuronal interactions·2011
    Same author

    Transmission of nosocomial pathogens by white coats: an in-vitro model.

    The Journal of hospital infection·2010
    Same author

    Technique for measurement of the Raman gain coefficient in optical fibers.

    Optics letters·2009
    Same author

    Optical clock recovery from a data stream of an arbitrary bit rate by use of stimulated Brillouin scattering.

    Optics letters·2009

    Area of Science:

    • Biomechanics
    • Medical Instrumentation
    • Orthopedics

    Background:

    • Six-degree-of-freedom instrumented spatial linkages are increasingly used for biological joint motion measurement.
    • Limited data exists on the accuracy of these devices for clinical applications.

    Purpose of the Study:

    • To investigate the accuracy of instrumented spatial linkages for measuring knee joint kinematics.
    • To evaluate errors associated with linkage systems and bi-planar X-ray systems.

    Main Methods:

    • Theoretical error analysis of spatial linkage systems.
    • Experimental determination of errors in linkage and bi-planar X-ray systems.
    • Assessing coordinate transformations between linkage ends and bone-based coordinate systems.

    Related Experiment Videos

    Main Results:

    • Theoretical error analysis overestimated actual measurement errors.
    • Experimental studies showed displacement measurement accuracy is insensitive to large systematic position errors.
    • Bi-planar X-ray system errors were quantified.

    Conclusions:

    • Experimental validation is crucial for accurate error estimation in spatial linkage systems.
    • Instrumented spatial linkages can reliably measure knee joint kinematics despite potential systematic errors.