Journal of the Society of Biomechanisms
Print ISSN : 0285-0885
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Volume 26, Issue 3
Displaying 1-7 of 7 articles from this issue
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  • Estimation of Knee Replacement Kinematics Using Single Plane Projection
    Takafumi KAJIYAMA, Shunji HIROKAWA, Shogo ARIYOSHI
    Article type: Article
    2002 Volume 26 Issue 3 Pages 142-149
    Published: August 01, 2002
    Released on J-STAGE: November 01, 2016
    DOIhttps://doi.org/10.3951/sobim.26.142
    JOURNAL FREE ACCESS
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    The new technique originated by S.Banks was further developed in this study for the measurement of 3D motion from 2D perspective projections of an artificial knee joint's silhouette. The technique uses measured perspective surface geometry to implement a contour matching based position/orientation estimation scheme. Computer model studies and in vitro calibration experiments indicaled that the technique could archive sufficient accuracies for model studies while not for in vitro experiments in some aspects. It is proposed that this technique can provide an unique and valuable new tool for quantifying the performance of existing total knee designs and for developing improved knee replacement devices.
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  • Development of an evaluating system of implant stability for Evidence-based treatment
    Keiji SARATANI, Mitsuhiro TATSUTA, Takayoshi KAWAZOE, Hisao OKA, Sastr ...
    Article type: Article
    2002 Volume 26 Issue 3 Pages 150-158
    Published: August 01, 2002
    Released on J-STAGE: November 01, 2016
    DOIhttps://doi.org/10.3951/sobim.26.150
    JOURNAL FREE ACCESS
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    The aim of this study was to improve our Tooth mobility tester for an evaluation of implant mobility in clinics. We named a new device Implant Movement (IM) checker, and proposed Implant Movement (IM) score. The basic characteristics of the checker and clinical applicability of the measurement probe were confirmed using artificial tooth model and implant model. In a clinical case, diurnal changes after loading were measured by the checker. IM scores decreased rapidly during 20 days in early measurement. It was possible to evaluate implant stability by using the checker.
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