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    188宝金博页面版: MECHANICAL CHARACTERIZATION OF CRUCIATE AND COLLATERAL

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    内容提示： MECHANICAL CHARACTERIZATION OF CRUCIATE AND COLLATERAL LIGAMENTS OF HUMAN KNEE Silvia Pianigiani 1 , Stéfan Godet 2 , Lo?c Malet 2 , Ronny De Corte 3 , Luc Labey 3 , Walter Pascale 1 , Bernardo Innocenti 4 1 IRCCS Istituto Ortopedico Galeazzi, Italy; 2 4MAT, Université Libre de Bruxelles, Belgium; 3 European Centre for Knee Research, Smith&Nephew, Belgium; 4 BEAMS, Université Libre de Bruxelles, Belgium Introduction To better understand knee biomechanics and to be able to develop accurate numerical...

    文档格式：PDF | 页数：1 | 浏览次数：273 | 上传日期：2016-05-01 23:03:46 | 文档星级：
    MECHANICAL CHARACTERIZATION OF CRUCIATE AND COLLATERAL LIGAMENTS OF HUMAN KNEE Silvia Pianigiani 1 , Stéfan Godet 2 , Loïc Malet 2 , Ronny De Corte 3 , Luc Labey 3 , Walter Pascale 1 , Bernardo Innocenti 4 1 IRCCS Istituto Ortopedico Galeazzi, Italy; 2 4MAT, Université Libre de Bruxelles, Belgium; 3 European Centre for Knee Research, Smith&Nephew, Belgium; 4 BEAMS, Université Libre de Bruxelles, Belgium Introduction To better understand knee biomechanics and to be able to develop accurate numerical models of the human knee, the knowledge of the mechanical characteristics of cruciate and collateral ligaments is fundamental. However, very few data are currently available in literature and often these analyses are mainly focus on collateral ligaments only at one single deformation speed setting. Therefore, the aim of this study is to provide such information, characterizing the mechanical behaviour of cruciate and collateral ligaments of human knee. Methods Medial and lateral collateral ligament and anterior and posterior cruciate ligaments from fresh frozen cadaver leg were analyzed in this study. Each ligament was accurately dissected from the specimen without removing the femur and the tibial bony attachment. Tensile testing for each ligament was performed on a standard 3-ton tensile testing machine. The bony attachments of each ligament were connected to the machine using flat roughened clamps (Figure 1). Figure 1: Machine setting. Three different crosshead speeds were considered: 0.1m/s, 0.2m/s, 0.4m/s. For each speed, five repetitions for the same ligament were executed. Axial force and deformation were recorded continuously for each test. Results The average Force/Deformation curve and standard deviation for each analysed speed for the posterior cruciate ligament (PCL) is reported in Figure 2. Figure 2: PCL Force/Deformation curves depending on the used crosshead speed. Figure 3 shows the behaviour for the four analysed ligaments for the same used crosshead speed (0.1 m/s). Figure 3: Ligaments Force/Deformation curves depending on the same used crosshead speed. Discussion In this study the mechanical behaviour in terms of Force/Deformation of several ligaments from a native knee was determined from experimental test. Results show that mechanical behaviour is speed dependent and that the four ligament presents different mechanical behaviour.

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