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首页> 外文会议>3rd frontiers in biomedical devices conference 2008 : Imaging and anatomic interaction ; Simulation and testing ; Device testing ... >ARTICULAR CONTACT ESTIMATION BY SURFACE RECONSTRUCTION BASED ON TRUE GEOMETRY
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ARTICULAR CONTACT ESTIMATION BY SURFACE RECONSTRUCTION BASED ON TRUE GEOMETRY

机译：基于真实几何的曲面重构估计关节接触

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The intra-articular contact characteristics of the diarthrodial joints have been measured by using Fuji pressure sensitive films and a Tekscan sensor system. Direct measurement can only provide resultant contact information. Indirect contact estimation methods, such as mathematical modeling or a stereophotogramametric method can be used to estimate contact kinematics on each articulating surface. However, indirect estimation methods are often based on simplified geometry due to limited accuracy or simplification, resulting in erroneous contact estimation.rnThe objective of this study was to quantify the intra-articular contact area and shape of the glenohumeral joint determined by surface reconstruction. The results showed that the contact estimation method using surface reconstruction was in good agreement with the results of Tekscan measurement (accuracy ≤ 5.3% and repeatability ≤ 11.2%). The contact estimation method may provide a valuable avenue for understanding contact kinematics in human diarthrodial joints.
机译：通过使用富士压敏胶片和Tekscan传感器系统，已经测量了髋关节的关节内接触特性。直接测量只能提供最终的联系信息。间接接触估计方法，例如数学建模或立体摄影测量方法，可用于估计每个关节表面上的接触运动学。然而，由于精度有限或简化，间接估计方法通常基于简化的几何结构，从而导致错误的接触估计。本研究的目的是量化通过表面重建确定的肱骨关节的关节内接触面积和形状。结果表明，采用表面重建的接触估计方法与Tekscan测量的结果非常吻合（精度≤5.3％，重复性≤11.2％）。接触估计方法可以为理解人体双关节的接触运动学提供有价值的途径。

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