QUANTITATION OF ARTICULAR SURFACE-TOPOGRAPHY AND CARTILAGE THICKNESS IN KNEE JOINTS USING STEREOPHOTOGRAMMETRY
QUANTITATION OF ARTICULAR SURFACE-TOPOGRAPHY AND CARTILAGE THICKNESS IN KNEE JOINTS USING STEREOPHOTOGRAMMETRY
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DOI：
10.1016/0021-9290(91)90340-s
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发表时间：
1991-01-01
影响因子：
2.4
通讯作者：
MOW, VC
中科院分区：
文献类型：
--
作者：
ATESHIAN, GA;SOSLOWSKY, LJ;MOW, VC
分析立体摄影测量 (SPG) 技术是根据 Selvik [Ph.D.] 的一些开创性工作而开发的。论文，瑞典隆德大学 (1974)] 和 Huiskes 及其同事 [J. Biomechanics 18, 559-570 (1985)]，代表了构建节关节生物力学模型的基本步骤。利用这项技术，可以获得各种关节软骨表面的精确三维形貌。本文提出的系统使用与 Huiskes 等人相同的校准方法，在最不利的条件下提供 90 μm 的精度和 95% 的覆盖率。 （1985）。此外，还开发了一种使用 SPG 来定量绘制关节整个关节表面软骨厚度的方法，精度为 134 μm（覆盖率 95%）。在本研究中，我们的 SPG 系统已用于量化人体膝盖的髌骨、股骨远端、胫骨平台和半月板的关节面的形貌，包括表面积。此外，还提供了针对膝盖软骨表面的软骨厚度图和相应厚度数据的示例，包括变异系数、最小、最大和平均软骨厚度。这些图说明了关节表面的显着变化，这对于确定关节关节功能期间软骨内的应力和应变很重要。此外，这些软骨表面形貌和厚度数据对于开发解剖学上精确的关节关节有限元模型至关重要。本研究中获得的几何数据也可能对其他生物工程应用有用，例如确定关节接触面积 [Ateshian 等人，ASME Biomech.症状。 98, 105-108 (1989)，Soslowsky 等人，ASME Adv。 Bioengng 15, 129-130 (1989)，Soslowsky 等人，Diarthrodial Joints 生物力学，第 243-268 页。 Springer, NY (1990)] 和解剖学上精确的人工关节的开发。
An analytical stereophotogrammetry (SPG) technique has been developed based upon some of the pioneering work of Selvik [Ph.D. thesis, University of Lund, Sweden (1974)] and Huiskes and coworkers [J. Biomechanics 18, 559-570 (1985)], and represents a fundamental step in the construction of biomechanical models of diarthrodial joints. Using this technique, the precise three-dimensional topography of the cartilage surfaces of various diarthrodial joints has been obtained. The system presented in this paper delivers an accuracy of 90-mu-m in the least favorable conditions with 95% coverage using the same calibration method as Huiskes et al. (1985). In addition, a method has been developed, using SPG, to quantitatively map the cartilage thickness over the entire articular surface of a joint with a precision of 134-mu-m (95% coverage). In the present study, our SPG system has been used to quantify the topography, including surface area, of the articular surfaces of the patella, distal femur, tibial plateau, and menisci of the human knee. Furthermore, examples of cartilage thickness maps and corresponding thickness data including coefficient of variation, minimum, maximum, and mean cartilage thickness are also provided for the cartilage surfaces of the knee. These maps illustrate significant variations over the joint surfaces which are important in the determination of the stresses and strains within the cartilage during diarthrodial joint function. In addition, these cartilage surface topographies and thickness data are essential for the development of anatomically accurate finite element models of diarthrodial joints. The geometric data obtained in this study may also be useful for other bioengineering applications such as the determination of joint contact areas [Ateshian et al, ASME Biomech. Symp. 98, 105-108 (1989), Soslowsky et al., ASME Adv. Bioengng 15, 129-130 (1989), Soslowsky et al., Biomechanics of Diarthrodial Joints, pp. 243-268. Springer, NY (1990)] and the development of anatomically accurate artificial joints.