Anatomical Knee

This project provides the community with a statistical shape model (SSM) of the knee, code for generating the SSM, and the training data of knee geometries. Currently, the structures that are represented include the femur, tibia, patella, femoral cartilage, tibial cartilages, and patellar cartilage. The bones are represented as point distribution models (PDMs) and the cartilage as scalar fields of the cartilage thickness. This allows for more general use as the point clouds can be easily meshed to obtain the desired mesh topology. The long term goal of this project is to characterise and embed as many of the knee structures as possible to allow for the creation of biomechanics models. <br/><br/>This project includes the following software/data packages: <br/> <ul> <li> <a href="https://simtk.org/frs?group_id=2103#pack_2238">Data used to create SSM </a> : This package contains the processed data used to create the Knee Bone and Cartilage thickness SSM. The data has been prepared according to the paper: Cartilage thickness is coupled to bone shape in healthy knees and varies with sex. Please note that all femurs consist of 50031 points, patella consist of 10049 points, and tibia consist of 49801 points.In order to create the SSM, a final registration/alignment should be applied to the data before applying your unsupervised machine learning method such as principal component analysis (PCA). Please note cartilage thicknesses provided correspond to the thickness at the subchondral nodes provided in the cartilage growing patch files. </li> <li> <a href="https://simtk.org/frs?group_id=2103#pack_2237">Knee Bone and Cartilage SSM </a> : This package visualises the SSM of the knee including bone shape and cartilage thickness distributions. </li> </ul>

本项研究向社区提供了一套关于膝关节的统计学形态模型（SSM）、生成该模型的代码以及膝关节几何形状的训练数据。当前所表示的结构包括股骨、胫骨、髌骨、股骨软骨、胫骨软骨和髌骨软骨。骨骼以点分布模型（PDM）的形式呈现，而软骨则以软骨厚度的标量场表示。这种表示方式使得模型具有更广泛的应用前景，因为点云可以轻松地编织成所需的网格拓扑结构。本项目的长期目标是尽可能详细地描述和嵌入膝关节的各种结构，以促进生物力学模型的构建。本项目包含以下软件/数据包：

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<li><a href="https://simtk.org/frs?group_id=2103#pack_2238">用于创建 SSM 的数据</a>：本数据包包含用于创建膝关节骨骼和软骨厚度 SSM 的处理数据。数据已根据论文《软骨厚度与健康膝关节的骨骼形状相关，并随性别变化》进行准备。请注意，所有股骨由 50031 个点组成，髌骨由 10049 个点组成，胫骨由 49801 个点组成。为了创建 SSM，应在应用无监督机器学习方法（如主成分分析PCA）之前对数据进行最终的配准/对齐。请注意，提供的软骨厚度对应于软骨生长补丁文件中提供的软骨下节点的厚度。</li>
<li><a href="https://simtk.org/frs?group_id=2103#pack_2237">膝关节骨骼和软骨 SSM</a>：本数据包用于可视化膝关节的 SSM，包括骨骼形状和软骨厚度分布。</li>
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