Quantitative detection of cartilage surfaces and ligament geometry of the wrist using an imaging cryomicrotome system
Quantitative detection of cartilage surfaces and ligament geometry of the wrist using an imaging cryomicrotome system
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DOI：
10.1016/j.jbiomech.2009.11.003
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发表时间：
2010-03-22
影响因子：
2.4
通讯作者：
Streekstra, G. J.
中科院分区：
文献类型：
--
作者：
Dvinskikh, N. A.;Blankevoort, L.;Streekstra, G. J.
生物力学模型可能有助于改善腕关节疾病的诊断和治疗。作为输入，几何信息是模型开发所必需的。先前的研究获得了一些平均腕关节几何形状的元素。然而，关节面和韧带几何结构之间存在密切的几何功能匹配。因此，需要为生物力学模型提供单个关节的几何数据。本研究采用冷冻切片成像系统对3具尸体腕关节的30个软骨表面和15个韧带的三维几何结构进行了人工检测和定量重建，并对数据的观察者间和观察者内变异性进行了评价。软骨表面检测的观察者间和观察者内变异性分别为0.14和0.19 mm。对于桡腕背侧韧带（DRC）的桡骨附着位置，观察者内/观察者间的差异分别为0.12和0.65 mm。对于DRC附件上的三角，观察员的变化为0.22和1.19毫米。解剖重建从三维冷冻切片机图像提供了一种方法，以获得独特的几何数据的整个腕关节建模的目的。(C)2009爱思唯尔有限公司保留所有权利。
Biomechanical models may aid in improving diagnosis and treatment of wrist joint disorders. As input, geometrical information is required for model development. Previous studies acquired some elements of the average wrist joint geometry. However, there is a close geometric functional match between articulating surfaces and ligament geometry. Therefore, biomechanical models need to be fed with the geometric data of individual joints. This study is aimed at acquiring geometric data of cartilage surfaces and ligaments from individual wrist joints by using a cryomicrotome imaging system and the evaluation of inter- and intra-observer variability of the data.The 3D geometry of 30 cartilage surfaces and 15 ligaments in three cadaver wrists was manually detected and quantitatively reconstructed. The inter- and intra-observer variability of the cartilage surface detection was 0.14 and 0.19 mm, respectively. For the position of the radius attachment of the dorsal radiocarpal ligament (DRC), the observer variations were 0.12 and 0.65 mm, for intra-/inter-observer, respectively. For the DRC attachment on the triquetrum, the observer variations were 0.22 and 1.19 mm.Anatomic reconstruction from 3D cryomicrotome images offer a method to obtain unique geometry data of the entire wrist joint for modeling purposes. (C) 2009 Elsevier Ltd. All rights reserved.