Ankle morphometry evaluated using a new semi-automated technique based on X-ray pictures
Ankle morphometry evaluated using a new semi-automated technique based on X-ray pictures
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DOI：
10.1016/j.clinbiomech.2004.11.009
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发表时间：
2005-03-01
影响因子：
1.8
通讯作者：
Cappello, A
中科院分区：
文献类型：
--
作者：
Stagni, R;Leardini, A;Cappello, A
背景骨形态测量学的研究在解剖学、生物力学和关节成形术的设计中是重要的，因为假体的设计也取决于关节几何形状的知识，无论是功能的复制还是部件的适当尺寸。人类踝关节骨的相关信息特别缺乏。采用一种新的半自动X线测量方法，对36例正常人的踝关节进行了大量的形态学测量。计算出该关节主要部分的长度、高度和宽度，以及距骨顶和距骨滑车在矢状面上的曲率半径。对这些测量结果进行统计分析。这些测量值的一个大的频谱被发现。显着的相关性被发现之间的一些措施，但没有任何这些和受试者的身高。解释。踝关节处的骨骼具有相似的形状，即三个维度彼此成正比。没有一个内部尺寸与唯一一个可能的外部测量值（即踝宽）相关。目前全踝关节置换设计的尺寸可能与真实的相应关节尺寸有很大差异。(C)2004 Elsevier Ltd.保留所有权利。
Background. The study of bone morphometry is important in anatomy, biomechanics and the design of joint arthroplasty, because the design of prostheses depends also on the knowledge of joint geometry, both for the replication of function and for the proper sizing of the components. Relevant information for the human ankle joint bones is particularly scarce.Methods. A large number of morphological measurements of the ankle joint were collected in 36 normal subjects by means of a new semi-automated radiographic measurement method based on standard frontal and sagittal X-ray projections. Lengths, heights and widths of the main parts of this articulation together with the radii of curvature of the talar dome and of the trochlea tali in the sagittal plane were worked out. Statistical analysis was performed oil these measurements.Findings. A large spectrum for the values of these measures was found. Significant correlation was found among some of the measures, but not between any of these and the subject height.Interpretation. Bones at the ankle joint have similar shapes, i.e. the three dimensions are in direct proportion to each other. No one of the internal dimensions is correlated with the only one possible external measurement, i.e. the nialleolar width. Sizes of the current total ankle replacement designs may differ considerably from real corresponding joint dimensions. (C) 2004 Elsevier Ltd. All rights reserved.