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首页> 外文期刊>Journal of shoulder and elbow surgery >Structural and mechanical properties of the glenohumeral joint posterior capsule.
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Structural and mechanical properties of the glenohumeral joint posterior capsule.

机译：盂肱关节后囊的结构和力学性能。

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摘要

The purpose of this study was to quantify regional variations in material properties of the glenohumeral joint posterior capsule and to compare these data with the anterior band of the inferior glenohumeral ligament (AB-IGHL). Mechanical properties were determined for individual bands of the AB-IGHL, superior posterior capsule (SUP-PC), middle posterior capsule (MID-PC), and inferior posterior capsule (INF-PC). Significant differences in tissue thickness were found among the 3 posterior capsular regions and the AB-IGHL. The AB-IGHL was thicker than the MID-PC (P=.03) and INF-PC (P=.01), and the SUP-PC was thicker than the INF-PC (P=.02). Except for significant differences in failure strains, material properties were not significantly different among the 4 tissue regions. There were no significant differences between tissue bands in modulus (P=.2), maximum stress (P=.46), or strain energy density (P=.62). Specimens failed primarily near the glenoid insertion (75%), with 4 specimens failing at the humeral insertion and 2 others failing in the tissue's mid substance.
机译：这项研究的目的是量化盂肱关节后囊的材料特性的区域变化，并将这些数据与下肱肱韧带（AB-IGHL）的前带进行比较。确定了AB-IGHL，上后囊（SUP-PC），中后囊（MID-PC）和下后囊（INF-PC）各个条带的机械性能。在3个后囊区域和AB-IGHL之间发现组织厚度有显着差异。 AB-IGHL比MID-PC（P = .03）和INF-PC（P = .01）厚，而SUP-PC比INF-PC（P = .02）厚。除了失效应变的显着差异外，在4个组织区域之间的材料特性均无显着差异。组织带之间的模量（P = .2），最大应力（P = .46）或应变能密度（P = .62）之间没有显着差异。标本主要在关节盂插入附近失败（75％），其中有4个标本在肱骨插入处失败，另外2个标本在组织中层物质失败。

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