存在膝内翻或膝外翻时腿部骨链中的应力遮挡。
Stress shielding in the bony chain of leg in presence of varus or valgus knee.
作者信息
Filardi Vincenzo
机构信息
Centro Attrazione Risorse Esterne e Creazione d'Impresa, University of Messina, Messina 98100, Italy.
出版信息
J Orthop. 2014 Jul 17;12(2):102-10. doi: 10.1016/j.jor.2014.06.007. eCollection 2015 Jun.
Abstract
AIMS
The aim was to assess how the stress shielding can influence the integrity and resistance of bones in presence of a misalignment.
METHODS
Three finite elements models have been developed: a normal one, and two varus and valgus knee ones.
RESULTS
The obtained results reveal interesting consequences deriving by a wrong disposition of parts which compose the skeletal chain of the leg.
CONCLUSION
The most dangerous conditions occur in the contact interface between pelvis and hip of the femur, for the valgus knee configuration, and for the varus one, at the contact interface around the knee zone.
摘要
目的
本研究旨在评估在存在关节错位的情况下，应力遮挡如何影响骨骼的完整性和抵抗力。
方法
建立了三个有限元模型：一个正常模型，以及两个内翻和外翻膝关节模型。
结果
所得结果揭示了腿部骨骼链组成部分布置错误所产生的有趣后果。
结论
对于外翻膝关节构型，最危险的情况发生在骨盆与股骨髋关节的接触界面；对于内翻膝关节构型，最危险的情况发生在膝关节区域周围的接触界面。
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