Tensile properties of the hip joint ligaments are largely variable and age-dependent - An in-vitro analysis in an age range of 14-93 years
Tensile properties of the hip joint ligaments are largely variable and age-dependent - An in-vitro analysis in an age range of 14-93 years
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DOI：
10.1016/j.jbiomech.2016.09.001
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发表时间：
2016-10-03
影响因子：
2.4
通讯作者：
Hammer, Niels
中科院分区：
文献类型：
--
作者：
Schleifenbaum, Stefan;Prietzel, Torsten;Hammer, Niels
介绍：髋关节的稳定性是由周围的韧带，肌肉和通过这些结构施加的大气压力来维持的。目前还不清楚韧带是否能够仅仅由于其拉伸性能而防止脱位，以及它们在多大程度上经历与年龄相关的变化。本研究的目的是获得应力应变数据的髋关节韧带在一个大的年龄范围。方法：应力应变数据的髂股（IL），坐骨股（IS）和耻骨股韧带（PF），从尸体范围在14和93岁之间，使用一个高度标准化的设置。结果：弹性模量分别为24.4（IL）、22.4（IS）和24.9N/mm（2）（PF）。II、IS和PF的最大应变分别为84.5%、86.1%、72.4%，极限应力分别为10.0、7.7和65 N/mm（2）。这些数值在韧带或两侧之间均无显著差异。男性的弹性模量较高，最大应变较低。在>= 55中，PF的弹性模量较低，IS和PF的最大应变较高，
Introduction: Hip joint stability is maintained by the surrounding ligaments, muscles, and the atmospheric pressure exerted via these structures. It is unclear whether the ligaments are capable of preventing dislocation solely due to their tensile properties, and to what extent they undergo age-related changes. This study aimed to obtain stress-strain data of the hip ligaments over a large age range.Methods: Stress-strain data of the iliofemoral (IL), ischiofemoral (IS) and pubofemoral ligament (PF) were obtained from cadavers ranging between 14 and 93 years using a highly standardized setting. Maximum strains were compared to the distances required for dislocation.Results: Elastic modulus was 24.4 (IL), 22.4 (IS) and 24.9 N/mm(2) (PF) respectively. Maximum strain was 84.5%, 86.1%, 72.4% and ultimate stress 10.0, 7.7 and 65 N/mm(2) for the II, IS and PF respectively. None of these values varied significantly between ligaments or sides. The IS' elastic modulus was higher and maximum strain lower in males. Lower elastic moduli of the PF and higher maximum strains for the IS and PF were revealed in the >= 55 compared to the