Humeral Tissue Remodeling in Contact with Pyrocarbon Interposition Implant
R. Gauthier , G. Ouenzerfi , I. de Gaudemaris , N. Attik , A. Godenèche , J. Garret , R. Gravier , M. Hassler , A.-M. Trunfio-Sfarghi , P. Boileau
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引用次数: 0
肱骨组织重建与焦碳间置假体接触
热解炭(PyC)间置植入物和人肱骨松质骨之间的相互作用导致了一种新的间置组织的形成,该组织由致密的皮质骨层和软骨样组织组成。从6名因分期手术或与疼痛相关的临床失败而接受植入物移除再手术的患者的肱骨侧采集与PyC间置植入物接触的组织样本。然后对样品进行组织学制备,以评估组织形态和免疫组织学,以评估基质中胶原I和胶原II的存在。在所有病例中,在PyC植入物和肱骨松质骨之间观察到一层致密的皮质骨和一层软组织。不同病例间的夹层软组织性质不同。虽然新组织在PyC-肱骨松质骨界面建模的假设得到了证实,但软组织间质组织的性质根据情况从纤维细胞演变为软骨样组织。在不同病例之间观察到的软组织间质不同的假设是基于肱骨机械生物学重塑。讨论了软组织和骨组织间的附着程度以及PISA几何形状对软组织间性质的影响。应进一步研究肱骨的作用和PISA生物力学,以更好地了解这种组织重塑。
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