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植入物材料的生存率:在体外模拟的炎症和感染环境中

Kai Yuan Cheng¹, Puranjay Gupta¹, Hemalatha Kanniyappan¹

¹Regenerative Medicine and Disability Research Lab, University of Illinois College of Medicine, Rockford, IL, USA.

Annals of biomedical engineering

|August 2, 2023

概括

来自关节置换的金属植入物颗粒和离子可以损害细胞并增加炎症,加速植入物腐蚀. 这会产生一个有害的循环,可能导致植入物失败和修复手术.

科学领域:

生物材料科学生物材料科学
整形外科手术整形外科手术
免疫学免疫学免疫学

背景情况:

基于的植入物对于在患有骨关节炎的患者中恢复肌肉骨功能至关重要.
由于无菌松动和感染导致的植入物失败需要修复手术.

研究的目的:

研究金属降解产品与植入点条件之间的反循环.
了解离子释放如何影响细胞活力和免疫反应,影响腐蚀.

主要方法:

使用细胞活力测试来评估金属颗粒和离子的影响.
采用电化学测试来测量植入物腐蚀率.
研究了植入物环境中的协同效应.

主要成果:

发现金属降解颗粒和离子降低了细胞活力.
观察到因离子释放而加剧的炎症状况.
确定了一个正反循环,在这种循环中,腐蚀增加导致更多的离子释放,反之亦然.

结论:

该研究表明,在一个协同循环中,植入物腐蚀和炎症反应相互增强.
这种循环可以加速植入物退化,增加失效的风险.
了解这种相互作用对于开发更耐用的关节置换植入物至关重要.

关键词:

腐蚀是一种腐蚀.植入物失败的原因是植入物失败.巨细胞是一个巨细胞.的是什么? 的是什么?

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