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用于骨科植入物的抗菌表面处理

Antibacterial surface treatment for orthopaedic implants.

作者信息

Gallo Jiri, Holinka Martin, Moucha Calin S

机构信息

Department of Orthopaedics, Faculty of Medicine and Dentistry, Palacky University Olomouc, University Hospital, I. P. Pavlova 6, Olomouc 77520, Czech Republic.

Department of Orthopaedic Surgery, the Mount Sinai Joint Replacement Center, Icahn School of Medicine at Mount Sinai, 5 E. 98th St., New York, NY 10029, USA.

出版信息

Int J Mol Sci. 2014 Aug 11;15(8):13849-80. doi: 10.3390/ijms150813849.

Abstract

It is expected that the projected increased usage of implantable devices in medicine will result in a natural rise in the number of infections related to these cases. Some patients are unable to autonomously prevent formation of biofilm on implant surfaces. Suppression of the local peri-implant immune response is an important contributory factor. Substantial avascular scar tissue encountered during revision joint replacement surgery places these cases at an especially high risk of periprosthetic joint infection. A critical pathogenic event in the process of biofilm formation is bacterial adhesion. Prevention of biomaterial-associated infections should be concurrently focused on at least two targets: inhibition of biofilm formation and minimizing local immune response suppression. Current knowledge of antimicrobial surface treatments suitable for prevention of prosthetic joint infection is reviewed. Several surface treatment modalities have been proposed. Minimizing bacterial adhesion, biofilm formation inhibition, and bactericidal approaches are discussed. The ultimate anti-infective surface should be "smart" and responsive to even the lowest bacterial load. While research in this field is promising, there appears to be a great discrepancy between proposed and clinically implemented strategies, and there is urgent need for translational science focusing on this topic.

摘要

预计医学中可植入设备使用量的增加将自然导致与这些病例相关的感染数量上升。一些患者无法自主防止植入物表面生物膜的形成。局部植入物周围免疫反应的抑制是一个重要的促成因素。翻修关节置换手术中遇到的大量无血管瘢痕组织使这些病例发生假体周围关节感染的风险特别高。生物膜形成过程中的一个关键致病事件是细菌粘附。预防生物材料相关感染应同时至少关注两个目标:抑制生物膜形成和尽量减少局部免疫反应抑制。本文综述了适用于预防假体关节感染的抗菌表面处理的现有知识。已经提出了几种表面处理方式。讨论了减少细菌粘附、抑制生物膜形成和杀菌方法。最终的抗感染表面应该是“智能的”,并且能够对即使是最低的细菌载量做出反应。虽然该领域的研究很有前景,但在提议的策略和临床实施的策略之间似乎存在很大差异,迫切需要专注于该主题的转化科学。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/97a7/4159828/bdf9764b1229/ijms-15-13849-g001.jpg

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