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是什么因素导致了退刀腐蚀?

What Factors Drive Taper Corrosion?

机构信息

Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois.

出版信息

J Arthroplasty. 2018 Sep;33(9):2707-2711. doi: 10.1016/j.arth.2018.03.055. Epub 2018 Mar 30.

Abstract

Adverse local tissue reactions to corrosion products can lead to total hip arthroplasty failure. Although this problem has been well known for more than 25 years, it has seemingly increased in frequency over the recent years. The occurrence of corrosion is multifactorial-depending on implant, patient, and surgeon factors. As of now, there is no "one-size-fits-all" solution to prevent corrosion in total hip arthroplasty devices. Thus, it is imperative to fully understand the exact mechanisms of modular junction corrosion to prevent premature implant failure. This review highlights a few key concepts that need to be explored to minimize the impact of corrosion. The key concepts include (1) the prevention of micromotion, (2) the role of implant alloy metallurgy in the corrosion process, (3) the in vivo generation of a corrosive environment, and (4) potential unanticipated problems.

摘要

腐蚀产物引起的局部组织不良反应可导致全髋关节置换失败。尽管这个问题已经存在 25 年以上,但近年来似乎越来越频繁。腐蚀的发生是多因素的,取决于植入物、患者和外科医生的因素。到目前为止,还没有“一刀切”的方法来防止全髋关节置换器械中的腐蚀。因此,必须充分了解模块连接腐蚀的确切机制,以防止植入物过早失效。本综述强调了一些需要探索的关键概念,以最大程度地减少腐蚀的影响。关键概念包括:(1)防止微动;(2)植入物合金冶金在腐蚀过程中的作用;(3)体内腐蚀性环境的产生;(4)潜在的意外问题。

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