Corrosion of the Head-Stem Taper Junction—Are We on the Verge of an Epidemic?

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• 作者：Michael Morlock PhD ; Dennis Bünte Dipl.-Ing. ; Julian Gührs MSc…
• 关键词：taper ; corrosion ; fretting ; contamination ; assembly ; loading ; cobalt ; chrom ; ions ; titanium alloy
• 刊名：HSS Journal ®
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：13
• 期：1
• 页码：42-49
• 全文大小：
• 刊物主题：Surgical Orthopedics; Orthopedics; Rheumatology; Sports Medicine; Imaging / Radiology; Anesthesiology;
• 出版者：Springer US
• ISSN：1556-3324
• 卷排序：13

文摘

BackgroundThe modular head taper junction has contributed to the success of total hip arthroplasty (THA) greatly. Taper corrosion and wear problems reported for large and extra-large metal-on-metal bearings as well as for bi-modular THA stems have cast doubt on the benefit of the taper interface. Presently, corrosion problems are being reported for nearly all kinds of artificial hip joints incorporating metal heads, questioning taper connections in general.