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    Proc Inst Mech Eng H. 2006 Feb;220(2):119-33.

    Metal-on-metal bearings surfaces: materials, manufacture, design, optimization, and alternatives.

    Isaac GH, Thompson J, Williams S, Fisher J.

    Source

    DePuy International Ltd, Leeds, UK. gisaac@dpygb.jnj.com

    Abstract

    When first introduced, total hip replacements offered pain relief and improved mobility in elderly patients. The success of this procedure in terms of long-term durability and restoration of function has led to its use in younger, more active patients. This has resulted in a commensurate increase in patient expectation regarding longevity and the degree to which function and lifestyle is restored. The bearing surface is a key feature of the performance of replacement joints. It is generally accepted that excessive amounts of wear debris preclude their long-term survivorship and hence there is an ongoing requirement for bearing surfaces which minimize debris generation. The purpose of this paper is to review the factors which affect the performance of so-called metal-on-metal bearings, to compare their performance with that of the other commonly used contemporary alternatives, metal and ceramic articulating against highly cross-linked polyethylene, and ceramic-on-ceramic, and finally to consider the potential solutions offered by new developments such as ceramic-on-metal and coatings applied to metal-on-metal bearings.

    PMID:
    16669381
    [PubMed - indexed for MEDLINE]

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