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  • In vitro cyclic testing of the Exeter stem after cement within cement revision.

    Author(s)
    Wilson, Lance Jon
    Bell, Cameron Gordon Roodveldt
    Weinrauch, Patrick
    Crawford, Ross
    Griffith University Author(s)
    Weinrauch, Patrick C.
    Year published
    2009
    Metadata
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    Abstract
    Cement-within-cement (C-C) revision arthroplasty minimizes the complications associated with removal of secure polymethylmethacrylate. Failure at the interfacial region between new and old cement mantles remains a theoretical concern. This article assesses the cyclic fatigue properties of bilaminar cement mantles after C-C revision in vitro with the Exeter stem. Seven Exeter stems were cemented into Sawbone femurs and removed, and new undersized stems were cemented into the preserved mantle. The new constructs were loaded for 1,000,000 cycles at body temperature. Cement mantles were inspected postcycling. In no case was there ...
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    Cement-within-cement (C-C) revision arthroplasty minimizes the complications associated with removal of secure polymethylmethacrylate. Failure at the interfacial region between new and old cement mantles remains a theoretical concern. This article assesses the cyclic fatigue properties of bilaminar cement mantles after C-C revision in vitro with the Exeter stem. Seven Exeter stems were cemented into Sawbone femurs and removed, and new undersized stems were cemented into the preserved mantle. The new constructs were loaded for 1,000,000 cycles at body temperature. Cement mantles were inspected postcycling. In no case was there delamination or failure of the cement mantle. The findings support the hypothesis that use of a thin revision cement mantle in conjunction with a polished double-tapered stem is not detrimental to the overall success of the implant. In the presence of a secure cement-bone interface in suitable patients, we recommend C-C revision techniques using double-tapered polished femoral stems.
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    Journal Title
    Journal of Arthroplasty
    Volume
    24
    Issue
    5
    DOI
    https://doi.org/10.1016/j.arth.2008.02.014
    Subject
    Biomedical engineering
    Clinical sciences
    Publication URI
    http://hdl.handle.net/10072/59924
    Collection
    • Journal articles

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