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  • Shear properties of bilaminar polymethylmethacrylate cement mantles in revision hip joint arthroplasty.

    Author(s)
    Weinrauch, Patrick C
    Bell, Cameron
    Wilson, Lance
    Goss, Ben
    Lutton, Cameron
    Crawford, Ross W
    Griffith University Author(s)
    Weinrauch, Patrick C.
    Year published
    2007
    Metadata
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    Abstract
    Although cement-within-cement revision arthroplasty minimizes the complications associated with removal of secure PMMA, failure at the interfacial region between new and old cement mantles remains a theoretical concern. This article assesses the variability in shear properties of bilaminar cement mantles related to duration of postcure and the use of antibiotic cements. Bilaminar cement mantles were 15% to 20% weaker than uniform mantles (P < .001) and demonstrated variability in shear strength related to duration of postcure of the freshly applied cement (P < .001). The use of Antibiotic Simplex did not significantly ...
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    Although cement-within-cement revision arthroplasty minimizes the complications associated with removal of secure PMMA, failure at the interfacial region between new and old cement mantles remains a theoretical concern. This article assesses the variability in shear properties of bilaminar cement mantles related to duration of postcure and the use of antibiotic cements. Bilaminar cement mantles were 15% to 20% weaker than uniform mantles (P < .001) and demonstrated variability in shear strength related to duration of postcure of the freshly applied cement (P < .001). The use of Antibiotic Simplex did not significantly influence interfacial cement adhesion (P = .52). Interfacial adhesion by mechanisms other than mechanical interlock plays a significant role in the bond formed between new and old PMMA cements, with an important contribution by diffusion-based molecular interdigitation. In the presence of a secure cement-bone interface, we recommend cement-within-cement revision techniques in suitable patients.
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    Journal Title
    Journal of Arthroplasty
    Volume
    22
    Issue
    3
    DOI
    https://doi.org/10.1016/j.arth.2006.04.010
    Subject
    Medical and Health Sciences not elsewhere classified
    Biomedical Engineering
    Clinical Sciences
    Publication URI
    http://hdl.handle.net/10072/60502
    Collection
    • Journal articles

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