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

Weinrauch, Patrick C., Bell, Cameron G., Wilson, Lance J., Goss, Benjamin G., Lutton, Cameron J., & Crawford, Ross W. (2007) Shear properties of bilaminar polymethylmethacrylate cement mantles in revision hip joint arthroplasty. Journal of Arthroplasty, 22(3), pp. 394-403.

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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 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.

Impact and interest:

14 citations in Scopus
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13 citations in Web of Science®

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70 since deposited on 17 Apr 2007
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ID Code: 6989
Item Type: Journal Article
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author. Author contact details: p.weinrauch@qut.edu.au
Keywords: Hip, Revision, Arthroplasty, Polymethylmethacrylate, Shear, Adhesion
DOI: 10.1016/j.arth.2006.04.010
ISSN: 0883-5403
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > CLINICAL SCIENCES (110300) > Orthopaedics (110314)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2007 Elsevier
Deposited On: 17 Apr 2007
Last Modified: 14 May 2013 16:21

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