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.
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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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