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.
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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|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: firstname.lastname@example.org|
|Keywords:||Hip, Revision, Arthroplasty, Polymethylmethacrylate, Shear, Adhesion|
|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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