کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4063958 | 1604077 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Shear Properties of Bilaminar Polymethylmethacrylate Cement Mantles in Revision Hip Joint Arthroplasty Shear Properties of Bilaminar Polymethylmethacrylate Cement Mantles in Revision Hip Joint Arthroplasty](/preview/png/4063958.png)
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.
Journal: The Journal of Arthroplasty - Volume 22, Issue 3, April 2007, Pages 394–403