کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4078381 1267258 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cement penetration after patella venting
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
Cement penetration after patella venting
چکیده انگلیسی

There is a high rate of patellofemoral complications following total knee arthroplasty. Optimization of the cement–bone interface by venting and suction of the tibial plateau has been shown to improve cement penetration. Our study was designed to investigate if venting the patella prior to cementing improved cement penetration.Ten paired cadaver patellae were allocated prior to resurfacing to be vented or non-vented. Bone mineral density (BMD) was measured by DEXA scanning. In vented specimens, a 1.6 mm Kirschner wire was used to breach the anterior cortex at the center. Specimens were resurfaced with standard Profix instrumentation and Versabond bone cement (Smith and Nephew PLC, UK). Cement penetration was assessed from Faxitron and sectioned images by a digital image software package (ImageJ V1.38, NIH, USA). Wilcoxon rank sum test was used to assess the difference in cement penetration between groups. The relationship between BMD and cement penetration was analyzed by Pearson correlation coefficient.There was a strong negative correlation between peak BMD and cement penetration when analyzed independent of experimental grouping (r2 = − 0.812, p = 0.004). Wilcoxon rank sum testing demonstrated no significant difference (rank sum statistic W = 27, p = 0.579) in cement penetration between vented (10.53% ± 4.66; mean ± std dev) and non-vented patellae (11.51% ± 6.23; mean ± std dev). Venting the patella using a Kirschner wire does not have a significant effect on the amount of cement penetration achieved in vitro using Profix instrumentation and Versabond cement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Knee - Volume 16, Issue 1, January 2009, Pages 50–53
نویسندگان
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