کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4063414 1604058 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of Retrieved Ultra–High-Molecular-Weight Polyethylene Tibial Components From Rotating-Platform Total Knee Arthroplasty
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
Analysis of Retrieved Ultra–High-Molecular-Weight Polyethylene Tibial Components From Rotating-Platform Total Knee Arthroplasty
چکیده انگلیسی

Mobile-bearing total knee Arthroplasties (TKAs) were designed to increase conformity, decrease contact stresses, and decrease polyethylene damage. Our objective was to evaluate the performance of retrieved mobile-bearing TKAs with respect to wear damage of the polyethylene in a series of components obtained at revision surgery. Tibial component polyethylene superior and inferior surface damage and radiographic radiolucency analysis was conducted on 40 retrieved mobile-bearing TKAs. Higher levels of superior articulating surface damage were found to be associated with higher levels of inferior surface damage in this retrieval study. Greater levels of damage were present on both surfaces in components with greater radiographic radiolucency scores and mechanically loose components. The mobile-bearing TKA remains vulnerable to polyethylene wear damage at the superior surface and introduces an independent inferior surface also vulnerable to wear damage.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Arthroplasty - Volume 24, Issue 1, January 2009, Pages 131–138
نویسندگان
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