Crosslink Density Is Reduced and Oxidation Is Increased in Retrieved Highly Crosslinked Polyethylene TKA Tibial Inserts
نویسندگان
چکیده
منابع مشابه
Wear of highly crosslinked polyethylene acetabular components
BACKGROUND AND PURPOSE Wear rates of highly crosslinked polyethylene (XLPE) acetabular components have varied considerably between different published studies. This variation is in part due to the different techniques used to measure wear and to the errors inherent in measuring the relatively low amounts of wear in XLPE bearings. We undertook a scoping review of studies that have examined the i...
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Components from 73 failed knee replacements (TKRs) consisting of rotating-platform, mobile-bearing and fixed-bearing implants were examined to assess the patterns of wear. The patterns were divided into low-grade (burnishing, abrasion and cold flow) and high-grade (scratching, pitting/metal embedding and delamination) to assess the severity of the wear of polyethylene. The rotating-platform gro...
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Introduction: Ultra-high molecular weight polyethylene oxidation remains an important concern in total joint arthroplasty, since it eventually results in a significant drop in mechanical properties that may compromise implant longevity, especially for TKA [1-3]. In vivo oxidation of polyethylene can occur in the presence of unstabilized macroradicals within the polymer and molecular oxygen upta...
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BACKGROUND Polyethylene wear and osteolysis remain a concern with the use of modular, fixed-bearing total knee arthroplasty (TKA). A variety of highly crosslinked polyethylenes (XLPs) have been introduced to address this problem, but there are few data on the results and complications of this polyethylene in posterior-stabilized knee prostheses. QUESTIONS/PURPOSES In a randomized prospective ...
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ژورنال
عنوان ژورنال: Clinical Orthopaedics & Related Research
سال: 2017
ISSN: 0009-921X
DOI: 10.1007/s11999-016-4820-5