| Literature DB >> 24996586 |
Christina M Arnholt1, Daniel W MacDonald1, Mariya Tohfafarosh1, Jeremy L Gilbert2, Clare M Rimnac3, Steven M Kurtz4, Gregg Klein5, Michael A Mont6, Javad Parvizi7, Harold E Cates8, Gwo-Chin Lee9, Arthur Malkani10, Mattheuw Kraay11.
Abstract
The purpose of this study was to characterize the prevalence of taper damage in modular TKA components. One hundred ninety-eight modular components were revised after 3.9±4.2 years of implantation. Modular components were evaluated for fretting corrosion using a semi-quantitative 4-point scoring system. Design features and patient information were assessed as predictors of fretting corrosion damage. Mild-to-severe fretting corrosion (score ≥2) was observed in 94/101 tapers on the modular femoral components and 90/97 tapers on the modular tibial components. Mixed alloy pairs (p=0.03), taper design (p<0.001), and component type (p=0.02) were associated with taper corrosion. The results from this study supported the hypothesis that there is taper corrosion in TKA. However the clinical implications remain unclear.Entities:
Keywords: TKA; corrosion; fretting; modularity; retrieval
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Year: 2014 PMID: 24996586 PMCID: PMC4156900 DOI: 10.1016/j.arth.2013.12.034
Source DB: PubMed Journal: J Arthroplasty ISSN: 0883-5403 Impact factor: 4.757