Details

Autor(en) / Beteiligte

• Arnholt, Christina M., BS
• MacDonald, Daniel W., MS
• Tohfafarosh, Mariya, BS
• Gilbert, Jeremy L., PhD
• Rimnac, Clare M., PhD
• Kurtz, Steven M., PhD
• Klein, Gregg, MD
• Mont, Michael A., MD
• Parvizi, Javad, MD
• Cates, Harold E., MD
• Lee, Gwo-Chin, MD
• Malkani, Arthur, MD
• Kraay, Mattheuw, MD

Titel

Mechanically Assisted Taper Corrosion in Modular TKA

Ist Teil von

• The Journal of arthroplasty, 2014-09, Vol.29 (9), p.205-208

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• 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.