Mechanically Assisted Taper Corrosion in Modular TKA

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

doi:10.1016/j.arth.2013.12.034

Mechanically Assisted Taper Corrosion in Modular TKA

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

Department of Biomedical & Chemical Engineering

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

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.

Original language	English (US)
Journal	Journal of Arthroplasty
DOIs	https://doi.org/10.1016/j.arth.2013.12.034
State	Accepted/In press - 2014

Keywords

corrosion
fretting
modularity
retrieval
TKA

ASJC Scopus subject areas

Orthopedics and Sports Medicine

Access to Document

10.1016/j.arth.2013.12.034

Cite this

@article{e73f24c2d1ed4380aef903a73753e736,

title = "Mechanically Assisted Taper Corrosion in Modular TKA",

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.",

keywords = "corrosion, fretting, modularity, retrieval, TKA",

author = "Arnholt, {Christina M.} and MacDonald, {Daniel W.} and Mariya Tohfafarosh and Gilbert, {Jeremy L.} and Rimnac, {Clare M.} and Kurtz, {Steven M.} and Gregg Klein and Mont, {Michael A.} and Javad Parvizi and Cates, {Harold E.} and Lee, {Gwo Chin} and Arthur Malkani and Mattheuw Kraay",

year = "2014",

doi = "10.1016/j.arth.2013.12.034",

language = "English (US)",

journal = "Journal of Arthroplasty",

issn = "0883-5403",

publisher = "Elsevier",

}

TY - JOUR

T1 - Mechanically Assisted Taper Corrosion in Modular TKA

AU - Arnholt, Christina M.

AU - MacDonald, Daniel W.

AU - Tohfafarosh, Mariya

AU - Gilbert, Jeremy L.

AU - Rimnac, Clare M.

AU - Kurtz, Steven M.

AU - Klein, Gregg

AU - Mont, Michael A.

AU - Parvizi, Javad

AU - Cates, Harold E.

AU - Lee, Gwo Chin

AU - Malkani, Arthur

AU - Kraay, Mattheuw

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - corrosion

KW - fretting

KW - modularity

KW - retrieval

KW - TKA

UR - http://www.scopus.com/inward/record.url?scp=84903401762&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84903401762&partnerID=8YFLogxK

U2 - 10.1016/j.arth.2013.12.034

DO - 10.1016/j.arth.2013.12.034

M3 - Article

SN - 0883-5403

JO - Journal of Arthroplasty

JF - Journal of Arthroplasty

ER -

Mechanically Assisted Taper Corrosion in Modular TKA

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this