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Corrosion Damage and Wear Mechanisms in Long-Term Retrieved CoCr Femoral Components for Total Knee Arthroplasty
Journal article   Open access   Peer reviewed

Corrosion Damage and Wear Mechanisms in Long-Term Retrieved CoCr Femoral Components for Total Knee Arthroplasty

Christina M. Arnholt, Daniel W. MacDonald, Arthur L. Malkani, Gregg R. Klein, Clare M. Rimnac, Steven M. Kurtz, Sevi B. Kocagoz, Jeremy L. Gilbert and Implant Research Center Writing Committee
The Journal of arthroplasty, v 31(12), pp 2900-2906
Dec 2016
DOI: https://doi.org/10.1016/j.arth.2016.05.006
PMID: 27426028
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://europepmc.org/articles/pmc5107165View
Accepted (AM) Open Open Access (License Unspecified)

Abstract

CoCr femoral component TKA fretting corrosion ICIC damage revision TKA third-body wear
Metal debris and ion release has raised concerns in joint arthroplasty. The purpose of this study was to characterize the sources of metallic ions and particulate debris released from long-term (in vivo >15 years) total knee arthroplasty femoral components. A total of 52 CoCr femoral condyles were identified as having been implanted for more than 15 years. The femoral components were examined for incidence of 5 types of damage (metal-on-metal wear due to historical polyethylene insert failure, mechanically assisted crevice corrosion at taper interfaces, cement interface corrosion, third-body abrasive wear, and inflammatory cell–induced corrosion [ICIC]). Third-body abrasive wear was evaluated using the Hood method for polyethylene components and a similar method quantifying surface damage of the femoral condyle was used. The total area damaged by ICIC was quantified using digital photogrammetry. Surface damage associated with corrosion and/or CoCr debris release was identified in 51 (98%) CoCr femoral components. Five types of damage were identified: 98% of femoral components exhibited third-body abrasive wear (mostly observed as scratching, n = 51/52), 29% of femoral components exhibited ICIC damage (n = 15/52), 41% exhibited cement interface damage (n = 11/27), 17% exhibited metal-on-metal wear after wear-through of the polyethylene insert (n = 9/52), and 50% of the modular femoral components exhibited mechanically assisted crevice corrosion taper damage (n = 2/4). The total ICIC-damaged area was an average of 0.11 ± 0.12 mm2 (range: 0.01-0.46 mm2). Although implant damage in total knee arthroplasty is typically reported with regard to the polyethylene insert, the results of this study demonstrate that abrasive and corrosive damage occurs on the CoCr femoral condyle in vivo.

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60 citations in Web of Science
59 citations in Scopus

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#3 Good Health and Well-Being

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Collaboration types
Industry collaboration
Domestic collaboration
Web of Science research areas
Orthopedics
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