Your browser doesn't support javascript.
loading
Is There Material Loss at the Conical Junctions of Modular Components for Total Knee Arthroplasty?
Spece, Hannah; Underwood, Richard J; Baykal, Doruk; Eiselstein, Lawrence E; Torelli, Daniel A; Klein, Gregg R; Lee, Gwo-Chin; Kurtz, Steven M.
Afiliação
  • Spece H; Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA.
  • Underwood RJ; Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA; Biomedical Engineering Practice, Exponent Inc, Menlo Park, CA.
  • Baykal D; Biomedical Engineering Practice, Exponent Inc, Menlo Park, CA.
  • Eiselstein LE; Biomedical Engineering Practice, Exponent Inc, Menlo Park, CA.
  • Torelli DA; Biomedical Engineering Practice, Exponent Inc, Menlo Park, CA.
  • Klein GR; Hartzband Center for Hip and Knee Replacement, Paramus, NJ.
  • Lee GC; Department of Orthopaedic Surgery, Penn Presbyterian Medical Center, University of Pennsylvania, Philadelphia, PA.
  • Kurtz SM; Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA; Biomedical Engineering Practice, Exponent Inc, Menlo Park, CA.
J Arthroplasty ; 34(10): 2479-2486, 2019 10.
Article em En | MEDLINE | ID: mdl-31227303
BACKGROUND: Clinical concern exists regarding fretting corrosion and material loss from taper junctions in orthopedic devices, with previous research focusing on the modular components from total hip arthroplasty. Comparatively little has been published regarding the fretting corrosion and material loss in modular knee devices. The purpose of this study is to evaluate fretting corrosion damage and quantify material loss for conical total knee arthroplasty taper interfaces. METHODS: Stem tapers of 166 retrieved modular knee devices were evaluated for fretting corrosion using a semiquantitative scoring method. High precision profilometry was then used to determine volumetric material loss and maximum wear depth for a subset of 37 components (implanted for 0.25-18.76 years). Scanning electron microscopy and energy-dispersive X-ray spectroscopy were used to characterize the observed damage. RESULTS: Mild to severe fretting corrosion was observed on the majority of tapers, with 23% receiving a maximum visually determined damage score of 4. The median rate of volumetric material loss was 0.11 mm3/y (range 0.00-0.76) for femoral components (both cone and bore taper surfaces combined) and 0.01 mm3 (range 0.00-8.10) for tibial components. Greater rates of material loss were associated with mixed metal pairings. There was a strong correlation between visual fretting corrosion score and calculated material loss (ρ = 0.68, P < .001). Scanning electron microscopy revealed varying degrees of scratching, wear, fretting corrosion, and instances of cracking with morphology not consistent with fretting corrosion, wear, or fatigue. CONCLUSION: Although visual evidence of fretting corrosion damage was prevalent and correlated with taper material loss, the measured volumetric material loss was low compared with prior reports from total hip arthroplasty.
Assuntos
Palavras-chave
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Falha de Prótese / Artroplastia do Joelho / Prótese de Quadril Limite: Aged / Female / Humans / Male / Middle aged Idioma: En Revista: J Arthroplasty Assunto da revista: ORTOPEDIA Ano de publicação: 2019 Tipo de documento: Article País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Falha de Prótese / Artroplastia do Joelho / Prótese de Quadril Limite: Aged / Female / Humans / Male / Middle aged Idioma: En Revista: J Arthroplasty Assunto da revista: ORTOPEDIA Ano de publicação: 2019 Tipo de documento: Article País de publicação: Estados Unidos