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Improvement of Mechanical Strength of Ceramic Head for Hip Prosthesis by Means of Fitting Geometry Modifications: A Finite Element Analysis

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Proceedings of the First International Conference on Interfaces in Medicine and Mechanics

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Abstract

Ceramic (A12O3) balls as femoral prosthetic epiphysis are considered to be ideal for total joint replacement because of their inertness, excellent biocompatibility and optimal wear features. Current designs use a ceramic ball pressed onto a precision tapered metal cone1. Such a conical fitting determines tensile stresses which may cause the fracture of the head2.

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References

  1. E.Y. CHAO, R.A. KASMAN “Conical Press-Fit in Tumor Prosthesis Design” Proc. 29th Annual ORS, Anaheim, California, March 8–10, 1983, p.107.

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  2. I.C. CLARKE, G. SINES, S. KAMPE, H. OONISHI, Y. KITMURA “Mechanical Characterisation of Ceramic Femoral Heads” Proc. 30th Annual ORS, Atlanta, Georgia, Feb. 7–9, 1983, p.295.

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  3. A.O. ANDRISANO, V. CIAVATTI, A. STROZZI “Analisi Sperimentale di Testine in Ceramica per Protesi d’Anca” XV Convegno Nazionale AIAS, Pisa, 15–19 settembre, 1987.

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  4. D.H. SOTELO, F.J. KUMMER, V.H. FRANKEL “A Finite Element Analysis of Ceramic THR Heads” Proc. 30th Annual ORS, Atlanta, Georgia, Feb. 7–9, 1983, p.373.

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  5. K.J. BATHE, A. CHAUDARY “A Solution Method for Planar and Axisymmetric Contact Problems” Int. J. Num. Meth. Engng, Vol. 21, 1985, pp. 65–88. Supported by the Ministero delia Sanità (Progetto Finalizzato “Definizione dei modelli di studio di biocompatibilità e di nuove protesi”) Italy

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Author information

Authors and Affiliations

  1. Istituto Ortopedico Rizzoli, University of Bologna, Italy

    A. Toni, A. Sudanese, T. Greggi & A. Giunti

  2. Engeneering Department, University of Bologna, Italy

    E. Dragoni & A. Andrisano

Authors
  1. A. Toni
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  2. E. Dragoni
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  3. A. Andrisano
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  4. A. Sudanese
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  5. T. Greggi
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  6. A. Giunti
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Editor information

Editors and Affiliations

  1. Department of Basic Dental Science, University of Wales College of Medicine, UK

    K. R. Williams

  2. ENT Department, University Hospital of Wales, UK

    T. H. J. Lesser

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© 1989 Biomaterials Research Group

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Toni, A., Dragoni, E., Andrisano, A., Sudanese, A., Greggi, T., Giunti, A. (1989). Improvement of Mechanical Strength of Ceramic Head for Hip Prosthesis by Means of Fitting Geometry Modifications: A Finite Element Analysis. In: Williams, K.R., Lesser, T.H.J. (eds) Proceedings of the First International Conference on Interfaces in Medicine and Mechanics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-7477-0_32

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  • DOI: https://doi.org/10.1007/978-94-011-7477-0_32

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-011-7479-4

  • Online ISBN: 978-94-011-7477-0

  • eBook Packages: Springer Book Archive

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