An experimental-numerical method for comparative analysis of joint prosthesis

Authors

  • R. Claramunt Dpto. de Mecánica Estructural y Construcciones Industriales. E.T.S.I. Industriales. UPM.
  • E. Rincón Dpto. de Tecnología Industrial. Escuela Politécnica Superior. Universidad Alfonso X. Villanueva de la Cañada. Madrid
  • V. Zubizarreta Dpto. de Mecánica Estructural y Construcciones Industriales. E.T.S.I. Industriales. UPM.
  • A. Ros Dpto. de Mecánica Estructural y Construcciones Industriales. E.T.S.I. Industriales. UPM.

DOI:

https://doi.org/10.3989/revmetalm.2001.v37.i2.478

Keywords:

Stresses in bones, Hip prosthesis, Finite Element, Photoelasticity, Electric extensometry.

Abstract


The difficulty that exists in the analysis of mechanical stresses in bones is high due to its complex mechanical and morphological characteristics. This complexity makes generalists modelling and conclusions derived from prototype tests very questionable. In this article, a relatively simple comparative analysis systematic method that allow us to establish some behaviour differences in different kind of prosthesis is presented. The method, applicable in principle to any joint problem, is based on analysing perturbations produced in natural stress states of a bone after insertion of a joint prosthesis and combines numerical analysis using a 3-D finite element model and experimental studies based on photoelastic coating and electric extensometry. The experimental method is applied to compare two total hip prosthesis cement-free femoral stems of different philosophy: One anatomic of new generation, being of oblique setting over cancellous bone and the other madreporique of trochantero-diaphyseal support over cortical bone.

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Published

2001-04-30

How to Cite

Claramunt, R., Rincón, E., Zubizarreta, V., & Ros, A. (2001). An experimental-numerical method for comparative analysis of joint prosthesis. Revista De Metalurgia, 37(2), 269–272. https://doi.org/10.3989/revmetalm.2001.v37.i2.478

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Articles