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Theoretical Model for Calculating the Rotation in Cementless Acetabular Cup Prosthesis Implanted by Press Fit into a Hip of Canines

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Abstract:

The aseptic loosening of the cementless acetabular cup prosthesis implanted by press fit into a hip is a fault caused by the application of an excessive load, which creates the rotation of the cup on the hip [1]. This rotation of the cup on the hip disables the prosthesis, and a new surgical intervention to place correctly the cup in the hip housing is required. The aseptic loosening of the cementless acetabular cup has been studied during decades mainly through experiments and numerical methods [2,3,4]. This paper shows the development of a theoretical model for calculating the maximum load that the cup of the prosthesis can support as well as the angle and direction of the net load. The model proposed is based on the hertz laws [5], which considers the interface between the cup and hip as two spheres between which there is a coefficient of static friction (μ), and is applied on a acetabular cups [6] implanted in artificial bone [7].

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Info:

Periodical:

Applied Mechanics and Materials (Volume 627)

Pages:

101-104

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.627.101

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Online since:

September 2014

Authors:

Ruben Lostado Lorza*, William T. McCartney, Bryan J. Mac Donald, Roberto Fernandez Martinez

Keywords:

Aseptic Loosening, Cementless Acetabular Cup Hip Prosthesis, Hertz Laws, Theoretical Model

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] M.L. Olmstead, R.B. Hohn, T.M. Turner. A five year study of 221 total hip replacements in the dog. Journal of the American Veterinary Medical Association. 183 (1983)191-194.

Google Scholar

[2] T.G. Guerrero and P.M. Montavon. Zurich cementless total hip replacement: retrospective evaluation of 2nd generation implants in 60 dogs. Vet Surgery. 38 (2009) 70-80.

DOI: 10.1111/j.1532-950x.2008.00466.x

Google Scholar

[3] D.W. Hummel, O.I. Lanz and S.R. Were. Complications of cementless total hip replacement: A retrospective study of 163 cases. Veterinary Comparative Orthopedics and Traumatology. 6 (2010) 424-432.

DOI: 10.3415/vcot-09-07-0071

Google Scholar

[4] L. Vezzoni, V. Montinaro, A. Vezzoni. Use of the revision cup for treatment of Zurich cementless acetabular cup loosening. 26 (2013) 408-415.

DOI: 10.3415/vcot-13-02-0029

Google Scholar

[5] K. L Johnson. Contact mechanics. Cambridge university press. (1987).

Google Scholar

[6] Kyon. Veterinary Surgical products. http: /www. kyon. ch.

Google Scholar

[7] Sawbones. Orthopaedic and Medical Models. http: /www. sawbones. com.

Google Scholar