Prediction of Subsidence in Impaction Grafting: A Sensitivity Analysis Using the Taguchi Method

  • M. P. Ayers
  • S. E. Clift
  • S. Gheduzzi
Conference paper

DOI: 10.1007/978-3-642-14515-5_156

Part of the IFMBE Proceedings book series (IFMBE, volume 31)
Cite this paper as:
Ayers M.P., Clift S.E., Gheduzzi S. (2010) Prediction of Subsidence in Impaction Grafting: A Sensitivity Analysis Using the Taguchi Method. In: Lim C.T., Goh J.C.H. (eds) 6th World Congress of Biomechanics (WCB 2010). August 1-6, 2010 Singapore. IFMBE Proceedings, vol 31. Springer, Berlin, Heidelberg

Abstract

Impaction grafting with morsellised cancellous bone is an established technique. Previous studies have developed a finite element model with which to investigate the behavior of morsellised cancellous bone. However, within these studies, there was not a focus on the parameters used to define the behavior of the material. An established finite element model of morsellised cancellous bone was utilized to investigate the significance of various parameters on the uniaxial plastic strain exhibited. The uniaxial plastic strain has been reported to be a cause of implant subsidence. It was found that the initial cap yield surface position was the parameter to which the uniaxial plastic strain was most sensitive, with a percentage contribution to the sum of squares of 98%. All other parameters investigated had relatively little influence. Based upon these findings, future work should focus on establishing an accurate measure of the initial cap yield surface position.

Keywords

Drucker-Prager finite element analysis impaction grafting Taguchi method 

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Copyright information

© International Federation for Medical and Biological Engineering 2010

Authors and Affiliations

  • M. P. Ayers
    • 1
  • S. E. Clift
    • 1
  • S. Gheduzzi
    • 1
  1. 1.Department of Mechanical EngineeringUniversity of BathBathUK

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