The influence of friction and interference on the seating of a hemispherical press-fit cup: a finite element investigation.

@article{Spears1999TheIO,
  title={The influence of friction and interference on the seating of a hemispherical press-fit cup: a finite element investigation.},
  author={Iain R. Spears and Michael M. Morlock and Michael Pfleiderer and Erich Schneider and Einar Hille},
  journal={Journal of biomechanics},
  year={1999},
  volume={32 11},
  pages={1183-9}
}
The formation of gaps in the polar region of acetabular cups is seen as a drawback of press-fit fixation of non-cemented acetabular cups. Recent findings indicate a link between long-term polar gaps and the gaps present directly after implantation. In this study the process of press-fitting is simulated with a linear-elastic two-dimensional axisymmetric finite-element model. The aim of this paper is to investigate the possible importance of friction and interference on the formation of these… CONTINUE READING