Does surface roughness influence the primary stability of acetabular cups? A numerical and experimental biomechanical evaluation.

@article{Cann2014DoesSR,
  title={Does surface roughness influence the primary stability of acetabular cups? A numerical and experimental biomechanical evaluation.},
  author={Sophie Le Cann and Alexandre Galland and Beno{\^i}t Rosa and Thomas Le Corroller and Martine Pithioux and Jean No{\"e}l Argenson and Patrick Chabrand and S{\'e}bastien Parratte},
  journal={Medical engineering & physics},
  year={2014},
  volume={36 9},
  pages={1185-90}
}
Most acetabular cups implanted today are press-fit impacted cementless. Anchorage begins with the primary stability given by insertion of a slightly oversized cup. This primary stability is key to obtaining bone ingrowth and secondary stability. We tested the hypothesis that primary stability of the cup is related to surface roughness of the implant, using both an experimental and a numerical models to analyze how three levels of surface roughness (micro, macro and combined) affect the primary… CONTINUE READING