Mechanisms for pumping fluid through cementless acetabular components with holes.

@article{Walter2005MechanismsFP,
  title={Mechanisms for pumping fluid through cementless acetabular components with holes.},
  author={William Lindsay Walter and Jonathan J Clabeaux and Timothy Max Wright and William Walsh and William K. Walter and Thomas Peter Sculco},
  journal={The Journal of arthroplasty},
  year={2005},
  volume={20 8},
  pages={1042-8}
}
The pumping of fluid and polyethylene wear debris from the joint space to the retroacetabular bone is implicated in the pathogenesis of osteolysis. Three possible mechanisms for this pumping: pressure gradients, diaphragm pumping, and piston pumping were studied in vitro in a laboratory model. The simulated activities of rising from a chair and climbing stairs produced high-pressure gradients and high angles of loading that could pump fluid through the apical hole to the retroacetabular bone. A… CONTINUE READING

From This Paper

Topics from this paper.