Lubrication regimes in lumbar total disc arthroplasty.

  title={Lubrication regimes in lumbar total disc arthroplasty.},
  author={Aliah F Shaheen and Duncan Shepherd},
  journal={Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine},
  volume={221 6},
A number of total disc arthroplasty devices have been developed. Some concern has been expressed that wear may be a potential failure mode for these devices, as has been seen with hip arthroplasty. The aim of this paper was to investigate the lubrication regimes that occur in lumbar total disc arthroplasty devices. The disc arthroplasty was modelled as a ball-and-socket joint. Elastohydrodynamic lubrication theory was used to calculate the minimum film thickness of the fluid between the bearing… CONTINUE READING