Fracture behavior of UHMWPE in non-implanted, shelf-aged knee prostheses after gamma irradiation in air.

@article{Purtolas2001FractureBO,
  title={Fracture behavior of UHMWPE in non-implanted, shelf-aged knee prostheses after gamma irradiation in air.},
  author={Jos{\'e} Antonio Pu{\'e}rtolas and Asun Larrea and Enrique G{\'o}mez-Barrena},
  journal={Biomaterials},
  year={2001},
  volume={22 15},
  pages={2107-14}
}
We studied non-implanted ultra-high molecular weight polyethylene (UHMWPE) knee components, that were gamma-sterilized in air and shelf-aged during 6 and 7 years, to explore fracture mechanisms in the degraded material. Prior to the fractography study, we assessed degradation through FTIR and optical density measurements in microtome sections. Then, we… CONTINUE READING