The influence of tibial component intramedullary stems and implant-cortex contact on the strain distribution of the proximal tibia following total knee arthroplasty. An in vitro study.

@article{Bourne1986TheIO,
  title={The influence of tibial component intramedullary stems and implant-cortex contact on the strain distribution of the proximal tibia following total knee arthroplasty. An in vitro study.},
  author={Robert B. Bourne and J. Bryan Finlay},
  journal={Clinical orthopaedics and related research},
  year={1986},
  volume={208},
  pages={95-9}
}
High implant-bone stress levels, particularly on rather weak cancellous bone, have been implicated as the predominant cause of aseptic tibial component loosening, the most frequent cause of total knee arthroplasty (TKA) failure. This strain gauge study on six fresh cadaver specimens has revealed that loss of tibial component-cortex contact resulted in a 33%-60% decrease in principal strain values in the proximal tibia. The implication of this finding is that in the absence of implant-cortex… CONTINUE READING

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