A conical-collared intramedullary stem can improve stress transfer and limit micromotion.

@article{Mandell2004ACI,
  title={A conical-collared intramedullary stem can improve stress transfer and limit micromotion.},
  author={Jay A Mandell and Dennis R. Carter and Stuart B Goodman and David J. Schurman and Gary S. Beaupr{\'e}},
  journal={Clinical biomechanics},
  year={2004},
  volume={19 7},
  pages={695-703}
}
OBJECTIVE The objective of this study was to quantify the effect of collar geometry on stress transfer and micromotion in idealized models of a cementless implant having an intramedullary stem. BACKGROUND Intramedullary stems exist on several types of orthopaedic implants, including the femoral component of hip arthroplasties and segmental replacements used in the surgical treatment of a tumor or trauma in the diaphysis of a long bone. METHODS Using three-dimensional finite element analysis… CONTINUE READING

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