The influence of total knee arthroplasty geometry on mid-flexion stability: an experimental and finite element study.

@article{Clary2013TheIO,
  title={The influence of total knee arthroplasty geometry on mid-flexion stability: an experimental and finite element study.},
  author={Chadd W Clary and Clare K. Fitzpatrick and Lorin P Maletsky and Paul J. Rullkoetter},
  journal={Journal of biomechanics},
  year={2013},
  volume={46 7},
  pages={1351-7}
}
Fluoroscopic evaluation of total knee arthroplasty (TKA) has reported sudden anterior translation of the femur relative to the tibia (paradoxical anterior motion) for some cruciate-retaining designs. This motion may be tied to abrupt changes in the femoral sagittal radius of curvature characteristic of traditional TKA designs, as the geometry transitions from a large load-bearing distal radius to a smaller posterior radius which can accommodate femoral rollback. It was hypothesized that a… CONTINUE READING