The functional flexion-extension axis of the knee corresponds to the surgical epicondylar axis: in vivo analysis using a biplanar image-matching technique.

@article{Asano2005TheFF,
  title={The functional flexion-extension axis of the knee corresponds to the surgical epicondylar axis: in vivo analysis using a biplanar image-matching technique.},
  author={Taiyo Asano and Masao Akagi and Takashi Nakamura},
  journal={The Journal of arthroplasty},
  year={2005},
  volume={20 8},
  pages={1060-7}
}
We investigated the concept that the knee has a fixed flexion-extension axis in the posterior femoral condyles and that this functional axis corresponds to the surgical epicondylar axis in vivo. We used a biplanar image-matching technique to perform the in vivo analysis of 9 normal knees to determine the location of the functional flexion-extension axis of the knee using an optimization technique. The functional flexion-extension axis passed through the sulcus of the medial epicondyle and the… CONTINUE READING
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