Lumbar intervertebral disc and ligament deformations measured in vivo.

@article{Pearcy1984LumbarID,
  title={Lumbar intervertebral disc and ligament deformations measured in vivo.},
  author={M. J. Pearcy and Sheo B Tibrewal},
  journal={Clinical orthopaedics and related research},
  year={1984},
  volume={191},
  pages={281-6}
}
The physiologic deformations of the anterior and posterior margins of the annulus fibrosus and the interspinous ligaments were defined in flexion and extension by accurate measurements taken from lateral roentgenograms of the lumbar spines of 11 normal males. The anterior and posterior disc heights were shown to compress and extend up to 35% and 60%, respectively, while the interspinous distance extended up to 369%. In relation to the known mechanical characteristics in vitro, these… CONTINUE READING
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