Sagittal localization of disc disease (annotated image)

Discussion:

The pedicle and disc are used as reference points to describe disc herniations which may extend to:

  • disc level - confined to between the vertebral endplates
  • suprapedicular - between superior endplate and superior border of pedicle
  • pedicular - at the level of the pedicle
  • infrapedicular - below lower margin of the pedicle to the inferior endplate
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