Radlines - Radiology Guidelines

Spondylolisthesis

Author: Mikael Häggström [notes 1]

Spondylolisthesis measurement on X-ray, 25% in this example.

Spondylolisthesis includes anterolisthesis (anterior displacement of a vertebra over the vertebra inferior to it (or the sacrum).) and retrolisthesis (posterior displacement).[notes 2]

Report

Although classification systems exist,[notes 3] the most important parameter is the percentage of slippage as compared to the depth of the vertebral body.

See also: General notes on reporting

Notes

  1. ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Radlines:Authorship for details.
  2. ↑ Spondylolisthesis is sometimes defined as anterior displacement specifically, see for example Spondylolisthesis terminology in Wikipedia for details.
  3. ↑ Anterolisthesis is classified by degree of the slippage, as measured as percentage of the depth of the vertebral body, mainly as follows:
    • Grade I: 0-25%
    • Grade II: 25- 50%
    • Grade III: 50-75%
    • Grade IV: 75-100%
    • Grade V: greater than 100%
    Reference: . Spondylolysis and Spondylolisthesis of the Lumbar Spine. Massachusetts General Hospital. Retrieved on 2016-12-14.

References