Difference between revisions of "Spondylolisthesis"
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| − | [[File: | + | [[File:Spondylolisthesis measurement on X-ray.png|thumb|Spondylolisthesis measurement on X-ray]] |
'''Spondylolisthesis''' includes '''anterolisthesis''' (anterior displacement of a vertebra over the vertebra inferior to it (or the [[sacrum]]).) and '''retrolisthesis''' (posterior displacement).<ref name="Terminology" group="notes">Spondylolisthesis is sometimes defined as anterior displacement specifically, see for example [https://en.wikipedia.org/wiki/Spondylolisthesis#Terminology Spondylolisthesis terminology] in Wikipedia for details.</ref> | '''Spondylolisthesis''' includes '''anterolisthesis''' (anterior displacement of a vertebra over the vertebra inferior to it (or the [[sacrum]]).) and '''retrolisthesis''' (posterior displacement).<ref name="Terminology" group="notes">Spondylolisthesis is sometimes defined as anterior displacement specifically, see for example [https://en.wikipedia.org/wiki/Spondylolisthesis#Terminology Spondylolisthesis terminology] in Wikipedia for details.</ref> | ||
| − | Anterolisthesis is classified by degree of the slippage, as measured as percentage of the | + | ==Report== |
| + | Although classification systems exist,<ref group="notes" | ||
| + | Anterolisthesis is classified by degree of the slippage, as measured as percentage of the depth of the vertebral body, mainly as follows:<ref>{{cite web|url=http://www.massgeneral.org/ortho-childrens/conditions-treatments/spondylolysis.aspx|title=Spondylolysis and Spondylolisthesis of the Lumbar Spine|website=Massachusetts General Hospital|accessdate=2016-12-14}}</ref> | ||
*Grade I: 0-25% | *Grade I: 0-25% | ||
*Grade II: 25- 50% | *Grade II: 25- 50% | ||
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*Grade IV: 75-100% | *Grade IV: 75-100% | ||
*Grade V: greater than 100% | *Grade V: greater than 100% | ||
| + | </ref> the most important parameter is the percentage of slippage as compared to the depth of the vertebral body. | ||
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Revision as of 16:13, 22 April 2019
Author:
Mikael Häggström [notes 1]
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,Cite error: Invalid <ref> tag;
invalid names, e.g. too many
- Grade I: 0-25%
- Grade II: 25- 50%
- Grade III: 50-75%
- Grade IV: 75-100%
- Grade V: greater than 100%
</ref> the most important parameter is the percentage of slippage as compared to the depth of the vertebral body.
Notes
- ↑ 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.
- ↑ Spondylolisthesis is sometimes defined as anterior displacement specifically, see for example Spondylolisthesis terminology in Wikipedia for details.
