Difference between revisions of "Vertebral column"
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'''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="note"/> | '''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="note"/> | ||
| − | === | + | Anterolisthesis is classified by degree of the slippage, as measured as percentage of the width of the vertebral body:<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 II: 25- 50% | ||
| + | *Grade III: 50-75% | ||
| + | *Grade IV: 75-100% | ||
| + | *Grade V: greater than 100% | ||
==Notes== | ==Notes== | ||
Revision as of 16:59, 24 May 2018
Diseases
Spondylolisthesis
Spondylolisthesis includes anterolisthesis (anterior displacement of a vertebra over the vertebra inferior to it (or the sacrum).) and retrolisthesis (posterior displacement).[note 1]
Anterolisthesis is classified by degree of the slippage, as measured as percentage of the width of the vertebral body:[1]
- Grade I: 0-25%
- Grade II: 25- 50%
- Grade III: 50-75%
- Grade IV: 75-100%
- Grade V: greater than 100%
Notes
- ↑ Spondylolisthesis is sometimes defined as anterior displacement specifically, see for example Spondylolisthesis terminology in Wikipedia for details.
References
- ↑ . Spondylolysis and Spondylolisthesis of the Lumbar Spine. Massachusetts General Hospital. Retrieved on 2016-12-14.
