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spondylolisthesis

[spon-dl-oh-lis-thee-sis] /ˌspɒn dl oʊ lɪsˈθi sɪs/
noun, Pathology
1.
the forward displacement of a vertebra.
Origin
< Neo-Latin (1853) < Greek spóndyl(os) vertebra + olísthēsis dislocation, equivalent to olisthē-, variant stem of olisthánein to slip, sprain (derivative of ólisthos slipperiness) + -sis -sis
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for spondylolisthesis
  • spondylolisthesis occurs when one of the lumbar vertebrae slips over another, or over the sacrum.
spondylolisthesis in Medicine

spondylolisthesis spon·dy·lo·lis·the·sis (spŏn'dl-ō-lĭs-thē'sĭs)
n.
Forward displacement of one of the lower lumbar vertebrae over the vertebra below it or over the sacrum.


spon'dy·lo·lis·thet'ic (-thět'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for spondylolisthesis

forward slipping of one of the vertebrae on the subjacent vertebra or on the sacrum, the triangular bone at the base of the spinal column. The most common vertebrae involved are the lumbar (lower back). The condition is often associated with degenerative joint disease or with abnormalities of the vertebral column, which surrounds the spinal cord. Pressure transmitted to the vertebral column from above encourages slippage. Deformity (lordosis) develops insidiously during childhood and is later followed by mild to severe backache. Rest, back support, and anti-inflammatory medications control the symptoms in most cases, but orthopedic surgery may be necessary, especially if pressure on spinal nerves causes disability.

Learn more about spondylolisthesis with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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