Document Detail

Spondylolysis and isthmic spondylolisthesis: impact of vertebral hypoplasia on the use of the Meyerding classification.
MedLine Citation:
PMID:  21750127     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Spondylolysis and isthmic spondylolisthesis are common multifactorial disorders. The extent of slipping of the spondylolytic vertebra is considered a major predicator for prognosis and further follow-up. Vertebral hypoplasia is a common finding associated with spondylolysis. The purpose of this study is to evaluate the incidence of hypoplastic vertebral bodies in patients with spondylolysis and in the general population and to analyse the impact of the findings on the measurement and grading of spondylolisthesis.
METHODS: 140 patients with 141 levels of spondylolysis identified by MRI were included in this study. The slippage of the spondylolytic vertebral body and the size in the midline sagittal image were measured and correlated. In addition, a randomised control group was evaluated to test the hypothesis that shortened, hypoplastic vertebral bodies can also be found in the general population.
RESULTS: Shortened, hypoplastic vertebrae were found in 50 patients with spondylolysis and none was found in the control group. These shortened vertebrae mimicked spondylolisthesis and in 19 patients the slippage equalled the shortening, thus mimicking spondylolisthesis, although only spondylolysis was present.
CONCLUSION: Sagittal shortening of the spondylolytic vertebra is common and may mimic spondylolisthesis. In order to define and measure spondylolisthesis the shortening of the spondylolytic vertebra has to be taken into account.
P Niggemann; J Kuchta; D Grosskurth; H K Beyer; J Hoeffer; K S Delank
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Publication Detail:
Type:  Journal Article     Date:  2011-07-12
Journal Detail:
Title:  The British journal of radiology     Volume:  85     ISSN:  1748-880X     ISO Abbreviation:  Br J Radiol     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-03-29     Completed Date:  2012-05-24     Revised Date:  2013-06-28    
Medline Journal Info:
Nlm Unique ID:  0373125     Medline TA:  Br J Radiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  358-62     Citation Subset:  AIM; IM    
Privatpraxis für Upright MRT, Cologne, Germany.
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MeSH Terms
Aged, 80 and over
Magnetic Resonance Imaging
Middle Aged
Random Allocation
Spine / pathology*
Spondylolisthesis / classification*
Spondylolysis / pathology*

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