Document Detail

The lumbosacral angle does not reflect progressive tethered cord syndrome in children with spinal dysraphism.
MedLine Citation:
PMID:  20857121     Owner:  NLM     Status:  MEDLINE    
PURPOSE: Our goal was to validate the hypothesis that the lumbosacral angle (LSA) increases in children with spinal dysraphism who present with progressive symptoms and signs of tethered cord syndrome (TCS), and if so, to determine for which different types and/or levels the LSA would be a valid indicator of progressive TCS. Moreover, we studied the influence of surgical untethering and eventual retethering on the LSA.
METHODS: We retrospectively analyzed the data of 33 children with spinal dysraphism and 33 controls with medulloblastoma. We measured the LSA at different moments during follow-up and correlated this with progression in symptomatology.
RESULTS: LSA measurements had an acceptable intra- and interobserver variability, however, some children with severe deformity of the caudal part of the spinal column, and for obvious reasons those with caudal regression syndrome were excluded. LSA measurements in children with spinal dysraphism were significantly different from the control group (mean LSA change, 21.0° and 3.1° respectively). However, both groups were not age-matched, and when dividing both groups into comparable age categories, we no longer observed a significant difference. Moreover, we did not observe a significant difference between 26 children with progressive TCS as opposed to seven children with stable TCS (mean LSA change, 20.6° and 22.4° respectively).
CONCLUSIONS: We did not observe significant differences in LSA measurements for children with clinically progressive TCS as opposed to clinically stable TCS. Therefore, the LSA does not help the clinician to determine if there is significant spinal cord tethering, nor if surgical untethering is needed.
Erwin M J Cornips; Femke G E M Razenberg; Lodewijk W van Rhijn; Dan L H M Soudant; Elisabeth P M van Raak; Jacobiene W Weber; Simon G Robben; Johanna M Fock; Coriene E Catsman-Berrevoets; Johannes S H Vles
Publication Detail:
Type:  Journal Article     Date:  2010-09-21
Journal Detail:
Title:  Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery     Volume:  26     ISSN:  1433-0350     ISO Abbreviation:  Childs Nerv Syst     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-16     Completed Date:  2011-03-16     Revised Date:  2013-05-27    
Medline Journal Info:
Nlm Unique ID:  8503227     Medline TA:  Childs Nerv Syst     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1757-64     Citation Subset:  IM    
Department of Neurosurgery, Maastricht University Medical Center, 6202 AZ, Maastricht, The Netherlands.
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MeSH Terms
Lumbosacral Region / anatomy & histology*
Neural Tube Defects / pathology*,  surgery
Retrospective Studies
Spinal Dysraphism / pathology*,  surgery
Comment In:
Childs Nerv Syst. 2011 Jan;27(1):9   [PMID:  20878169 ]

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