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Acta Neurochirurgica

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01-11-2012 | Clinical Article

Asymmetric laterality of Chiari type I malformation in patients with non-syndromic single-suture craniosynostosis

Authors: A. Karppinen, V. Koljonen, L. Valanne, J. Leikola

Published in: Acta Neurochirurgica | Issue 11/2012

Abstract

Background

Chiari type I malformation is a frequent incidental finding commonly associated with craniosynostosis. However, there seems to be a paucity of literature concerning the asymmetry of tonsillar herniation in patients with non-syndromic single-suture craniosynostosis.

Methods

To study the asymmetry in this cohort, measurements of the right and left tonsils were made from sagittal images from both pre-operative and post-operative images from 11 patients with non-syndromic single-suture craniosynostosis.

Results

Pre-operatively, the mean difference between the caudal descent of all tonsils ranged from 0 to 7 mm, with a mean difference between sides of 2.45 mm. In three cases, cerebellar tonsils were symmetrically herniated. Post-operatively, the mean difference between caudal descent of all tonsils ranged from 0 to 4 mm, with a mean difference between sides of 1.45 mm. Four were symmetrically herniated. In patients with non-syndromic single-suture craniosynostosis, the tonsillar herniation is asymmetric in the majority of cases.

Conclusions

Asymmetry of cerebellar tonsil herniation is a frequent finding in this cohort. The right tonsil is more inferiorly located in majority of cases, with predominance to the synostotic suture side in asymmetric craniosynostosis cases.

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Title: Asymmetric laterality of Chiari type I malformation in patients with non-syndromic single-suture craniosynostosis
Authors: A. Karppinen
V. Koljonen
L. Valanne
J. Leikola
Publication date: 01-11-2012
Publisher: Springer-Verlag
Published in: Acta Neurochirurgica / Issue 11/2012
Print ISSN: 0001-6268
Electronic ISSN: 0942-0940
DOI: https://doi.org/10.1007/s00701-012-1470-6

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Asymmetric laterality of Chiari type I malformation in patients with non-syndromic single-suture craniosynostosis

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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