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Angular craniometry in craniocervical junction malformation.
Neurosurg Rev. 2013 Oct; 36(4):603-10; discussion 610.NR

Abstract

The craniometric linear dimensions of the posterior fossa have been relatively well studied, but angular craniometry has been poorly studied and may reveal differences in the several types of craniocervical junction malformation. The objectives of this study were to evaluate craniometric angles compared with normal subjects and elucidate the main angular differences among the types of craniocervical junction malformation and the correlation between craniocervical and cervical angles. Angular craniometries were studied using primary cranial angles (basal and Boogard's) and secondary craniocervical angles (clivus canal and cervical spine lordosis). Patients with basilar invagination had significantly wider basal angles, sharper clivus canal angles, larger Boogard's angles, and greater cervical lordosis than the Chiari malformation and control groups. The Chiari malformation group does not show significant differences when compared with normal controls. Platybasia occurred only in basilar invagination and is suggested to be more prevalent in type II than in type I. Platybasic patients have a more acute clivus canal angle and show greater cervical lordosis than non-platybasics. The Chiari group does not show significant differences when compared with the control, but the basilar invagination groups had craniometric variables significantly different from normal controls. Hyperlordosis observed in the basilar inavagination group was associated with craniocervical kyphosis conditioned by acute clivus canal angles.

Authors+Show Affiliations

Post-graduation Program in Health Sciences-IAMSPE-São Paulo, São Paulo, Brazil, bitbot@uol.com.br.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23640096

Citation

Botelho, Ricardo Vieira, and Edson Dener Zandonadi Ferreira. "Angular Craniometry in Craniocervical Junction Malformation." Neurosurgical Review, vol. 36, no. 4, 2013, pp. 603-10; discussion 610.
Botelho RV, Ferreira ED. Angular craniometry in craniocervical junction malformation. Neurosurg Rev. 2013;36(4):603-10; discussion 610.
Botelho, R. V., & Ferreira, E. D. (2013). Angular craniometry in craniocervical junction malformation. Neurosurgical Review, 36(4), 603-10; discussion 610. https://doi.org/10.1007/s10143-013-0471-0
Botelho RV, Ferreira ED. Angular Craniometry in Craniocervical Junction Malformation. Neurosurg Rev. 2013;36(4):603-10; discussion 610. PubMed PMID: 23640096.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Angular craniometry in craniocervical junction malformation. AU - Botelho,Ricardo Vieira, AU - Ferreira,Edson Dener Zandonadi, Y1 - 2013/05/03/ PY - 2012/08/12/received PY - 2013/03/17/accepted PY - 2013/03/14/revised PY - 2013/5/4/entrez PY - 2013/5/4/pubmed PY - 2014/4/12/medline SP - 603-10; discussion 610 JF - Neurosurgical review JO - Neurosurg Rev VL - 36 IS - 4 N2 - The craniometric linear dimensions of the posterior fossa have been relatively well studied, but angular craniometry has been poorly studied and may reveal differences in the several types of craniocervical junction malformation. The objectives of this study were to evaluate craniometric angles compared with normal subjects and elucidate the main angular differences among the types of craniocervical junction malformation and the correlation between craniocervical and cervical angles. Angular craniometries were studied using primary cranial angles (basal and Boogard's) and secondary craniocervical angles (clivus canal and cervical spine lordosis). Patients with basilar invagination had significantly wider basal angles, sharper clivus canal angles, larger Boogard's angles, and greater cervical lordosis than the Chiari malformation and control groups. The Chiari malformation group does not show significant differences when compared with normal controls. Platybasia occurred only in basilar invagination and is suggested to be more prevalent in type II than in type I. Platybasic patients have a more acute clivus canal angle and show greater cervical lordosis than non-platybasics. The Chiari group does not show significant differences when compared with the control, but the basilar invagination groups had craniometric variables significantly different from normal controls. Hyperlordosis observed in the basilar inavagination group was associated with craniocervical kyphosis conditioned by acute clivus canal angles. SN - 1437-2320 UR - https://www.unboundmedicine.com/medline/citation/23640096/Angular_craniometry_in_craniocervical_junction_malformation_ L2 - https://dx.doi.org/10.1007/s10143-013-0471-0 DB - PRIME DP - Unbound Medicine ER -