Incidência da invaginação basilar com heriação tonsilar – Estudo da craniometria do tipo caso-controle

Translated title of the contribution: Incidence of basilar invagination in patients with tonsillar herniation – A case control craniometrical study

Andrei F. Joaquim*, Yvens Barbosa Fernandes, Roger N. Mathias, Ulysses C. Batista, Enrico Ghizoni, Helder Tedeschi, Alpesh A. Patel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

A retrospective case-control study based on craniometrical evaluation was performed to evaluate the incidence of basilar invagination (BI). Patients with symptomatic tonsillar herniation treated surgically had craniometrical parameters evaluated based on CT scan reconstructions before surgery. BI was diagnosed when the tip of the odontoid trespassed the Chamberlain’s line in three different thresholds found in the literature: 2, 5 or 6.6 mm. In the surgical group (SU), the mean distance of the tip of the odontoid process above the Chamberlain’s line was 12 mm versus 1.2 mm in the control (CO) group (p<0.0001). The number of patients with BI according to the threshold used (2, 5 or 6.6 mm) in the SU group was respectively 19 (95%), 16 (80%) and 15 (75%) and in the CO group it was 15 (37%), 4 (10%) and 2 (5%).

Translated title of the contributionIncidence of basilar invagination in patients with tonsillar herniation – A case control craniometrical study
Original languagePortuguese
Pages (from-to)706-711
Number of pages6
JournalArquivos de Neuro-Psiquiatria
Volume72
Issue number9
DOIs
StatePublished - Sep 1 2014

Keywords

  • Basilar invagination
  • Craniometrical evaluation
  • Tonsillar herniation

ASJC Scopus subject areas

  • Clinical Neurology
  • Biological Psychiatry

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