open access

Vol 44, No 6 (2010)
OPIS PRZYPADKU
Submitted: 2009-12-17
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Dynamic CT scan of the craniovertebral junction: a role in the management of os odontoideum

Abad Cherif El Asri, Ali Akhaddar, Miloudi Gazzaz, Naama Okacha, Omar Boulhroud, Hassan Baallal, Hatim Belfquih, Adil Belhachmi, Cherkaoui Mandour, Brahim El Mostarchid, Mohamed Boucetta
DOI: 10.1016/S0028-3843(14)60159-6
·
Neurol Neurochir Pol 2010;44(6):603-608.

open access

Vol 44, No 6 (2010)
OPIS PRZYPADKU
Submitted: 2009-12-17

Abstract

Abstract

Os odontoideum is an uncommon abnormality of the craniovertebral junction (CVJ) that exists as a separate ossicle apart from a hypoplastic dens. Its genesis and natural history have been debated, and its proper treatment remains uncertain. A 48-year-old woman complained of persistent upper neck pain and paraesthesia of her left side. Magnetic resonance imaging of the CVJ demonstrated an os odontoideum. Dynamic computed tomography scan of the CVJ showed a reduction of the space available for the spinal cord to 50% from extended to flexed position. The patient underwent posterior spinal fusion of C1–C2 using a sublaminar titanium hook and rods fixed in moderate extension.

We discuss the usefulness of the dynamic computed tomography (CT) scan in the evaluation of atlantoaxial motion and the management of this pathology.

Abstract

Abstract

Os odontoideum is an uncommon abnormality of the craniovertebral junction (CVJ) that exists as a separate ossicle apart from a hypoplastic dens. Its genesis and natural history have been debated, and its proper treatment remains uncertain. A 48-year-old woman complained of persistent upper neck pain and paraesthesia of her left side. Magnetic resonance imaging of the CVJ demonstrated an os odontoideum. Dynamic computed tomography scan of the CVJ showed a reduction of the space available for the spinal cord to 50% from extended to flexed position. The patient underwent posterior spinal fusion of C1–C2 using a sublaminar titanium hook and rods fixed in moderate extension.

We discuss the usefulness of the dynamic computed tomography (CT) scan in the evaluation of atlantoaxial motion and the management of this pathology.

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Keywords

os odontoideum, dynamic CT scan, craniovertebral junction, posterior approach, space available for the spinal cord

About this article
Title

Dynamic CT scan of the craniovertebral junction: a role in the management of os odontoideum

Journal

Neurologia i Neurochirurgia Polska

Issue

Vol 44, No 6 (2010)

Pages

603-608

DOI

10.1016/S0028-3843(14)60159-6

Bibliographic record

Neurol Neurochir Pol 2010;44(6):603-608.

Keywords

os odontoideum
dynamic CT scan
craniovertebral junction
posterior approach
space available for the spinal cord

Authors

Abad Cherif El Asri
Ali Akhaddar
Miloudi Gazzaz
Naama Okacha
Omar Boulhroud
Hassan Baallal
Hatim Belfquih
Adil Belhachmi
Cherkaoui Mandour
Brahim El Mostarchid
Mohamed Boucetta

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