The Incidence and Clinical Implications of Congenital Defects of Atlantal Arch
Journal of Korean Neurosurgical Society
; : 522-527, 2009.
Article
em En
| WPRIM
| ID: wpr-78448
Biblioteca responsável:
WPRO
ABSTRACT
OBJECTIVE: Atlantal arch defects are rare. Few cadaveric and imaging studies have been reported on the variations of such anomalies. Our goal in this study was to examine the incidence and review the clinical implications of this anomaly. METHODS: A retrospective review of 1,153 neck or cervical spine computed tomography (CT) scans was performed to identify patients with atlantal arch defects. Neck CT scans were performed in 650 patients and cervical spine CT scans were performed in 503 patients. Posterior arch defects of the atlas were grouped in accordance with the classification of Currarino et al. In patients exhibiting this anomaly, special attention was given to defining associated anomalies and neurological findings. RESULTS: Atlantal arch defects were found in 11 (11/1153, 0.95%) of the 1,153 patients. The type A posterior arch defect was found in nine patients and the type B posterior arch defect was found in two patients. No type C, D, or E defects were observed. One patient with a type A posterior arch defect had an anterior atlantal-arch midline cleft (1/1153, 0.087%). Associated cervical spine anomalies observed included one C6-7 fusion and two atlantal assimilations. None of the reviewed patients had neurological deficits because of atlantal arch anomalies. CONCLUSION: Most congenital anomalies of the atlantal arch are found incidentally during investigation of neck mass, neck pain, radiculopathy, and after trauma.
Palavras-chave
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Radiculopatia
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Coluna Vertebral
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Anormalidades Congênitas
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Cadáver
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Incidência
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Estudos Retrospectivos
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Cervicalgia
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Pescoço
Tipo de estudo:
Incidence_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Journal of Korean Neurosurgical Society
Ano de publicação:
2009
Tipo de documento:
Article