Basilar invagination associated with chiari malformation type I: A literature review
Clinics
;
74: e653, 2019. graf
Article
in English
| LILACS
| ID: biblio-1001818
ABSTRACT
Basilar invagination (BI) and Chiari malformation type I (CM-I) are very important anomalies that introduce instability and compression in the occipitocervical transition region and have complex clinical characteristics. These anomalies vary according to the affected structures. The present study revises current knowledge regarding the anatomy, anatomo-physiology, clinical manifestations, and radiological findings of these entities and the associated surgical treatment approaches. A bibliographic survey was performed through a search in the Medline, PubMed, SciELO, Science and LILACS databases. When associated, these craniovertebral malformations result in neurological deficits due to neural parenchyma compression; however, the presence of microtraumas due to repetitive lesions caused by the bulb and cervical marrow instability has been highlighted as a determinant dysfunction. Surgical treatment is controversial and has many technical variations. Surgery is also challenging due to the complex anatomical characteristics and biomechanics of this region. Nevertheless, advances have been achieved in our understanding of related mechanisms, and compression and atlantoaxial instability are considered key elements when selecting the surgical approach.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Arnold-Chiari Malformation
Type of study:
Risk factors
Limits:
Humans
Language:
English
Journal:
Clinics
Journal subject:
Medicine
Year:
2019
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Centro Universitário UNINOVAFAPI/BR
/
Hospital Sao Marcos/BR
/
Universidade Estadual do Piaui/BR
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