Journal article
Basilar Invagination
Neurosurgery, Vol.66(suppl_3), pp.A39-A47
03/01/2010
DOI: 10.1227/01.NEU.0000365770.10690.6F
PMID: 20173526
Abstract
Abstract BACKGROUND Basilar invagination is a developmental anomaly of the craniovertebral junction in which the odontoid abnormally prolapses into the foramen magnum. It is often associated with other osseous anomalies of the craniovertebral junction, including atlanto-occipital assimilation, incomplete ring of C1, and hypoplasia of the basiocciput, occipital condyles, and atlas. Basilar invagination is also associated with neural axis abnormalities, including Chiari malformation, syringomyelia, syringobulbia, and hydrocephalus. Patients frequently present with neurologic symptoms and deficits and warrant surgical treatment to prevent progression. OBJECTIVE To review the management of basilar invagination. METHODS The literature was reviewed in reference to the evaluation and management of basilar invagination, with particular emphasis on the surgical treatment. RESULTS Reducible basilar invagination may be treated with posterior decompression and stabilization. Ventral decompression may be necessary for basilar invagination with neural compression that is not reducible with axial cervical traction. Posterior cervical stabilization is necessary after ventral decompression. Modern rod and screw systems combined with autogenous bone graft enable correction of deformity, immediate stabilization, and high fusion rates. CONCLUSION Basilar invagination is a developmental anomaly and commonly presents with neurologic findings. Treatment is typically surgical and involves anterior decompression followed by posterior stabilization for irreducible invagination and posterior decompression and stabilization for reducible invagination.
Details
- Title: Subtitle
- Basilar Invagination
- Creators
- Justin S Smith - Departments of Neurosurgery and Orthopaedic Surgery, University of Virginia, Charlottesville, VirginiaChristopher I Shaffrey - Departments of Neurosurgery and Orthopaedic Surgery, University of Virginia, Charlottesville, VirginiaMark F Abel - Departments of Neurosurgery and Orthopaedic Surgery, University of Virginia, Charlottesville, VirginiaArnold H Menezes - Department of Neurosurgery, The University of Iowa College of Medicine, Iowa City, Iowa
- Resource Type
- Journal article
- Publication Details
- Neurosurgery, Vol.66(suppl_3), pp.A39-A47
- DOI
- 10.1227/01.NEU.0000365770.10690.6F
- PMID
- 20173526
- ISSN
- 0148-396X
- eISSN
- 1524-4040
- Language
- English
- Date published
- 03/01/2010
- Academic Unit
- Stead Family Department of Pediatrics; Neurosurgery; Otolaryngology
- Record Identifier
- 9984040387602771
Metrics
27 Record Views