Cranio-Vertebral AnomaliesDR. ANKUR NANDAN VARSHNEY IMS, BHU Varanasi. Cranio vertebral anomalies- overview -. 1. DR. SUMIT KAMBLE SENIOR RESIDENT DEPT. OF NEUROLOGY GMC, KOTA; 2. ANATOMY OF. The craniovertebral junction is the most complex of the axial skeleton, residing between the skull and the upper cervical spine. Congenital, developmental, and .
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Treatment of basilar invagination by atlantoaxial joint distraction and direct lateral mass fixation. Mal aligned bony components of the spinal canal compress underlying cord due to dislocation of the joints, the commonest is Atlanto axial dislocation.
Craniovertebral anomalies: Role for craniovertebral realignment Atul Goel Neurol India
J Neurosurg Spine in press. Involvement of one limb or one sided limbs may be misleading. Occipito-atlantal dislocation is rare. Br J Neurosurg ;9: A report of an experience with 24 cases. This term has been used to denote a separate piece of bone present posterior to the anterior arch of atlas.
Goel A, Kulkarni AG. Malformation of axis Irregular atlantoaxial segmentation Dens dysplasias Ossiculum terminale persistence Osodontoideum Segmentation falilure of C Neural dysgenesis.
Von Torklus D, Gehle W. Fatal meningitis, post operative dislocation are possible complications. Mirror movements of the hands are often seen in klippel Feil syndrome due to inadequate decussation of pyramidal tract at crzniovertebral. In addition, the thick ligament and chronic granulation tissue which contribute to compression can be excised.
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Malformations of occipital bone: In early stages of A-A dislocations, most of them are reducible and require only stabilization. Irreducible types require open reduction operative reduction.
Completely reducible abnormalities were identified in cranioveetebral of 20 patients aged years, and partially reducible abnormalities in 4 of 16 patients aged years, 8 of 48 patients aged years and 6 of 16 patients aged years. Dysplasia of the occiptal segments may flatten the clivus – platybasia. It is generally accepted that a stabilization procedure is necessary following ant. Vertebral artery in relationship to C1-C2 vertebrae: MRI has totally changed the prospects of investigation of spinal lesions and more so at CV junction.
Certain terms are conventionally used to express the anomalies, as follows 1. Gupta S, Goel A.
Ventromedial part of the somatomes migrate and cluster around notochord- Sclerotomes. The other is paramedian invagination associated with hypoplasia of the occipital condyles. Reduction of fixed atlantoaxial dislocation: In case of disruption at the interface and if atlanto axial dislocation occurs, the remaining part of the odontoid may compress the cervico meduallary region.
This prospective study analyzes patients with Chiari malformation and primary craniovertebral junction CVJ anomalies years. A bizarre developmental anomaly of the occipital bone and upper anomaliez spine with striking and misleading neurologic manifestations.
If the dislocation is sudden and severe, an acute quadriparesis may occur. Notochord disappears at the vertebral bodies, but persist as disc nucleus pulposus.
Snomalies modification were suggested. When the basiocciput and rim of foramen magnum are underdeveloped, the odontoid and arch of atlas may grow normally to over hang along the sides.
High arched palate, hemiatrophy of tongue, and syndactyly may be associated.