Craniovertebral junction database analysis: incidence.

We have tried to clarify this confusing area by demonstrating the common relationships of these abnormalities. The development of the craniovertebral junction was present in order to understand the formation of the anomalies discussed. The radiologic lines and measurements that have been described are actually to measure the degree of.

Congenital Vertebral Anomalies Douglas Brockmeyer Congenital vertebral anomalies are relatively common disorders, ranging from simple, asymptomatic “block” vertebrae to complex combinations of anomalies involving multiple vertebral levels. They can occur anywhere from the craniovertebral junction to the coccyx. This chapter covers congential vertebral anomalies from the cervical spine to.

Craniocervical junction abnormalities are congenital or acquired abnormalities of the occipital bone, foramen magnum, or first two cervical vertebrae that decrease the space for the lower brain stem and cervical cord. These abnormalities can result in neck pain; syringomyelia; cerebellar, lower.

The primary form is a congenital skeletal abnormality of the craniocervical junction that is often associated with other vertebral defects such as Klippel-Feil syndrome, Arnold-Chiari malformation, odontoid anomalies and hypoplasia of the atlas. Secondary basilar impression is an acquired deformity of the skull resulting from systemic diseases that.

The craniovertebral junction (CVJ) is a collective term that refers to the occiput (posterior skull base), atlas, axis, and supporting ligaments. It encloses the soft tissue structures of the cervicomedullary junction (medulla, spinal cord, and lower cranial nerves). CONTENTS 1. CVJ anatomic components and limits (with anatomical drawing.

Study Design. Retrospective review. Objective. To evaluate the prevalence of anatomical variations of the vertebral artery at the craniovertebral junction and the posterior arch of the atlas in the US population. Summary of Background Data. Recent studies from Asia have reported a 5% to 10% pre.

This case illustrates a craniocervical junction distraction injury. Craniocervical biomechanical continuity depends on the integrity of the skull base, atlas, and axis and their attaching ligaments. The articulations of the craniocervical junction are defined by the middle atlantoaxial joint, which consists of two synovial compartments that.

The embryology of the bony craniovertebral junction (CVJ) is reviewed with the purpose of explaining the genesis and unusual configurations of the numerous congenital malformations in this region. Functionally, the bony CVJ can be divided into a cent.

Craniovertebral anomalies present an array of complex bony malformations leading to a range of symptoms secondary to neural compression, mal-alignment of bone and subtle or manifest instability. The treatment of these malformations is a challenging problem. Whilst reduction and fixation in the reduced position of mobile and reducible.

The subject of craniovertebral junction anomalies is under discussion and evaluation for over a century. A number of classical reviews have attempted to clarify a variety of complex associated issues. Despite the volumes of publications on the subject, it appears that the last word has not yet been said. Craniovertebral anomalies are more frequently found in the Indian subcontinent than.

Craniocervical junction. This is a complex region where the skull and upper cervical spine connect. The connection between the brain and the spinal cord is at the base of the brainstem in the region of the Craniocervical junction. The base of the skull forms joints with the Atlas (C1, First cervical vertebral body) and the Axis (C2, Second.

Vertebral Artery Anomalies at the Craniovertebral Junction: A Case Report and Review of the Literature Amir M. Abtahi1 Darrel S. Brodke1 Brandon D. Lawrence1 1Department of Orthopaedics, University of Utah, Salt Lake City.