Cervical vertebral fusion
An anatomical consideration
Keywords:
cervical vertebrae, zygapophyseal joint, congenital anomaliesAbstract
Developmental anomalies of vertebral column are common especially in the cervical region and thus become the point of keen interest from long time to the anatomists and related health professionals. Normal typical cervical vertebrae i.e. 3rd to 6th are characterized by the presence of small body, triangular spinal canal, foramina transversarium, superior articular facet directed backwards & upward, inferior articular facet directed forward & downwards and a short bifid spine. Abnormalities in any of the features may be associated with neurological signs and symptoms. During the routine osteology classes we found two abnormally fused typical cervical vertebrae specimens in the Dept. of Anatomy, Desh Bhagat Dental College & Hospital, Mandi Gobindgarh. Both the pairs of cervical vertebrae were unilaterally fused at the zygapophyseal joints on the right sides and in one of the case the laminas were also fused partially on the right side. Congenitally fused vertebrae results in biochemical stress in the adjoining segments of the vertebral column leading to premature degenerative change and this can lead to consequences like distal tear, spondylosis, etc.
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