Abstract
Antlanto-axial dislocation with blocked and ankylosed C2-4 vertebrae causing severe canal stenosis with compression of cervico-medullary junction has been reported. The knowledge of such anomaly may be importance for radiologists, anaesthesiologists, orthopaedicians and neurosurgeons because cranio-cervical junction anomaly may result in sudden unexpected death. It can also result in dysphagia, dysarthria due to compression of cranial nerves and quadriparesis due to compression of spinal cord. We here report a rare case of cranio-vertebral junction anomaly with blocked and ankylosed C2,3,4vertebrae with evidence of atlanto-axial dislocation causing compression of cervico-medullary junction and leading to cervical myelopathy.International Journal of Human and Health Sciences Vol. 03 No. 01 January’19. Page : 40-42
Highlights
Cranio-vertebral junction is a collective term that refers to the occiput, atlas, axis and supporting ligaments
Patients with cranio-vertebral joint anomalies exhibit the first neurological signs and symptoms usually no sooner than second decade.3We here report a rare case of cranio-vertebral junction anomaly with blocked and ankylosed C2,3,4 vertebrae with evidence of atlanto-axial dislocation causing compession of cervico-medullary junction and leading to cervical myelopathy
Symptoms of clinical importance are caused by four principle mechanisms that are mechanical compression of nervous structure, mechanical compression of vascular structures especially of vertebral arteries, marked instability or in contrast elevated rigidity and disturbance of mechanical mobility of skull joints.[6-10]
Summary
Introduction Cranio-vertebral junction is a collective term that refers to the occiput, atlas, axis and supporting ligaments. The occipital bone is composed of basioccipital, exooccipital and supraoccipital portions enclosing the foramen magnum.[1] Several types of developmental deficiencies have been described including total aplasia, keller type aplasia with persistence of posterior tubercle aplasia with unilateral/bilateral remnant, midline rachischisis and hemiaplasia or partial aplasia of the posterior arch.[2] Patients with cranio-vertebral joint anomalies exhibit the first neurological signs and symptoms usually no sooner than second decade.3We here report a rare case of cranio-vertebral junction anomaly with blocked and ankylosed C2,3,4 vertebrae with evidence of atlanto-axial dislocation causing compession of cervico-medullary junction and leading to cervical myelopathy. There was no history of trauma, 1. Of Medicine) M.M.Medical College & Hospital, Kumarhatti,Solan(H.P.) India
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