Abstract
Condition of vertebral arteries in experimental modeling of cervical vertebrae dislocations at C3-C6 level was studied on 20 section-blocks of cervical spine. Vertebral arteries were contrasted and cervical block was fixed using external fixation device. Various types of dislocation and subluxation under X-ray control were produced. Thus, it was possible to observe dynamic picture of vertebral arteries deformation in traumatic cervical vertebrae dislocation. To confirm the results of angiography the cut up of frozen section-blocks in sagittal plane and in vertebral arteries projection as well as visual control (photography of vertebrae dislocation steps) were performed. Results of experimental study allowed to detect peculiarities of vertebral arteries deformations in cervical vertebrae dislocation and to determine the correlation between the degree of vertebrae dislocation and severity of extracranial vertebral artery deformation. It enables to predict the degree of hemodynamic disorders in the system of vertebral arteries, to determine the role of vascular factor in cervical spine injury and to use the differentional approach to the choice of treatment tactics using routine roentgenography.
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