Mashykhina L. Individual anatomic variability of vertebral artery/atlanto-occipital sinus complex

The investigation object: atlantic part of vertebral artery, atlanto-occipital sinus. The investigation goal: The studying of individual anatomic variability of vertebral artery/atlanto-occipital sinus complex. Methods of research: anatomic (descriptive, comparative, morphometric, preparation of a corpse material), computed tomography, statistical methods. Theoretical and practical value of the obtained results. The anatomical variability and sex peculiarities of atlanto-occipital sinus and its relationships with atlantic part of vertebral artery were revealed. The method of visualization and value of computer tomography parameters of vertebral artery/atlanto-occipital sinus complex was elaborated. Scientific novelty of the obtained results: For the first time the studying of vertebral artery/atlanto-occipital sinus complex was carried out in cadavers and computer tomograms. It was established that the degree of sizes of atlanto-occipital sinus depended on configuration of atlantic part of vertebral artery. Three types of topographic relationships between atlantic part of vertebral artery and atlanto-occipital sinus were divided. Two marginal variants of structure of atlanto-occipital sinus were divided. They were magistral and cavernous variants. On the shape of atlanto-occipital sinus we divide cylindrical, semilunar and irregular forms. The degree of implementation: into studying programs, scientific work, medical practice.