ArticleSurgical and radiologic anatomy : SRA2023
The morphological classification and clinical significance of atlas vertebral artery sulcus based on computed tomography three-dimensional reconstruction.
Article in Surgical and radiologic anatomy : SRA, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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6 authors at 1 institution in 1 country.
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Abstract
objectiveThe purpose of this study was to research the morphological classification and clinical significance of vertebral artery sulcus on atlas based on CT three-dimensional reconstruction.
methodsThree-dimensional reconstruction images of 300 adult atlases were collected. A total of 600 atlas vertebral artery sulci were selected in this study. The parameters required for placement of C1 pedicle screw, including depth of grinding drilling (ao), width (cd), length ab), height (H), lateral wall thickness (L1), inner wall thickness (L2), medial angle (∠α), and the cephalad angle to the transverse plane of atlas pedicle (∠β), were measured.
resultsCT three-dimensional reconstruction images showed that there were five types of atlas vertebral artery sulci: no process type (n = 494 cases, 82.33%), upper process type (n = 29, 4.83%), lower process type (n = 25, 4.17%), double process type (n = 19, 3.17%), and posterior ring type (33, 5.50%). One-way ANOVA tests showed that the five groups differed significantly in the parameter of ao, L2, H, ∠α and ∠β. One-way ANOVA with the LSD post hoc tests showed that the parameter ao of the group of no process type was less than that of the group of upper or lower process type (P < 0.05), and ao of the group of lower process or posterior ring type was less than that of the group of the upper type (P < 0.05). The parameter of ao of the male group was larger than that of the female group.
conclusionNo process type of the atlas vertebral artery sulcus was the most common, and the medial angle and cephalad angle of the atlas pedicle in this type were the smallest. When pedicle screws are inserted, the above two angles should not be too large. Male's ao was larger than that of female's. All these findings should be considered to avoid the deviation of the nail track.
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