寰椎的应用解剖学研究

目的：为临床、科研积累寰椎的解剖学资料和临床行椎弓切除减压术提供解剖学依据。方法：对103例寰椎干燥骨进行了解剖学观测。结果：椎动脉沟处形成沟环者占15．04％,椎动脉沟是寰椎的薄弱处;后弓：内侧半距(平均)：左：11．57mm,右:11．42mm,外侧半距(平均)：左：19．60mm,右:19．35mm.结论：(1)前路手术显露前弓范围在2l～28mm内,但不能切除前弓。(2)诊断“沟环症”和后弓切除术暴露范围要适当、慎重。切除后弓范围在10～llmm内,显露后弓范围存15～23mm内．

Applied anatomical study of atlas

Objective:To provide anatomical data of vertebral antery groove for clinical,scientific reseach and to provide anatomical basis for excising vertebral arch to reduce pressure.Methods:103 dry atlas have been studied anatomically.Results:Incidence of posterior,ponticulus of the atlas was 15.04%.The vertebral artery groove was the thinnest in atlas.The left was 11.57mm and the rignt was 11.42mm of the inside semi-dianmeter of posterior arch.The left was 19.60mm and the right was 19.35mm of the outside semi-dianmeter of posterior arch.Conclusion:(1)To expose rang for the anterior arch during 21-28mm;(2)To diagnose "the vertebral artery ring disease" and to expose rang for the half distance of the vertebral arch were fit and careful.To expose it during 15-23mm and to excise it within 10-11mm.