现代医药卫生Issue(10)：1467-1468,1470,3.DOI:10.3969/j.issn.1009-5519.2014.10.012
寰椎椎弓根螺钉置钉可行性解剖研究
Feasibility study of pedicle screw fixation in the atlas
曹奇 1李严兵1
作者信息
- 1. 南华大学人体解剖学教研室，湖南衡阳421001
- 折叠
摘要
Abstract
Objective To provide accurate anatomic foundation for the insertion of C1 pedicle screw in the operation via anatomic research and measurement on adult′atlas dry specimens. Methods A total of 20 human adult atlas specimens were measured bilaterally to decided the relevant parameters of pedicle screw entry point and the direction of the screw trajectory. Re-sults The width of C1 pedicle was (10.62±0.70)mm. The heights of the posterior arch at the entry point and vertebral artery groove were (4.71±0.36)mm and (4.28±0.55)mm respectively. The longest trajectory distance of the screw path was (26.91±1.68)mm. The leaning angle of trajectory was (3.75±1.42)° and the angle of sagittal view was(3.25±1.74)°. Conclusion The enter point of atlas is the intersection point of sagittal plane ,which is through the midpoint of distance from the junction of C1 posterior arch me-dial and lateral border to lateral mass ,and coronal plane 2 mm superior to the inferior border of posterior arch. When the leaning angle of trajectory is 2°-6° to the coronal plane and 2°-5° cephalad to the transverse plane,it is effective and safe to perform pedicle screw fixation.关键词
寰椎/解剖学/椎弓根螺钉Key words
Atlas/Anatomy/Pedicle screw引用本文复制引用
曹奇,李严兵..寰椎椎弓根螺钉置钉可行性解剖研究[J].现代医药卫生,2014,(10):1467-1468,1470,3.
