中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (26): 4185-4189.doi: 10.3969/j.issn.2095-4344.2014.26.016

• 脊柱植入物 spinal implant • 上一篇    下一篇

寰椎椎弓根螺钉置入的应用解剖及生物力学评价

常志强,张  沛,吴一民,李鹏飞   

  1. 内蒙古医科大学第二附属医院颈椎外科,内蒙古自治区呼和浩特市  010030
  • 出版日期:2014-06-25 发布日期:2014-06-25
  • 作者简介:常志强,1981年生,内蒙古自治区鄂尔多斯市人,2013年重庆医科大学医学博士,主治医师,主要从事颈椎外科方面的研究。

Applied anatomy and biomechanics of atlas pedicle screw implantation

Chang Zhi-qiang, Zhang Pei, Wu Yi-min, Li Peng-fei   

  1. Department of Cervical Surgery, Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • Online:2014-06-25 Published:2014-06-25
  • About author:Chang Zhi-qiang, M.D., Attending physician, Department of Cervical Surgery, Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China

摘要:

背景:当寰椎出现病理变化时如寰椎脱位、寰枕连接处不稳、椎体骨折等一系列病理问题时,应用寰枢椎后路椎弓根置入螺钉及钉棒固定或钉板固定是新近提出的一种修复方式,具有一定的优越性。
目的:比较寰椎椎弓根置入螺钉对不同类型寰椎病变的修复效果。
方法:来源于内蒙古医科大学基础医学院人体解剖教研室的42根椎骨,根据矢状面椎动脉沟底的骨质厚度将椎骨分为3型:Ⅰ型(普通型)、Ⅱ型(变异轻微型)、Ⅲ型(变异重度型),均接受寰椎后路椎弓根螺钉固定。
结果与结论:螺钉在不同骨质密度的椎骨中拔出的力不相同,骨质厚度越大、骨质密度越大的椎骨,其螺钉的拔出力越大(P < 0.05);然而螺钉在不同骨密质的椎骨中所发挥的作用相同,不会压迫血管及影响椎体的活动现象。提示寰椎椎弓根螺钉置入安全性较好,无不良反应,不会影响患者的正常工作及生活。


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


全文链接:

关键词: 植入物, 脊柱植入物, 寰椎椎弓根螺钉, 生物力学, 后路固定, 骨密度

Abstract:

BACKGROUND: A series of pathological changes were found in atlas, including atlas dislocation, atlanto-occipital junction instability and vertebral fractures. Atlantoaxial pedicle screw, nail and rod fixation or nail plate fixation is a novel repair method recently proposed, and has certain advantages.
OBJECTIVE: To compare the repair effects of atlas pedicle screw on different types of atlas lesions.
METHODS: A total of 42 fresh vertebrae were obtained from Department of Human Anatomy, Basic Medical School, Inner Mongolia Medical University. In accordance with bone thickness of sagittal vertebral artery groove bottom, vertebrae were divided into three types: type I (common type), type II (light variation), and type III (severe variation). All samples were subjected to atlas pedicle screw fixation.
RESULTS AND CONCLUSION: The screw pullout force in different bone densities of vertebrae was not the same. Vertebrae with great thickness and great bone density had big screw pullout force (P < 0.05). However, the screw in different cortical bone of vertebrae had the same function. No compression on blood vessels or phenomenon affecting vertebral activity was visible. These results indicated that atlas pedicle screw implantation showed good safety, no side effects, did not affect the normal work and life of patients. 


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


全文链接:

Key words: bone nails, fracture fixation, intramedullary, atlanto-occipital joint, biomechanics

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