中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (11): 1758-1763.doi: 10.3969/j.issn.2095-4344.2017.11.021

• 骨与关节图像与影像 bone and joint imaging • 上一篇    下一篇

X射线透视辅助徒手法与CT三维图像导航下颈椎椎弓根置钉准确率的对比

余 伟1,王 蕾2,何思峰1,郭红斌1,刘东升1   

  1. 南阳医学高等专科学校第一附属医院,1放射科,2神经内科,河南省南阳市   473000
  • 出版日期:2017-04-18 发布日期:2017-05-06
  • 作者简介:余伟,男,1978年生,汉族,2008年郑州大学医学院毕业,主治医师,主要从事放射影像学研究。
  • 基金资助:

    河南省卫生科技攻关项目(2014HNA0122)

Accuracy of X-ray fluoroscopy versus CT three-dimensional image navigation in cervical pedicle screw insertion  

Yu Wei1, Wang Lei2, He Si-feng1, Guo Hong-bin1, Liu Dong-sheng1   

  1. 1Department of Radiology, 2Department of Neurology, the First Affiliated Hospital of Nanyang Medical College, Nanyang 473000, Henan Province, China
  • Online:2017-04-18 Published:2017-05-06
  • About author:Yu Wei, Attending physician, Department of Radiology, the First Affiliated Hospital of Nanyang Medical College, Nanyang 473000, Henan Province, China
  • Supported by:

    the Key Technologies Research & Development Program of Henan Province, No. 2014HNA0122

摘要:

文章快速阅读:

 
 
 

 

文题释义:
三维重建:是指对三维物体建立适合计算机表示和处理的数学模型,是在计算机环境下对其进行处理、操作和分析其性质的基础,也是在计算机中建立表达客观世界的虚拟现实的关键技术。
CT平扫:又称普通扫描,是指静脉内不给含碘对比剂的扫描,通常用于初次CT检查者,CT平扫最重要的是掌握各个不同部位或器官以及兴趣区的层厚和层距技术,当层厚等于层距时即为连续扫描,相临层面之间无间隙,当层厚小于层距时,两相临层面之间留有空隙。层厚选择取决于受检部位或器官以及病灶大小而定。
 
摘要
背景:临床上颈椎椎弓根导航方法相对较多,均能提高围术期置钉准确率,但是这些导航系统尚存在许多不完善之处,如图像质量不高、操作复杂繁琐、实时性差或导航存在创伤性等,难以达到预期的置钉效果。
目的:对比X射线透视辅助徒手法与CT三维图像导航下颈椎椎弓根置钉的准确率。
方法:取南阳医学高等专科学校第一附属医院收治的颈椎椎弓根置钉患者90例,随机分为2组(n=45),徒手组在X射线透视辅助下徒手法置入132枚颈椎椎弓根螺钉,三维导航组在CT三维图像导航下置入128枚颈椎椎弓根螺钉,记录2组置钉时间、出血量;2组术后均行CT平扫,完成三维重建,比较2组颈椎椎弓根螺钉置钉准确率。
结果与结论:①三维导航组围术期置钉优良率95.3%显著高于徒手组88.6%(P < 0.05);②三维导航组置钉时间显著长于徒手组(P < 0.05),置钉出血量显著多于徒手组(P < 0.05),导航匹配时间及辐射量小于徒手组(P < 0.05);③2组术前JOA评分比较差异无显著性意义(P > 0.05);三维导航组术后3,6个月JOA评分均显著高于徒手组(P < 0.05);④三维导航组并发症发生率7%低于徒手组16%(P < 0.05);⑤结果提示,与X射线透视辅助徒手法置钉相比,CT三维图像导航能提高颈椎椎弓根置钉准确率,提高手术安全和精确性。但是CT三维图像导航置钉方法操作相对繁琐,耗费时间较长,造成患者术中出血量较大,应根据患者情况选择合适的置钉方法。

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
ORCID: 0000-0002-5928-0137(余伟)

关键词: 骨科植入物, 脊柱植入物, 置钉准确率, X射线透视, 徒手法, CT三维图像, 颈椎椎弓根置钉, 置钉时间, CT平扫, 三维重建, 导航方法

Abstract:

BACKGROUND: Navigation systems all can improve the accuracy rate in cervical pedicle screw insertion, but cannot achieve desired outcomes because of some shortcomings, such as poor imaging quality, complicated operation, poor real-time performance, and invasive navigation.

OBJECTIVE: To study the accuracy of X-ray fluoroscopy and CT three-dimensional image navigation in cervical pedicle screw insertion.
METHODS: Totally 90 patients undergoing cervical pedicle screw insertion from the First Affiliated Hospital of Nanyang Medical College were enrolled, and randomly divided into control and experimental groups (n=45 per group). 132 cervical pedicle screws were inserted into the patients in the control group manually under X-ray fluoroscopy, and 128 ones were inserted into the patients in the experimental group assisted with CT three-dimensional image navigation. The operation time and intraoperative blood loss in the two groups were recorded. Postoperative CT three-dimensional reconstruction was performed to compare the placement accuracy between two groups.
RESULTS AND CONCLUSION: The excellent and good rate of placement in the experimental group (95.3%) was significantly higher than that in the control group (88.6%, P < 0.05). (2) The operation time and intraoperative blood loss in the experimental group were significantly higher than those in the control group, and the navigation matching time and radiant quantity in the experimental group were significantly less than those in the control group (P < 0.05). (3) The Japanese Orthopedic Association scores showed no significant difference between two groups before surgery (P > 0.05), and were significantly improved in the experimental group compared with the control group at 3 and 6 months postoperatively (P < 0.05). The incidence of complications in the experimental group was significantly lower than that in the control group (7% versus 16%, P < 0.05). (5) These results suggest that compared with X-ray fluoroscopy, CT three-dimensional image navigation can improve the accuracy of cervical pedicle screw insertion, showing higher safety and precision. However, it needs complicated operation skills, and long operation time results in massive intraoperative blood loss; thereafter, choosing which placement method depends on the patient condition.
 
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

Key words: Cervical Vertebrae, X-Rays, Imaging, Three-Dimensional, Tissue Engineering

中图分类号: