中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (48): 7833-7837.doi: 10.3969/j.issn.2095-4344.2014.48.022

• 数字化骨科 digital orthopedics • 上一篇    下一篇

CT多平面三维重建条件下颈椎椎弓根置钉减少偏差的应用价值

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,内蒙古自治区呼和浩特市  010030
  • 收稿日期:2014-11-18 出版日期:2014-11-26 发布日期:2014-11-26
  • 通讯作者: 张沛,内蒙古医科大学第二附属医院,内蒙古自治区呼和浩特市 010030
  • 作者简介:常志强,男,1981年生,内蒙古自治区人,汉族,博士,主治医师,主要从事颈椎外科方面的研究。

Application value of deviation of screw placement in lower cervical pedicle by CT multiplane and three-dimensional reconstruction

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

  1. Second Affiliated Hospital of Inner Mongolian Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • Received:2014-11-18 Online:2014-11-26 Published:2014-11-26
  • Contact: Zhang Pei, Second Affiliated Hospital of Inner Mongolian Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • About author:Chang Zhi-qiang, M.D., Attending physician, Second Affiliated Hospital of Inner Mongolian Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China

摘要:

背景:颈椎椎弓根解剖结构变异大,周围毗邻重要神经血管,若置钉偏差可能损伤周围的神经血管,因此提高下颈椎椎弓根置钉的准确性是根内固定技术成功的关键所在。
目的:探索CT多平面及三维重建条件下颈椎椎弓根置钉减少偏差的应用价值。
方法:回顾性分析在内蒙古医科大学第二附属医院进行下颈椎椎弓根置钉的颈椎椎弓根疾病(椎弓根正常)患者12例,共置入椎弓根螺钉52枚,分为CT多平面和三维重建下置钉的螺旋CT组,以及X射线透视引导下置钉的X射线透视组,对比分析2种方法置钉的准确性。
结果与结论:螺旋CT组患者置入的28枚椎弓根螺钉中,螺钉位置满意的一类螺钉27枚(96%),二类螺钉1枚;X射线透视组患者置入的24枚螺钉中,一类螺钉21枚(88%),二类共3枚,螺旋CT组置钉准确率明显高于X射线透视引导组(P < 0.05)。提示CT三维重建条件下颈椎椎弓根置钉准确率高、立体感强,有重要的临床应用价值。


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, CT, 三维重建, 下颈椎, 椎弓根, 内固定, 颈椎不稳, 数字化医学

Abstract:

BACKGROUND: Cervical pedicle has large variations anatomical structure, which is adjacent to crucial blood vessels and nerves. Deviation of screw placement may increase the risk of damage in surrounding vessels and nerves. Therefore how to improve the accuracy of placing cervical pedicle screws is the key link of internal fixation.
OBJECTIVE: To investigate clinical application value of deviation of screw placement in lower cervical pedicle by CT multiplane and three-dimensional reconstruction. 
METHODS: Clinical data of 12 patients undergoing lower cervical pedicle screw due to cervical pedicle disease in the Second Affiliated Hospital of Inner Mongolian Medical University were retrospectively analyzed. The number of pedicle screws in all cases was 52. The involved cases were randomly divided into spiral CT group (CT multiplane and three-dimensional reconstruction) and X-ray fluoroscopy group (X-ray fluoroscopy assisted screw placement). The accuracy and deviation of screw placement between two groups were compared.
RESULTS AND CONCLUSION: The number of first-class screws was 27, 96% of the total 28 pedicle screws in spiral CT group, and the number of second-class screws was 1. In the X-ray fluoroscopy group, the number of first-class screws was 21 (88%) and the number of second-class screws was 3. The accuracy of screw placement in spiral CT group was significantly higher than that of X-ray fluoroscopy group (P < 0.05). Screw placement in lower cervical pedicle by CT multiplane and three-dimensional reconstruction has great clinical application value, with high accuracy and strong three-dimensional sense.


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: cervical vertebrae, imaging, three-dimensional, deviation, bone nails

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