中国临床解剖学杂志 ›› 2011, Vol. 29 ›› Issue (2): 193-196.

• 断层影像解剖 • 上一篇    下一篇

CT三维重建青少年胸椎椎弓根断面测量的解剖学研究

王振锋1, 李志军2, 李筱贺2, 蔡永强2, 李庭斌2, 王 星   

  1. 1.内蒙古医学院第四附属医院影像科,  内蒙古   包头    014032; 2. 内蒙古医学院解剖学教研室,  呼和浩特    010059
  • 收稿日期:2010-08-21 出版日期:2011-03-25 发布日期:2011-03-28
  • 通讯作者: 李志军,教授,Tel:(0471)5880998,E-mail:lizhijunmail @sina.com E-mail:qdx_wbb@163.com
  • 作者简介:王振锋(1977-),男,内蒙古呼和浩特人,主治医师,硕士,主要从事影像诊断及脊柱解剖研究,Tel:15049276810
  • 基金资助:

    国家自然科学基金(30660072);内蒙古医学院重大科研项目(NY2005ZD005)

The anatomical measurement of adolescent thoracic pedicle on CT 3-D reconstruction

WANG Zheng-feng1, LI Zhi-jun2, LI Xiao-he2, CAI Yong-qiang2, LI Ting-bing2, WANG Xing2   

  1. 1.Department of CT Center, Forth Affiliated Hospital of Inner Mongolia Medical College, Baotou 014032, China; 2. Department of Anatomy, Inner Mongolia Medical College, Hohhot 010059, China
  • Received:2010-08-21 Online:2011-03-25 Published:2011-03-28

摘要:

目的 为青少年胸椎椎弓根内固定术提供解剖学数据。 方法 多排螺旋CT对正常青少年(14~17岁)46例自愿者进行胸椎扫描,三维重建后,测量椎弓根高、椎弓根宽、椎弓根骨松质宽及椎弓根骨松质高,观察椎弓根内部骨质分布情况。 结果 椎弓根宽呈两端大、中段小的变化趋势,T4最小(3.85±0.77)mm,T1最大(8.12±1.39)mm;椎弓根高为逐渐增加的波浪形曲线,T3小峰:(10.93±0.88)mm, T12最大:(15.68±1.25)mm;椎弓根骨松质宽为先减小后增大,T11最大(5.24±1.3)mm;椎弓根骨松质高T4最小(5.74±2.4)mm,T11最大(13.18±2.3)mm。 结论 青少年胸椎真正能决定螺钉直径的是骨松质宽,椎弓根螺钉置入时应结合影像学资料,选择合适的螺钉及进钉部位和方向。

关键词: 胸椎椎弓根, 螺旋CT, 三维重建测量, 青少年

Abstract:

Objective To provide the anatomical data for teenagers thoracic pedicle fixation. Methods  Using multidetector-row CT for scanning the thoracic spine of 46 volunteer normal teenagers(14~17-year-old); after the reconstruction, measurement of height and width of pedicle cancellous bone and pedicle cancellous bone was made, observation of bone structure of the pedicle was carried out. Results The width of the pedicle assumed a trend of being large at the sides and small at the middle, T4 minimum (3.85±0.77) mm, T1 maximum ( 8.12±139) mm; the height of the pedicle assumed an gradually increasing wavy curve, T3 (10.93 ±0.88) mm, T12 maximum (15.68±1.25) mm; Pedicle cancellous bone wide first decreases, T11 maximum (5.24±1.3) mm; Pedicle cancellous bone high T4 minimum(5.74±2.4) mm, T11 maximum (13.18±2.3) mm. Conclusion It is the cancellous bone that really decides the diameter of the screw; during the placement of the screw, its direction and site should be guided by the imaging materials.

Key words: Thoracic pedicle, Spiral CT, The reconstruction of three-dimensional measurement, Teenagers

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