Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (13): 2083-2088.doi: 10.3969/j.issn.2095-4344.2014.13.020

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Digital and anatomical study about morphological characteristics of children’s lumbar vertebral canal and pedicle

Wang Xing1, 2, Shi Jun3, Zhang Shao-jie1, 2, Li Zhi-jun1, 2, Zhang Yuan-zhi2, Liu Hong-wei1, Ma Shi-feng1, Zhang Zhi-feng4   

  1. 1Department of Anatomy, Basic Medical College, 2Digital Medical Center, 3Department of Physiology, Basic Medical College, 4Joint Surgical Department, the Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • Received:2014-01-03 Online:2014-03-26 Published:2014-03-26
  • Contact: Li Zhi-jun, Master, Professor, Doctoral supervisor, Department of Anatomy, Basic Medical College, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China; Digital Medical Center, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • About author:Wang Xing, Master, Teaching assistant, Department of Anatomy, Basic Medical College, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China; Digital Medical Center, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China Shi Jun, Master, Lecturer, Department of Physiology, Basic Medical College, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China Wang Xing and Shi Jun contributed equally to this paper.
  • Supported by:

    the National Natural Science Foundation of China, No. 81260269; the Natural Science Foundation of Inner Mongolia Autonomous Region, No. 2012MS1149; the Youth Innovation Foundation of Inner Mongolia Medical University, No. YKD2013QNCX018

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Abstract:

BACKGROUND: Indications and therapeutic method of surgical treatment for Children’s spinal injury are still controversial.
OBJECTIVE: To analyze the morphology, development regularities and age characteristics of lumbar pedicle of children aged 6 to 11 years old by using thin layer CT image data and three dimensional reconstruction.
METHODS: A total of 60 children at the age of 6 to 11 years without spine trauma, deformity and neurological symptoms were selected, and were scanned with multi-row spiral CT (0.625-1.25 mm) from T12 to S1. The original data were imported into three-dimensional reconstruction software by DICOM format, and related index was measured. The data were statistically analyzed according to different segments.
RESULTS AND CONCLUSION: ①With increasing age and vertebral levels, transverse diameter and radius vector of the spinal canal had an increasing trend. ②With the increase of age, the pedicle width and height had an increasing trend. With the increase of vertebral levels, the pedicle width had an increasing trend, but pedicle height had a slowly decreasing trend. The pedicle height was greater than pedicle width. ③With the increase of age, the nail path length had an increasing trend. In the lumbar vertebra, nail path presented “waves” on the  
whole, and there was no significant difference between each vertebra. ④With the increase of vertebral levels, e angle had an increasing trend, but the f angle presented decreasing “wavy” trend. These results indicated that transverse diameter, radius vector, width and height of pedicle, nail path length, e angle and f angle were strongly associated with pedicle screw implantation. In clinical application, we should choose an optimal therapeutic method according to the features of pedicle of children.


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


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Key words: lumbar vertebrae, imaging, three dimensional, spinal canal, dissection

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