Digital morphological study of thoracic pedicle in children
10.11659/jjssx.10E016047
- VernacularTitle:正常儿童胸椎椎弓根数字化形态学研究
- Author:
Shaojie ZHANG
;
Xing WANG
;
Shifeng MA
;
Yongqiang CAI
;
Hongwei LIU
;
Xiaoyan REN
;
Zhijun LI
- Keywords:
thoracic pedicle;
digitalization;
morphological study;
children;
screw implantation
- From:
Journal of Regional Anatomy and Operative Surgery
2017;26(7):500-504
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the morphological regularity of the thoracic pedicle screw in 4 to 12 years old children by the digital technology,and to provide the theoreticl basis for thoracic pedicle screw fixation in children.Methods A total of 60 healthy children aged from 4 to 12 years old with computed tomography(CT) data of thoracic spine were divided into three groups by age,each group 20 cases.Then they were examined by MIMICS software and the parameters of pedicle width(PW),pedicle height(PH),the length of screw path(SL),e angle and f angle were measured.Results The pedicle width,pedicle height,the SL of the pedicle generally showed a rising trend with advancing age.There were significant differences in the PW,PH and LS between the three group(P<0.05).The PW decreased and then increased.The PH and the LS increased with the vertebral order increased.There was no significant difference in e angle and f angle between the three groups(P>0.05).E angle of the pedicle generally showed a decreasing trend with increasing vertebral order,and e angle of T11 to T12 showed negative angle.The f angle showed a wavy descending trend.Conclusion There was significant difference in correlation parameters of thoracic pedicle with increasing age in healthy children,which indicates that the pedicle screw fixation for the kind of children should be performed based on 'the Principle of individualization' to improve the success rate of surgery.
