首页|期刊导航|中华医学杂志（英文版）|Positioning study of cervical vertebra pedicle axial line projective point by computed tomography image reconstruction
中华医学杂志（英文版）2012，Vol.125Issue(14)：2521-2524,4.DOI:10.3760/cma.j.issn.0366-6999.2012.14.023
Positioning study of cervical vertebra pedicle axial line projective point by computed tomography image reconstruction
Positioning study of cervical vertebra pedicle axial line projective point by computed tomography image reconstruction
摘要
Abstract
Background Safe placement of the screws is a critical aspect of trans-pedicle internal fixation,and little information on in vivo morphology of the cervical vertebrae pedicle measured with imaging methods is available.The aim of this study was to measure the dimensions of cervical vertebrae C3 to C7 and provide screw length,screw diameter and tilt angle for clinical cervical vertebra trans-pedicle internal fixation.Methods Thirty Chinese men and women underwent high-speed spiral computed tomography measurements to obtain data for C3 to C7,and the morphology of the cervical vertebra pedicles was reconstructed.Results Reconstructed computer tomography image data revealed that:(1) pedicle sponge width increased incrementally from C3 to C7,(2) pedicle depth was similar for C3 to C7,(3) pedicle angle decreased incrementally from 47.20° to 33.76° for C3 to C7,and (4) pedicle point to midline distance was similar for C3 to C7.There were no statistical differences in morphological data between the right and the left side.Men had statistically larger values than women for all morphological parameters.Conclusions Reconstructed computed tomography images can provide useful data for clinical cervical vertebra trans-pedicle internal fixation.The individual measurement of cervical vertebra pedicles is recommended for safe placement of trans-vertebra pedicle screws.关键词
pedicle of vertebral arch/internal fixation/computer tomography reconstruction/imagingKey words
pedicle of vertebral arch/internal fixation/computer tomography reconstruction/imaging引用本文复制引用
ZHANG Pei-xun,XUE Feng,ZHANG Dian-ying,FU Zhong-guo,HAN Na,KOU Yu-hui,JIANG Bao-guo..Positioning study of cervical vertebra pedicle axial line projective point by computed tomography image reconstruction[J].中华医学杂志（英文版）,2012,125(14):2521-2524,4.基金项目
This research was funded by Public Welfare Project of Chinese Ministry of Health Research Special (No.201002014) （No.201002014）
the 973 Project Planning (No.2005CB522604) （No.2005CB522604）
the Beijing City Science &Technology New Star Classification (No.A-2008-10),the National Natural Science Fund (Nos.31171150,81171146,30971526,30801169).and the Educational Ministry New Century Excellent Talents Support Project (No.BMU20110270) （No.A-2008-10）
Doctoral Fund of Education (No.20090001120096). （No.20090001120096）
