国人成年男性胸腰椎椎弓根径线和偏角与脊椎节段序数的相关性研究

目的:探讨胸腰椎椎弓根的径线和偏角与脊椎节段序数的相关性.方法:46具国人成年男性脊柱标本,拍胸椎及腰椎侧位X线片,并进行CT扫描.测量每个椎体椎弓根钉道长度、椎弓根内径宽度、椎弓根间距、椎弓根与矢状面夹角(e角)和椎弓根与横断面夹角(f角).将T1～L5脊椎节段序数按照1～17进行编号.应用SPSS 11.5软件进行统计分析.结果:T1-L4椎弓根钉道长度与脊椎节段序数呈正的直线相关(R2＝0.716);T2～T3椎弓根宽度与脊椎节段序数呈负的直线相关(R2=0.792);T8～L5椎弓根宽度与脊椎节段序数呈正直线相关(R2=0.673).T1～T4椎弓根间距与脊椎节段序数呈负直线相关(R2=0.866);T4-L5椎弓根间距与脊椎节段序数呈正的直线相关(R2＝0.771).T1～T2椎弓根f角与脊椎节段序数呈正直线相关(R2=0.767);T2～T4椎弓根f角与脊椎节段序数呈正直线相关(R2=0.908);T7～L5椎弓根f角与脊椎节段序数呈负的直线相关(R2=0.931);T1～T6椎弓根e角与脊椎节段序数呈负的直线相关(R2=0.774),T12～L5椎弓根e角与脊椎节段序数呈正的直线相关(R2=0.710).而T1～T2及T4～T7椎弓根宽度、T4～T6椎弓根f角以及T6-T12椎弓根e角与脊椎节段序数之间无显著相关性.结论:除T1～T2和T4～T7椎弓根宽度、T4～T6椎弓根f角以及T6～T12椎弓根e角外,国人成年男性胸腰椎椎弓根径线和偏角与脊椎节段序数之间有线性相关性,其回归方程有显著性意义.

Correlation between the diameter or angle of thoracic-lumbar pedicle parameters and vertebral number on Chinese adult men

Objective:To study the the correlation between the diameter or angle of thoracic-lumber pedicle and vertebral number.Method:X-ray and CT scan were performed on 46 male spine specimens.The length of pediele screw path,the cress-section angle(e) and the sagittal angle(f) of the pedicle,the width of the inner diameter of the pediele and the distance between the two pedicles were measured.The ordinal number of T1-L5 vertebral segment was numbered by 1-17.SPSS 11.5 software was used for statistical analysis.Result:The data showed a positive linear correlation with the vertebral numbers including length of T1-L4 pedicle screw path (R2=0.716),T8-L5 pedicle width (R2=0.673),T4-L5 pedicle distances (R2=0.771),T1-T2 f-angle (R2=0.767) ,T2-T4 f-angle (R2=0.908),T12-L5 pediele e-angle (R2=0.710).The negative linear correlation with thevertebral numbers included T2-T3 pedicle width(R2=0.792),T1-T4 pedicle distances(R2=0.866),T7-L5 f-an-gle(R2=0.931),T1-T6 pedicle e-angle (R2=0.774).However,the T1-T2 and T4-T7 pediele width,the T4-T6 pediele f-angle,as well as the T6-T12 pedicle e-angle had no significant correlation with the vertebral num-bers.Conclusion:Apart from the T1-T2 and T4-T7 pedicle width,the T4-T6 pedicle f-angle and the T6-T12 pedicle e-angle,the diameter or angle of the thoracic-lumbar pedicle have correlation with the vertebral numbers with meaningful linear regression equation.