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1、一种枢椎“椎弓根”进钉技术的建立及其解剖学测量第33卷第3期2010年6月遵义医学院ACTAACADEMIAEMEDICINAEZUNYIVo1.33No.3Jun.2010一种枢椎"椎弓根''进钉技术的建立及其解剖学测量蔡小军,何斌,韩建华,宫开桓,李代君(遵义医学院第三附属医院脊柱外科,贵州遵义563002)[{商要】目的通过研究枢椎的相关解剖学标记,建立枢椎"椎弓根"螺钉新的进钉参考标记及进钉技术.方法取40套成人枢椎干骨标本,测量枢椎下关节突,枢椎横突孑L内缘与枢椎"椎弓根"的位置关系,建立枢椎"椎弓根"螺钉新的进钉技术.结
2、果①枢椎横突孔内缘与正中矢面的垂直距离为(18.24~1.34)mm;枢椎下关节突的中点与正中矢面的垂直距离为(17.31~1.35)mm,枢椎横突孔内缘位于枢椎下关节突中点外侧lmm处,枢椎"椎弓根"峡部中点位于枢椎下关节突中点内侧2.45mm处.②枢椎"椎弓根"新的进钉技术的内倾角为(25.03~3.82).,上倾角为(20.00~2.34).,螺钉在枢椎"椎弓根"内行走距离为(27.77~1.88ram).结论可以采用横突孔内缘为进钉解剖学标志,枢椎下关节突中点外侧lmm及枢椎"椎弓根"峡部中点作为枢椎"椎弓根"螺钉的进钉点和
3、进钉方向.【关键词]枢椎;椎弓根;解剖学测量【中图分类号】R322.7【文献标识码】A【文章编号】1000-2715(2010)03---0220—03Theestablishmentofanew"pedicle"screwentrancetechnique0fa】I【isanditsanatomicalmeasurementsCAIXiao-jun,HEBin,HAN觎一huaeta1.(DepartmentofOrthopedics,thethirdAffiliatedHospitalofZunyiMedicalCollege,
4、Guizhou563002.China)[Abstract]ObjectiveTosetupanew"pediele"screwentrancetechhiquewithanewreferencemarkerbyanalyzingtheanatomyofassociatedlandmarksonaxis.MethodsInordertoestablishanew"pedicle"screwentrancetechniqueofaxis,specimensof40setsadultdry—axialbonewerecollectedt
5、odisclosuretherelationbetweenC2inferiorarticularprocess,medialborderoftransverseforamenandC2"pedicle"ofaxis.Results①Theverticaldistancefrommedianplanetomedialborderoftransverseforamenwasaveragedat(18.24+1.34)mm,thedistancefromthemedianplanetothemidpoint0fC2inferiorarti
6、cularprocesswasaveragedat(17.31~1.35)mm.ThemedialborderofC2transverseforamenlocatedatlmmoflateralborderofinferiorarticularprocess.ThemidpointofC2isthmusWaslocatedat2.45mmofthemedialborderofmidpointofC2inferiorarticularprocess.(Inthenewentrancemethodwedeveloped.theintro
7、versionangleofaxial"pedicle"screwsis(25.03~3.82)degreeandtheslopeangleis(20.00_+2.34)degree,screwwastravelingforthedistanceof(27.77~1.88,mminsidethe"pedicle"ofaxis.ConelmionsThemedialboMeroftransverseforamencouldbeusedasaveryconvenientkeyanatomiclandmarkforscrewentranc
8、e,lmmoflateralborderofinferiorarticularprocesscanbetheenterpoint,andthemidpointofC2isthmuscouldbeguidanceforentrance.
