前路经寰枢关节螺钉内固定术置钉安全性的CT测量研究Study of CT measurement about the security of anterior atlantoaxial transarticular screw fixation
郑宇;蔡贤华;黄卫兵;戴晓勤;李明;
摘要(Abstract):
[目的]探讨前路经寰枢关节螺钉内固定术螺钉置入的相对安全范围,为国人行此手术提供CT解剖学依据。[方法]采用多层螺旋CT(MSCT)对20套中国成人常规福尔马林浸泡的寰枢椎标本及30例健康中国成年自愿者的寰枢椎行2.0 mm层厚扫描,1.0 mm层厚重建,在容积重建(VR)及多平面重建(MPR)图像上全方位观察并利用GE RA600 PACS工作站AW三维测量软件进行相关解剖学数据测量,最后对所得结果进行统计学分析,评价置钉安全性。[结果]前路经寰枢关节螺钉内固定术以枢椎前弓下缘与枢椎椎体侧缘交界点上方4 mm处为进针点,在相对于矢状面上螺钉置入的外偏角的参考值范围为17.69°~21.13°,相对于冠状面上螺钉置入的后倾角的参考值范围为11.75°~19.50°,内侧钉道长度的参考值范围为11.19~27.51mm,外侧钉道长度的参考值范围为15.61~31.84mm。[结论]前路经寰枢关节螺钉内固定术是安全可行的,螺钉置入时的理想钉道角度为外偏18°~21°,后倾12°~20°,螺钉长度为16~28 mm。
关键词(KeyWords): 前路;上颈椎;内固定;CT测量
基金项目(Foundation): 全军医学科学研究“十一五”计划攻关课题(08G031)
作者(Author): 郑宇;蔡贤华;黄卫兵;戴晓勤;李明;
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DOI:
参考文献(References):
- [1]Spoor AB,Diekerhof CH,Bonnet M,el al.Traumatic complex dislocationof the atlanto-axial joint with odontoid and C2 superior articular facetfracture[J].Spine,2008,19:708-711.
- [2]Finn MA,Bishop FS,Dailey AT.Surgical treatment of occipitocervical in-stability[J].Neurosurgery,2008,5:961-969.
- [3]Barbour JR.Screw fixation in fractures of the odontoid process[J].S AustClinics,1971,16:20.
- [4]Reimann B,Eggers C.Die transartikulare verschraubung von ventral zurstabilisierung der dens-axis-fraktur bei osteoporose im hohen alter[R].In:eine gering invasive alternative zum dorsalen vorgehen.Berlin,Germany,2004.
- [5]Koller A,Kammermeier H,Ulbricht V,et al.Anterior retropharyngealfixation C1、2 for stabilization of atlantoaxial instabilities:study of feasi-bility,technical description and preliminary results[J].Eur Spine,2006,15:1326-1338.
- [6]Sen MK,Steffen T,Beckman L,et al.Atlantoaxial fusion using anteri-or transarticular screw fixation of C1、2:technical innovation and biome-chanical study[J].Eur Spine,2005,5:512-518.
- [7]Lapsiwala SB,Anderson PA,Oza A,et al.Biomechanical comparisonof four C1 to C2 rigid fixative techniques:anterior transarticular,posteri-or transarticular,C1 to C2 pedicle,and C1 to C2 intralaminar screws[J].Neurosurgery,2006,3:516-521.
- [8]余洋,蔡贤华,黄卫兵,等.前路经枕-寰-枢关节螺钉内固定力学的三维有限元分析[J].中国矫形外科杂志,2010,21:1804-1808.
- [9]Lu J,Ebrabeim NA,Yang H,et al.Anatomic considerations of ante-rior transarticular screw fixation for atlantoaxial instability[J].Spine,1998,11:1229-1236.
- [10]蔡贤华,万文兵,陈庄洪,等.前路经寰枢关节螺钉内固定术的解剖学测量及其临床意义[J].中国矫形外科杂志,2008,10:768-770.
- [11]Mac-Thiong JM,Aubin CE,Dansereau J,et al.Registration and geomet-ric modelling of the spine during scoliosis surgery:a comparison study ofdifferent pre-operative reconstruction techniques and intra-operativetracking systems[J].Med Biol Eng Comput,1999,4:445-450.
- [12]Christensen DM,Eastlack RK,Lynch JJ,et al.C1anatomy and di-mensions relative to lateral mass screw placement[J].Spine,2007,8:844-848.
- [13]Madawi AA,Casey AT,Solanki GA,et al.Radiological and anatomi-cal evaluation of the atlantoaxial transarticular screw fixation technique[J].Neurosurgery,1997,6:961-968.