胸椎椎弓根外固定技術(shù)的臨床應(yīng)用

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1、臨床醫(yī)學(xué)DepartmentofOrthopaedics,ThirdAffiliatedHospitalofSunYat?scnUnivcr?sity.Guangzhou510630.GuangdongProvince,ChinaDongJian-wcnY^,Studyingfordoclo?rate.Attendingphysician.Depart?mentofOrthopac?dies.ThirdAffilialedHospiialofSunYat-senUniversity,Guangzhou510630.GuangdongProvince.Chinajianwendong?126

2、.comReceived:2008-09-17Accepted:2(X)8-KM4胸椎椎弓根外固定技術(shù)的臨床應(yīng)用☆泄健文，戎利民，劉斌，謝沛根，邱奕雁，蔡道章ClinicalapplicationofextrapedicularscrewfixationinthoracicspineDongJian-wen,RongLi-min,LiuBin,XiePei-gen,QiuYi-yan,CaiDao-zhangAbstract:From2004to2(X)7,34casesweretreatedwithextrapedicularscrewfixationinDepartmentofOrth

3、opaedics,ThirdAffiliatedHospitalofSunYat-senUniversity.Thescrewentrypoint,angle,depthanddiameterweremeasuredanddefinedonthethoracicvertebraepediclebyCTthin-slicescaninstandardproneforallcasesbeforeoperation.ThescrewentrypointwaslocatedatthelipofIransvereeprocess?Theaverageinclinationangleshouldbe1

4、0°-20’headwardand30”-40°towardneutrallinerespectively.Thescrewwasinsertedandenteredintothevertebralbodyalongtheexternalcortexofpedicle.Theintegrityofcorticalbonearouixlscrews,thedistancetosegmentalbloodvesselsandthepenetrationofcortexwereobservedafteroperationtoevaluatetheaccuracyandsafetyofscrewp

5、lacement.Among160thoracicpediclescrewsthatwereimplantedin34cases,148screws(92.5%)wereaccunilelyinsertedinsidethecostotransverseunit,and12screws(7.5%)weremisplacedaccordinglotheimageofX-rayandCTthin-slicesean.Comparedtothetranspedicularfixation,extrapedicularfixationhasadvantagesofwiderinsertionare

6、a,longerscrewandbiggercohesionangle?So.itisasaferandsimpleralternativeforthoracicposteriorfixationbecauseofitstheoreticalbiomechanicalsupcriority.DongJW,RongLM,LiuB.XiePG,QiuYY,CaiDZ?Clinicalapplicalionofextrapedicularscrewfixationinthoracicspine.ZhongguoZuzhiGongchengYanjiuyuLinchuangKangfu2008;1

7、2(44):8697-8700(China)[http://www.crter.cnhttp://en.zglckf.com]摘要：應(yīng)用椎弓根外內(nèi)固定技術(shù)2004/2007年在中山大學(xué)附屬第三醫(yī)院骨科治療34例患者，固定前采用CT加密掃描測(cè)量進(jìn)釘點(diǎn)、進(jìn)釘點(diǎn)至椎體前緣的深度、進(jìn)釘角度和直徑，固定中椎弓根釘入點(diǎn)為橫突尖，進(jìn)釘方向?yàn)槠骄蝾^側(cè)傾斜10°?20。.與中線成角30。~40°，順椎弓根外側(cè)皮質(zhì)進(jìn)入椎體,固定后CT加密