中国伤残医学
中國傷殘醫學
중국상잔의학
CHINESE JOURNAL OF TRAUMA AND DISABILITY MEDICINE
2015年
10期
2-3
,共2页
颈椎%椎弓根螺钉%进钉点%解剖
頸椎%椎弓根螺釘%進釘點%解剖
경추%추궁근라정%진정점%해부
Cervial spine%Pedicle screw%Entry point%Anatomy
目的：探讨第7颈椎椎弓根进钉点的解剖定位研究。方法：选取30具成人第7颈椎干燥标本进行解剖学观测。测量成人第7颈椎椎弓根的高度、宽度，以侧块上缘、外侧缘及侧块内上角与外下角连线围成的三角形中点作为进钉点，测量此进钉点植入椎弓骨螺钉所需角度。结果：第7颈椎椎弓根可容纳直径3．5mm，长度24mm椎弓根螺钉。侧块上缘、外侧缘及侧块内上角与外下角所构成三角形近似等边三角形，解剖学结构清晰，以此进钉点植入椎弓根螺钉所需外展角约35度。结论：以侧块上缘、外侧缘及侧块内上角与外下角连线围成的三角形中点作为进钉点，解剖学特征恒定，标志清晰，易于定位，可以此作为临床定位第7颈椎椎弓根螺钉进钉点解剖学依据。
目的：探討第7頸椎椎弓根進釘點的解剖定位研究。方法：選取30具成人第7頸椎榦燥標本進行解剖學觀測。測量成人第7頸椎椎弓根的高度、寬度，以側塊上緣、外側緣及側塊內上角與外下角連線圍成的三角形中點作為進釘點，測量此進釘點植入椎弓骨螺釘所需角度。結果：第7頸椎椎弓根可容納直徑3．5mm，長度24mm椎弓根螺釘。側塊上緣、外側緣及側塊內上角與外下角所構成三角形近似等邊三角形，解剖學結構清晰，以此進釘點植入椎弓根螺釘所需外展角約35度。結論：以側塊上緣、外側緣及側塊內上角與外下角連線圍成的三角形中點作為進釘點，解剖學特徵恆定，標誌清晰，易于定位，可以此作為臨床定位第7頸椎椎弓根螺釘進釘點解剖學依據。
목적：탐토제7경추추궁근진정점적해부정위연구。방법：선취30구성인제7경추간조표본진행해부학관측。측량성인제7경추추궁근적고도、관도，이측괴상연、외측연급측괴내상각여외하각련선위성적삼각형중점작위진정점，측량차진정점식입추궁골라정소수각도。결과：제7경추추궁근가용납직경3．5mm，장도24mm추궁근라정。측괴상연、외측연급측괴내상각여외하각소구성삼각형근사등변삼각형，해부학결구청석，이차진정점식입추궁근라정소수외전각약35도。결론：이측괴상연、외측연급측괴내상각여외하각련선위성적삼각형중점작위진정점，해부학특정항정，표지청석，역우정위，가이차작위림상정위제7경추추궁근라정진정점해부학의거。
Objective:To localize anatomic entry point for seventh cervical vertebrae.Methods: 30 bone specimens were used to measure the width and height of C7 pedicle.The triangle were formed with three body landmarks:surperior margin, lateral margin and di-agonal of lateral mass.The midpoint of this triangle were used for entry point of pedicle screw.The abduction angle and cephalad angle were also measured.Results:The C7pedicle screw were long and wide enough to accept 24*3.5mm pedicle screw.The triangle formed by surperior margin, lateral margin and diagonal of lateral mass easy to identify.Abduction angle were 35 degree approximately.Conclu-sion:Anatomical symbol of the entry point using midpoint point formed by surperior margin, lateral margin and diagonal of lateral mass were easy to be exposed and identified in operation.Transpedicular screw could be precisely placed with limited exposure.
