CAJ | 학술논문

目的：通过测量退行性腰椎滑脱（ DS）的小关节有关数据，观察小关节面的改变，探讨引起退行性腰椎滑脱的可能局部因素。方法应用64层螺旋CT对退行性L4～5腰椎滑脱的28例患者（滑脱组）与腰部疼痛但无腰椎滑脱的78例患者（对照组）的CT图像作小关节形态及其结构特点的对比分析。测量小关节椎弓根角、椎间小关节角角度，对所获的数据进行2组兼得参数t检验分析。结果 DS组L4～5矢状面椎弓根角平均值为左侧119．0°±2．2°、右侧118．8°±1．9°，对照组分别为左侧102．9°±1．2°、右侧104．7°±1．2°；滑脱组L4～5轴面小关节角平均值为左侧41．1°±1．2°、右侧29．0°±1．2°，对照组平均值分别为左侧45．5°±2．1°，右侧45．1°±1．2°。两组L4～5小关节椎弓根角、小关节夹角的差异均有统计学意义（P值均＜0．05）。结论 L4～5矢状面椎弓根角和轴面小关节角的改变对诊断退行性腰椎滑脱有重要意义。
목적：통과측량퇴행성요추활탈（ DS）적소관절유관수거，관찰소관절면적개변，탐토인기퇴행성요추활탈적가능국부인소。방법응용64층라선CT대퇴행성L4～5요추활탈적28례환자（활탈조）여요부동통단무요추활탈적78례환자（대조조）적CT도상작소관절형태급기결구특점적대비분석。측량소관절추궁근각、추간소관절각각도，대소획적수거진행2조겸득삼수t검험분석。결과 DS조L4～5시상면추궁근각평균치위좌측119．0°±2．2°、우측118．8°±1．9°，대조조분별위좌측102．9°±1．2°、우측104．7°±1．2°；활탈조L4～5축면소관절각평균치위좌측41．1°±1．2°、우측29．0°±1．2°，대조조평균치분별위좌측45．5°±2．1°，우측45．1°±1．2°。량조L4～5소관절추궁근각、소관절협각적차이균유통계학의의（P치균＜0．05）。결론 L4～5시상면추궁근각화축면소관절각적개변대진단퇴행성요추활탈유중요의의。
Objective The aim of this study was to analyze the mechanism of degenerative spondylolisthesis ( DS ) through measuring vertebra arch angle and facet joint degeneration with 64-slice spiral computed tomography (CT).Methods One hundred and six patients complained of lumbodynia were examined with 64-slice CT.In 28 of 106 patients have lumbar spondylolisthesis, while the other 78 cases have not. The vertebra arch angles of all cases were measured and the facet joint degenerations were analyzed.Results L4—5 vertebra arch angle in DS group were 119.0°±2.2°( left) and 118.8°±1.9° (right),respectively.L4—5 vertebra arch angle in control group were 102.9°±1.2°(left) and 104.7°± 1.2°(right),respectively.The joint angle in DS group were 41.1°±1.2°(left),and 29.0°±1.2°(right), respectively.The joint angle in control group were 45.5°±2.1°(left),and 45.1°±1.2°(right), respectively.There were significant differences of L4—5 vertebra arch angle and more serious of facet joint degeneration( P <0.05 ) .Conclusion L4 vertebra arch inclination and facet joint degeneration were important to diagnosis of spondylolisthesis.