退变性腰椎滑脱CT下小关节面角的测量与意义

Objective To observe and measure the lumbar facet joint angle of patients with degenerative spond ylolisthesis and normal people and estimate the relationship between sagittal facet joint and degenerative spondylolisthes through CT scanning.Methods Thirty seven persons without back problems and 24 patients with degenerative spondylolisthesis were collected as studing objects.The facet joint of L 3～S 1 were scanned with CT and the facet joint angles were measured.Results Except for degenerative changes,the facet joint angle at L 4～5 was much smaller in patients with degenerative spondylolisthesis than that in normal group.Conclusions Over sagittal inclination of the degenerative facet joint is one of the most important factors which could cause degenerative spondylolisthesis.

中原地区螺旋CT测量第4腰椎、第5腰椎小关节面角的测定及意义分析

目的测量中原地区螺旋CT下第4腰椎（L4）、第5腰椎小关节面角及意义分析。方法测量2010年8月至2011年4月行郑州大学第一附属医院德国西门子16排螺旋CT检查的所有腰椎CT片，使用PACS系统测量骨窗下第4—5腰椎、第5腰椎～第1骶椎椎间隙小关节面角度，按CT检查结果分为6组，检查阴性组1382例，第4—5腰椎椎间盘突出组662例，第5腰椎-第1骶椎椎间盘突出组859例，第4—5腰椎并第5腰椎一第1骶椎椎间盘突出组676例，第4腰椎退行性滑脱组107例，第5腰椎峡部裂性滑脱组86例。应用SPSS15．0统计软件分析以上数据是否存在统计学差异。结果检查阴性组（A组）：第4、5腰椎小关节面角的均值分别为43°±11°和49°±11°，均值的95％置信区间分别为42°-45°、47°-50°；L4退行性滑脱组（E组）：L4小关节面角度与其他组值相比差异有统计学意义（P〈0．05），其他组之间相比差异无统计学意义（P〉0．05）。结论中原地区人群第4、5腰椎小关节面角的正常值与其他地区比较差异有统计学意义，第4腰椎小关节面角度减小与第4腰椎椎体退行性滑脱有直接联系，临床治疗下腰椎退行性变疾患时应根据小关节面角度的变化采取个体化治疗。