【作者】 沈爱东； 徐瑞生；

【Author】 Shen Ai-dong,Sun Hui-qing.To whom correspondence should be addressed,Department of Orthopedic Surgery,Jiangyin No.1 People’s Hospital,Wuxi 214400,China

【机构】 江苏江阴市人民医院； 江苏无锡市第三人民医院；

【摘要】 [目的]观察腰椎滑脱时椎体间接触面积变化的规律和临床意义。[方法]采集25套L4椎体下表面和L5椎体上表面的图像,在二维平面上均分为14步模拟腰椎滑脱过程,Image-ProPlus软件计算每一滑脱点(n)椎体间重叠面积Sn,取平均值后再换算成百分面积(Sn%=Sn/S*100%),研究0～100%滑移时椎体间接触面积的变化规律。根据此规律提出新的腰椎滑脱临床分期,并应用之指导治疗56例腰椎滑脱患者。[结果]腰椎滑脱过程中,Sn%的变化是一双曲线:滑脱率0～23%阶段,Sn%降低较缓慢;23～44%阶段,Sn%的变化明显加快;44～100%阶段,Sn%的变化再次变缓,拐点分别出现在一维滑脱率的(23±2.02)%和(44±1.46)%处。48例腰椎滑脱患者获得随访,临床疗效按Staufee标准优良率达90%左右。[结论]腰椎滑脱时椎体间接触面积的变化是非线性的,有助于腰椎稳定性评估和指导腰椎滑脱的临床治疗。更多还原

【Abstract】 [Objective]To study intervertebral contact area’s changing regularity of lumbar spondylolisthesis, as well as it’s clinical effects.[Method]Super-surface of L5 vertebra and sub-surface of L4 from twenty five cases were taken by a digital camera and computer simulation spondylolisthesis process and every intervertebral contact area(Sn) was measured by Image-Pro Plus software.Research rule of vertebral bodies of the contact area.According to the new rules proposed clinical stage,lumbar olisthe and application of 56 cases with lumbar olisthe guiding treatment.[Results]During lumbar spondylolisthesis process, Sn%(Sn%= Sn/S*100%)changes like a hyperbola.Sn%lost slowly during spondylolisthesis rate 0～23%and lost quickly during 23%～44%,then it become slowly once again after spondylolisthesis rate 44%.The inflection points appear in the 23%and 44%.48 patients were followed up,according to the clinical curative effect Staufee standard rate of about 90%.[Conclusion]The intervertebral contact area presents a non-linear change,which is helpful to judge the stability of lumbar spine and guide the treatment of spondylolisthesis.更多还原