腰椎侧隐窝狭窄的CT诊断

目的　研究腰椎侧隐窝狭窄症的CT诊断。方法　采用CT横断面薄层扫描 ,并测量腰椎侧隐窝前后径 ,分析侧隐窝狭窄的原因。结果　 5 6例侧隐窝狭窄 ,其前后径均 <3mm ,其中包括椎间盘突出或膨出 38例 ;小关节突增生 11例 ;黄韧带肥厚 5例。结论　侧隐窝狭窄的主要原因有 :椎间盘突出或膨出 ;小关节突增生 ;黄韧带肥厚等。它可以作为腰椎间盘CT检查诊断腰神经根压迫较可靠的依据。

CT Diagnosis of Lateral Recess Syndrome

Objective To study the CT diagnosis of lateral recess syndrome. Methods CT scanning with thin slice at transaxial plane was used to measure the size of lumbar vertebra lateral recess, and the reasons of lateral recess syndrome were analyzed. Results The width of the lateral recess of 56 cases was less than 3mm, inclu ding 38 cases with herniations or bluging of intervertibral disk,11 cases with joint process superior prominament interior 5 cases with flava ligament thicker.Conclusions The main causes of lateral recess syndrome are the herniations or bluging of intervertibral disk, joint process superior prominament interior and flava ligament thicker. It can be used as a valuable criterion in dignosing lumbar nerve root compression in CT study.