腰椎间盘突出症的磁共振成像与手术对照研究

MRI AND SURGICAL CORRELATIVE STUDY OF LUMPAR DISC HERNIATION

对40例腰椎间盘突出症的磁共振成像(MR)与手术结果做回顾性对照研究。MIR对间盘突出最具特征性改变是髓核形态上的变化。MRI诊断腰椎间盘突出、后纵韧带破裂、神经根受压及黄韧带肥厚与手术符合率分别为:98.2％,88.8％、46.4％及64.4％。突出间盘中变性的发生率为71％。并测量了有椎管狭窄的骨性椎管矢状径和硬膜囊矢状径,提出在MRI上硬膜囊矢状径≤10mm时可考虑有椎管狭窄。

The magnetic resonance imaging (MRI) of 40 lumbar disc herniation cases were studied correlatively with the surgical results. The morphology of disc herniation was most specific on MRI. The MRI diagnosis of disc herniatien; posterior longitudinal ligament destruction; compression of neural foramen and hypertrophy of ligamentum flavum correlated well with surgical findings. The correlative rate was 98.2%, 88.~%, 46.4% and 64.4% respcctively. The incidence of disc degeneration in disc herniation was 71%. The A-P diameter of the bony spinal canal and that of the dural sac were measued in cases of spinal stenosiso It was suggested that the diagnosis of which can le established when the A-P diameter of the dural sac was≤10mm.