Takada Eiichi, Takahashi Masaya, Shimada Kimio
Department of Orthopaedic Surgery, Faculty of Medicine, University of Okayama, Okayama, Japan.
J Orthop Surg (Hong Kong). 2001 Jun;9(1):1-7. doi: 10.1177/230949900100900102.
A prospective sequential MRI study was done to investigate the morphologic changes of the lumbar disc hernia (LDH). We also studied the relationship between the MRI changes and the type of LDH and the clinical outcome. MRI was performed every 3 months from the onset for a maximum of 24 months in 42 patients with radicular leg pain and symptoms definitely diagnosed as caused by LDH. The size of the herniated mass was determined by the ratio of the anteroposterior diameter of the spinal canal to the maximum diameter of the LDH mass on T2-weighted axial images. The clinical outcome was evaluated as excellent, good, or poor depending on leg pain and physical findings. The JOA (Japanese Orthopaedic Association) score for LDH was also used to assess the outcome. Thirty-seven (88%) of the 42 patients showed >50% reduction of the hernia on MRI 3-12 months after onset, and the morphologic changes of the herniated mass were well correlated with the clinical outcome.
进行了一项前瞻性序列MRI研究，以调查腰椎间盘突出症（LDH）的形态学变化。我们还研究了MRI变化与LDH类型及临床结果之间的关系。对42例明确诊断为由LDH引起的放射性腿痛和症状的患者，从发病开始每3个月进行一次MRI检查，最长持续24个月。通过T2加权轴向图像上椎管前后径与LDH肿块最大直径的比值来确定突出肿块的大小。根据腿痛和体格检查结果，将临床结果评估为优、良或差。还使用日本骨科协会（JOA）的LDH评分来评估结果。42例患者中有37例（88%）在发病后3 - 12个月的MRI检查中显示突出物缩小>50%，突出肿块的形态学变化与临床结果密切相关。
