Salenius P, Laurent L E
Acta Orthop Scand. 1977;48(6):630-4. doi: 10.3109/17453677708994809.
Over a period of 6 years (1960-65), 886 patients were operated on for herniated lumbar disc. In 1971, 695 of these patients (78.5 per cent) answered a questionnaire. The material was analysed with the aid of a computer. Persons in the age groups 30-39 (38 per cent) and 40-49 (34 per cent) were most prone to develop sciatica. At operation the distribution of positive findings was found to be 5.7 per cent at level L3-4, 58.3 per cent at L4-5 and 36 per cent at L5-S1. Myelography with a water-soluble medium was performed preoperatively in all cases and gave a correct diagnosis of level in 90.2 per cent. The late results were good in 56 per cent of patients and 63 per cent returned to their former occupation.
在6年期间（1960 - 1965年），886例患者接受了腰椎间盘突出症手术。1971年，其中695例患者（78.5%）回答了一份调查问卷。借助计算机对这些资料进行了分析。30 - 39岁年龄组的人（38%）和40 - 49岁年龄组的人（34%）最容易发生坐骨神经痛。手术时发现阳性结果的分布为：L3 - 4节段占5.7%，L4 - 5节段占58.3%，L5 - S1节段占36%。所有病例术前均采用水溶性造影剂进行脊髓造影，对病变节段的正确诊断率为90.2%。56%的患者术后远期效果良好，63%的患者恢复了原来的工作。
