Clinical Study of Lumbar Disc Herniations
1987
Between 1980 and 1985, 147 patients with lumbar disc herniations were treated by discectomy and/or foraminotomy., We investigated preoperative clinical and myelographic findings.Lasegue's sign was positive in 50% of cases. It was positive more frequency in younger patients. Diagnosis of the clinical level of L4/5 disc herniation was more accurate than of L5/, S1 disc herniation. The average sagittal diameter of all dural tubes was 13.8mm and that of the dural tubes with complete block was 11.6mm.Ventral defect of L4/5 disc herniation was larger than that of L5/S1 disc herniation.
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