ABSTRACT
Sixty-eight patients with a surgically proven lumbar stenosis associated with disc protrusion were studied retrospectively. According to the essential clinical feature the patients were divided into three groups: Group 1, intermittent claudication (n=21), Group 2, low back pain associated with unilateral aciatic pain (n=42), and Group 3, intermittent claudication coexisting with bilateral or unilateral leg pain (n=5). The final diagnosis prior to operation was difficult to make. Surgical decompression of the spinal canal required removal of the portion of hypertrophied superior articular faced and prolapsed disc. Fifty-eight patients were followed up from 6 months to 6 years and 3 months. In 41 patients preoperative neurogenic symptoms completely disappeared, 14 still an occasinal bachache, existed and 3 moderate symptoms persisted postoperatively.
ABSTRACT
One hundred and seven patients with lumbar disc hefniation and lumbar stenosis with poor operative results are presented in this paper. According to clinical manifestation and imaging features, appropriate treatment modality was selected for each patient. Seventy-two cases were reoperated, among which excellent and good results were obtained in 60 cases (83.3%). Thirty-five patients were treated with conservative method, 28 cases improved and 7 cases exhibited no changes.The causes of operative failure and diagnostic criteri on of lumbar disc herniaton and lumbar spinal stenosis are described in detail. The indications for re-operation were discussed.
ABSTRACT
Extended hemilaminectomy was performed in the treatment of compression of the cervical spinal cord produced by ossification of the posterior longitudinal ligament, multilevel degeneration and protrusion of the intervertebral discs and simple spinal canal stenosis. The results showed that with this operation the cross sectional area of the spinal canal was enlarged by 50% of the original, and the sagittal diameter lengthened 2,5mm postoperatively, so the compression of the. spinal cord was relieved. Since the function of the spinal process, the supra-and interspinal ligaments and the structure of one side of the lamina were preserved, mechanical stability of the cervical spine was maintained.