关键词: 多节段, 神经阻滞, 定位诊断, 腰椎

Abstract: 【Abstract】〓Objective〓To investigate the effect of modified selective nerve root block in multiple segmental degenerative lumbar disease. Methods〓Seventy-one patients with multiple segmenatl degenerative lumbar disease were included in the study, for whom the vertebral disease were hard to perform accurate positioning by radiological examination. All the patients underwent modified selective nerve root block from November 2010 to February 2014. After the modified selective nerve root block, the corresponding treatment was performed to define the responsible vertebral bodies and the responsible nerve root. The preoperative assessment and the post operative efficacy in 7 days,3 months. 6 months and last follow-up after operation were investigate by Japanese Orthopaedic Association(JOA), pain visual analog score(VAS) modified MacNab criteria. Results〓 All cases received follow-up for 6 to 36 months after surgery(an average of 19.1 months). Postoperative VAS scores and JOA scores of different periods were obviously improved than preoperative ones according to the modified MacNab criteria evaluation. Of 71 patients, clinical efficacy was optimal in 53 cases, good in 13 cases, poor in 3, and 2 cases failed. Excellent or good outcomes were obtained in 92.9%. Conclusion〓The modified selective nerve root was effective for diagnosis of multiple segmental degenerative lumbar in patients whose disease vertebral bodies were hard to be defined.

Key words: Lumbar vertebrae, Locating diagnosis , Nerve block, Multiple segmental