Efficacy Observation of Target Radiofrequency Ablation Combined with Nerve Block in the Treatment of Elderly Degenerative Lumbar Spinal Stenosis
Objective:To investigate the clinical efficacy of target radiofrequency ablation combined with nerve block in the treatment of elderly degenerative lumbar spinal stenosis.Methods:From July 2020 to January 2023,19 elderly patients with degenerative lumbar spinal stenosis who were treated with target radiofrequency ablation combined with nerve block were retrospectively analyzed.Results:The operation time was 15-36 min,with an average of 20 min.There were no com-plications such as puncture wound infection,nerve root injury and intramural bleeding.Preoperative visual analogue scale(VAS)scores of low back pain were 0-5 points,with an average of 1.2 points,and VAS score of lower extremity pain was 5-9 points,with an average of 7.6 points.The VAS scores of immediate postoperative low back pain were 0-3 points,with an average of 0.5 points,and the VAS scores of lower extremity pain were 2-5 points,with an average of 3.1 points.Three months after surgery,the VAS scores of low back pain were 0-3 points,with an average of 1 points,and the VAS scores of lower extremity pain were 2-6 points,with an average of 3.8 points.All 19 cases were followed up from 3 to 7 months,with an average of 4.2 months.Three months after operation,the modified MacNab efficacy evaluation crite-ria were adopted:excellent 11 cases,good 6 cases,fair 1 case,poor 1 case,the excellent and good rate of 89.47％.Two patients rated fair or poor were eventually treated with foraminoscopy and their symptoms were relieved.Conclu-sion:Target radiofrequency ablation combined with nerve block in the treatment of elderly degenerative lumbar spinal stenosis has the advantages of less trauma and satisfactory short-term efficacy.
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