脊髓后根入髓区切开术治疗创伤后幻肢痛的长期疗效分析

LONG-TERM EFFECTS OF DORSAL ROOT ENTRY ZONE LESIONS ON POST-TRAUMATIC PHANTOM LIMB PAIN

目的:评价脊髓后根入髓区(dorsal root entry zone,DREZ)切开术治疗创伤后幻肢痛的长期疗效。方法:16例于2005年至2008年于我院功能神经外科行DREZ切开术的创伤后幻肢痛患者,其中14例有神经根撕脱,2例神经根萎缩。记录患者手术后的口述疼痛缓解率(0%～100%)和并发症,疼痛缓解≥50%认为手术疗效良好。结果:随访6个月至4年,平均24.0±15.0个月,11例(68.8%)患者手术疗效良好。术后出现同侧下肢严重深感觉障碍1例,无其它严重并发症。结论:DREZ切开术治疗创伤后幻肢痛的长期疗效良好。

Objective：To evaluate the long-term therapeutic effects of dorsal root entry zone（DREZ） lesions on post-traumatic phantom limb pain.Methods：16 patients who underwent DREZ lesions for post-traumatic phantom limb pain were studied.Root avulsion was found in 14 patients.Oral pain relief（0%~100%） and surgical complications were followed up.Satisfactory result was defined as 50% to 100% oral pain relief.Results：The average follow-up period was 24.0 ± 15.0 months（ranged 6 months to 4 years）,and 11 patients got satisfactory pain relief.There was only one patient with severe surgical complication（severe sensory disturbance in the ipsilateral lower limb）.Conclusion：Good long-term results could be obtained in patients with post-traumatic phantom limb pain after DREZ lesions.