Moossy J J, Nashold B S
Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pa.
Appl Neurophysiol. 1988;51(2-5):198-205. doi: 10.1159/000099963.
We have found dorsal root entry zone (DREZ) lesions to be an effective treatment of chronic deafferentation pain in patients who have had avulsions of the dorsal rootlets from the spinal cord. Eight patients were operated in whom chronic pain of the lower extremity resulted from dorsal root avulsions from the conus medullaris. In 7 of the 8 patients, the mechanism of injury was a motor vehicle accident; all 7 sustained severe pelvic trauma. Seven of the 8 patients remained pain-free, off all narcotics, with an average follow-up of 33 months. All patients had DREZ lesions of the conus performed by radiofrequency techniques.
我们发现，对于脊髓背根小束撕脱的患者，背根入髓区（DREZ）损伤是治疗慢性去传入性疼痛的有效方法。8例因圆锥部背根撕脱导致下肢慢性疼痛的患者接受了手术。8例患者中有7例的损伤机制是机动车事故，且均遭受了严重的骨盆创伤。8例患者中有7例在平均33个月的随访期内无需服用任何麻醉药品，疼痛消失。所有患者均通过射频技术对圆锥部进行了DREZ损伤。
