Dreval O N
Department of Neurosurgery, Central Institute of Postgraduate Training of Doctors, Moscow, Russia.
Acta Neurochir (Wien). 1993;122(1-2):76-81. doi: 10.1007/BF01446990.
One, if not the only effective way of treating pain due to preganglionic avulsion of the brachial plexus is the Dorsal Root Entry Zone (DREZ) lesion procedure. In 1985 the author began to use ultrasound as a lesion-maker for operations in the DREZ. Since then, 127 (3 patients were operated on twice) DREZ-Operations have been carried out on 124 patients suffering from chronic pain due to brachial plexus avulsion. Different technical lesioning modalities were employed: ultrasonic discontinuous DREZ lesions in 20 cases and a new modality: ultrasonic DREZ-sulcomyelotomy in 107 cases. Analysis of the results after ultrasonic DREZ-operations revealed that ultrasonic DREZ-sulcomyelotomy was the most effective technical modality. Immediately after operation good pain relief was obtained in 103 (96%) out of the 107 patients operated on with the ultrasonic DREZ-sulcomyelotomy method, and in 15 (75%) out of the 20 patients with ultrasonic discontinuous DREZ-lesions. The total follow-up study (47.5 months on average) revealed 87% good results overall.
治疗臂丛神经节前撕脱所致疼痛的一种（如果不是唯一的）有效方法是背根入髓区（DREZ）毁损术。1985年，作者开始使用超声作为DREZ手术的毁损工具。从那时起，已对124例因臂丛神经撕脱导致慢性疼痛的患者进行了127例（3例患者接受了两次手术）DREZ手术。采用了不同的技术毁损方式：20例采用超声间断DREZ毁损，107例采用一种新的方式：超声DREZ沟髓切开术。对超声DREZ手术后的结果分析表明，超声DREZ沟髓切开术是最有效的技术方式。采用超声DREZ沟髓切开术治疗的107例患者中，术后立即有103例（96%）疼痛得到良好缓解，采用超声间断DREZ毁损的20例患者中有15例（75%）疼痛得到良好缓解。总的随访研究（平均47.5个月）显示总体良好结果率为87%。
