12例腰椎间盘突出合并腰骶神经背根节嵌压

目的：了解腰椎间盘同合并腰骶神经背根节（ＤＲＧ）嵌压的机制。方法：１２例腰椎间盘突出患者术中发现：髓核切除后神经根张力仍较大并固定，沿神经根探查发现腰骶神经ＤＲＧ充血并肿大，直径０．８－１．２ｃｍ，平均１．１ｃｍ。嵌压物为增生的上关节突和增生肥厚的关节囊韧带。１２例病人共探查１５个ＤＲＧ，其中位于椎间孔６例，椎管和椎间孔交界７例，椎间孔外２例同时合并腰神经在椎间孔外嵌压。

Lumbar disc herniation(LDH) with entrapment of Lumbo sacral dorsal root ganglia(DRG):A clinical study of 12 cases

Objectives: To understand the mechanics of LDH with entrapment of lumbo sacral DRG Methods:12 patients with LDH were operated for discectomy On operative findings:The nerve roots had more tension and fixnation,even after the discs were removed The DRGs were found congestion and swelling,and were entrapped by the hyperplasia and hypertrophy of supprior articular process and capsular ligament,when explored along the course of the nerve roots Its diameter were 0 8 1 2cm,average 1 1cm 12 patients with 15 DRGs The DRGs were located in intraforaminal in 6 cases,connection of spinal cannal and intraforaminal in 7 cases,extraforaminal in 2 cases with the lumbar nerve entrapped out of intervertebral foramen Results:The lumbago and sciatica were relived completed in 9 patients,improved in 2 patients and not changed in one patient Follow up 0 5-5 years,average 1 8 years,excellent 9 cases,good 2 cases,no change 1 case Conclusions:Degenerative changes of lumbar discs and intervertebral articular lead to the hyperplasia and hypertrophy in supprior artcular process and capsular ligament,and intervertebral foramen stenosis The DRG lay within relatively It is an important factor for the lumbago and sciatica as well as for those who have not improved or recurred after disectomy