Although accidental subdural injection is a well - recognized complication of epidural block , only a mere handful cases have been substantially proven by radiological evidence 摘要意外地硬脊膜下腔麻醉已被确认为硬脊膜外腔麻醉的并发症。
A case of extradural angiolipoma with spinal cord compression is reported . a 25 year - old female debeloped gradually progressive lower limbs weakness during a two - year period 摘要硬脊膜外血管性脂肪瘤是一种少见的良性肿瘤，组织学上包含了不同比例的血管和脂肪组织。
We analyzed this man - made obstruction of the epidural catheter and emphasized the position of the catheter into the connector must be checked first when the epidural catheter obstruction was present 我们分析了此种人为导致导管阻塞的原因，并强调当发生硬脊膜外腔导管阻塞时，首先要做的步骤就是检查导管是否完全地置入导管接头内。
Therefore , we recommend that when a subdural injection is evident or suspected , reinsertion of the catheter in the epidural space via another entry or contemplation of a switch to another anesthetic technique is mandatory 但因硬脊膜下腔续注射有其不可预知的危险性，仍建议中重新于其他位置当试硬脊膜外腔麻醉或更改其他麻醉方式。
Here we present a female patient suffering from cervical cancer , who , while radical hysterectomy finished , experienced obstruction of the epidural catheter because the catheter was not inserted to full length into the connector 这位55岁的女性，在执行广泛性子宫切除术后接受硬脊膜外腔止痛术，但因我们未能将硬脊膜外腔导管完全地置入导管接头内而造成导管阻塞。
Root of backbone nerve around is in backbone ganglion is far side assemble , scabbard of stiff backbone film also closes subsequently for one scabbard , become backbone nerval velamen , namely the film outside nerve , because backbone ganglion is located in between vertebra kong shuiping , the length of backbone nerve root has variation consequently 脊神经前后根在脊神经节远侧会合，硬脊膜鞘也随之合为一鞘，成为脊神经的被膜，即神经外膜，由于脊神经节位于椎间孔水平，脊神经根的长度因而有变异。
Before backbone nerve , hind the is highlighted by film of spinal cord stiff backbone and arachnoid bursa more scabbard place when the root walks out of vertebra to be in charge of is wrapped by , call backbone film sleeve , the clearance between two scabbard and arachnoid next antrum are interlinked , nerve root is complete dip in cerebrospinal fluid , from this before , hind two wear film of classics stiff backbone severally , the scabbard that forms for stiff backbone film respectively laps , the fu in two by there is one cranny to call backbone film pocket between putamen , this scabbard is wrapped by hind the backbone ganglion of the root 脊神经前、后根走出椎管时多被脊髓硬脊膜及蛛网膜囊突出的鞘所包被，称为脊膜袖，两鞘之间的间隙和蛛网膜下腔相通，神经根完全浸于脑脊液中，自此前、后两根各自穿经硬脊膜，并分别为硬脊膜形成的鞘包裹，在两根的覆被硬膜之间有一裂隙称为脊膜囊，此鞘并包被后根的脊神经节。
