Lerman V I, Drasnin H V
Surg Neurol. 1975 Aug;4(2):229-32.
The cause of sciatica is elusive in some cases. In a few instances it is due to the development of adhesions about the nerve root at the point of its entrance into the dural sleeve. Seven patients with sciatica in whom surgical exploration disclosed no evidence of a herniated intervertebral disc or other extradural pathology were found to have such involvement of the L5 or S1 root at the dural orifice inside the dural sac. This condition occurred in partial form in two cases and with total incarceration in five. Relief followed radicolysis and partial or total radicotomy.
坐骨神经痛的病因在某些情况下难以捉摸。在少数情况下，它是由于神经根进入硬脊膜袖处周围粘连的形成。七例坐骨神经痛患者，手术探查未发现椎间盘突出或其他硬膜外病变的证据，但发现L5或S1神经根在硬膜囊内的硬膜孔处有此类病变。这种情况在两例中呈部分形式，在五例中呈完全嵌顿形式。神经根松解术和部分或完全神经根切断术后疼痛缓解。
