Naylor A
J Bone Joint Surg Br. 1979 Aug;61-B(3):306-9. doi: 10.1302/0301-620X.61B3.479253.
The spinal stenosis syndrome is a potential hazard when congenital or developmental narrowing of the bony canal, particularly in its lateral recesses where it can be demonstrated by axial tomography, places the emergent nerve root and its blood supply at risk to further small compressive elements. When lumbar disc degeneration allows rotatory and lateral instability, posterolateral bulging of the annulus fibrosus into the root canal occurs when weight is taken on the ipsilateral lower limb. Symptoms of the spinal stenosis syndrome do not arise until the development of this instability. To relieve the symptoms, the nerve root must be freely mobilised and decompressed by full lateral decompression, with partial or total facetectomy if necessary, by enucleation of the intervertebral disc and by removal of the posterolateral portions of the annuli fibrosi.
当骨性椎管先天性或发育性狭窄时，尤其是在其侧隐窝处（轴向断层扫描可显示此处狭窄），可使发出的神经根及其血供面临进一步受到微小压迫因素影响的风险，此时脊髓狭窄综合征便成为一种潜在危害。当腰椎间盘退变导致旋转和侧方不稳定时，在同侧下肢负重时，纤维环会向后外侧膨出至根管内。脊髓狭窄综合征的症状直到这种不稳定情况出现才会产生。为缓解症状，必须通过完全侧方减压使神经根得到充分的游离和减压，必要时进行部分或全椎板切除术，摘除椎间盘，并切除纤维环的后外侧部分。
