People's understanding of lumbar spinal stenosis has become more and more comprehensive and reasonable, however, there are still many controversies about the concepts of "central lumbar canal" and "lateral lumbar spinal canal", and there is no unified standard at present. In this paper, we redefine and differentiate the two concepts. We believe that some kinds of central canal stenosis caused by bilateral recess stenosis can be completely solved by bilateral percutaneous endoscopic transforaminal discectomy. At the same time, the concept of "lumbar lateral recess" is ambiguous. We redefine it as "lateral lumbar spinal canal" and propose "West China Hospital classification" to guide surgical decision-making, which has been widely recognized and applied.
虽然人们对腰椎管狭窄症的认识和理解不断完善、合理，但对“腰椎中央管”和“腰椎侧方椎管”的概念仍然存在众多争议，目前仍无统一标准。该文对“中央管狭窄”和“腰椎管狭窄症”两个概念进行重新定义和区分，并且认为某些双侧侧隐窝狭窄导致的中央管狭窄症完全可以通过双侧椎间孔入路经皮内镜技术解决。同时，腰椎“侧隐窝”的概念模糊不清，现重新将其定义为“腰椎侧方椎管”，并提出“华西分型”指导手术决策，已得到了业界广泛认可和应用。.
Keywords: Lumbar central canal stenosis; lumbar lateral spinal stenosis; percutaneous endoscopic lumbar discectomy.