什么是腰椎管狭窄（What is lumbar spinal stenosis）.doc

什么是腰椎管狭窄（What is lumbar spinal stenosis） Lumbar spinal stenosis refers to the abnormality of the spinal canal caused by primary or secondary factors, narrowing of the spinal canal, and the occurrence of low back pain. Lumbar spinal stenosis, which is divided into several classes in? According to the international classification, they are classified into the following categories: (1) the degeneration caused by spinal stenosis: due to the impact of spinal suffersenilethe changes and strain, and the thickness of lamina, vertebral osteophyte formation, the spinal canal volume generated on the narrow and narrow, facet hypertrophy and hypertrophy of ligamentum flavum. (2) stenosis caused by complex factors: narrowing of the acquired malformation at the same time, narrowing of the vertebral canal caused by the protrusion of the intervertebral disc, or narrowing of the intervertebral disc and mild stenosis of the spinal canal. (3) (degenerative spondylolisthesis) and osteolysis stenosis caused by disease. (4) iatrogenic stenosis: there are postoperative hyperplasia of bone and the hyperplasia, adhesion and so on. (5) traumatic stricture, such as compression fracture and fracture dislocation. (6) other: Paget disease (Pagets disease) is a deformity of the spine, spinal canal can be reduced; fluoride poisoning can also cause hyperplasia deformity caused by stenosis. The etiology of lumbar spinal stenosis caused by what? From the point of view of modern medicine, the common causes of lumbar spinal stenosis are as follows: (1) developmental lumbar spinal stenosis: this stenosis is caused by congenital abnormalities. (2) degenerative lumbar spinal stenosis: mainly caused by degenerative diseases of the spine. (3) spondylolisthesis of lumbar spinal stenosis due to lumbar spondylolysis and spondylolisthesis or degeneration occurs when the shift from top to bottom before and after the spinal canal, further narrowing, and spondylolisthesis, can promote the degeneration of spinal ste