The main causes of spinal stenosis are congenital developmental lumbar spinal stenosis, degenerative changes in the lumbar spine, and narrowing of the spinal canal caused by trauma.
1. Congenital developmental lumbar spinal stenosis: it is mainly caused by the poor development of vertebral joints during the growth process, resulting in the narrowing of the spinal canal itself or the nerve root canal, which leads to a series of clinical symptoms caused by the irritation and compression of the nerves, but it only accounts for a small portion of the patients with lumbar spinal stenosis.
2. Degenerative changes caused by spinal stenosis: including hypertrophy and laxity of the ligamentum flavum, degenerative hyperplasia and hypertrophy of the small joints and the posterior border of the vertebral body, protrusion and prolapse of the intervertebral discs and other pathological anatomical changes, clinically classified as a central stenosis of the spinal canal, peripheral lateral saphenous fossa stenosis, neural radicular stenosis, as well as lumbar vertebral spondylolisthesis.
3 Trauma-induced spinal stenosis: such as fracture or hematoma compression will appear nerve compression symptoms, manifested as intermittent claudication; when the stenosis is serious, it will produce cauda equina syndrome, manifested as abnormal sensation in the perineal area and urinary and defecation disorders.
Spinal stenosis needs to go to the hospital as soon as possible, timely treatment.