Sciatica can also be caused by pressure on the nerve due to a narrowing of the spinal canal. There are several possible conditions that lead to spinal stenosis:
Aging - With age, the body's ligaments (tough connective tissues between the bones in the spine) can thicken. Spurs (small growths) may develop on the bones and into the spinal canal. The facet joints (flat surfaces on each vertebra that form the spinal column) also may begin to thicken.
Trauma - Accidents and injuries may either dislocate the spine and the spinal canal or cause burst fractures that produce fragments of bone that penetrate the canal. Heredity-If the spinal canal is too small at birth, symptoms of spinal stenosis may show up in a relatively young person. Structural deformities of the involved vertebrae can cause narrowing of the spinal canal.
Heredity - If the spinal canal is too small at birth, symptoms of spinal stenosis may show up in a relatively young person. Structural deformities of the involved vertebrae can cause narrowing of the spinal canal.
Fluorosis - Fluorosis is an excessive level of fluoride in the body. It may result from chronic inhalation of industrial dusts or gases contaminated with fluorides, prolonged ingestion of water containing large amounts of fluorides, or accidental ingestion of fluoride-containing insecticides. The condition may lead to calcified spinal ligaments or softened bones and to degenerative conditions like spinal stenosis.
The most important thing you can do if you are certain you have spinal stenosis is to ensure that you maintain as close to normal curvature in the spine. The more your spine is pulled out of place the tighter the space gets in the spinal canal...Identifying and addressing muscle imbalances is crucial!