Spinal stenosis is the result of your spinal canal narrowing and is caused by many factors including excessive bone growth — a thickening of your tissue such as ligaments, cartilage and herniated discs. This narrowing will aggravate the cord itself or the roots where the nerves leave the spinal cord. Generally speaking, this degeneration of the tissue is part of our aging process and tends to occur the most in people over 50 years old.
The two most common types of spinal stenosis are cervical stenosis and lumbar stenosis. With cervical stenosis, a narrowing of the space occurs in the spinal portion of the neck. Lumbar stenosis narrows the space of your spine in the lower back region and is the most common spinal stenosis condition people experience.