Spinal Stenosis

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Spinal Stenosis

Abstract

Spinal Stenosis is a term commonly used to describe a narrowing of the spinal canal. This problem is much more common in people over the age of 60. However, it can occur in younger people who have abnormally small spine canals as a type of birth defect. The problem usually causes back pain and leg pain that comes and goes with activities such as walking. The purpose of this information is to help you understand: the anatomy of the spine related to spinal stenosis the signs and symptoms of lumbar spinal stenosis, how the condition is diagnosed, and the treatments available for the condition.

Spinal Stenosis

Spinal Anatomy

The anatomy of the spine has three major regions: the cervical, the thoracic, and the lumbar. Your spine is a long column of bones (aka vertebra) that stretches from the base of your skull to your tailbone. The vertebrae supports and stabilizes your upper back, while at the same time allowing you to move freely. The vertebrae also protects your spinal cord. The spinal cord is a bundle of nerves and nerve cells that extend the length of your spine. The cord housed inside a channel (aka spinal canal) within the vertebra. 31 pairs of nerves branch off from the spinal cord, providing communication between your brain and the rest of your body.

What is Spinal Stenosis

As defined by the Laser Spine Institute, Spinal Stenosis is the narrowing of the spinal canal by a piece of bone or disc material. This can cause weakness in your extremities. This narrowing results in pressure on the spinal cord and/or nerves. Spinal stenosis can occur in a variety of ways in your spine. Most cases of spinal stenosis occurs in the lower back (lumbar spine) and will affect the sciatic nerve. Most often, spinal stenosis results from degenerative changes in the spine caused by aging. Tumor injuries and other diseases can also lead to the narrowing in the spinal canal.

Symptomology

Lumbar spinal stenosis occurs more commonly in males. This may be a combination of congenitally narrow canal linked with occupational risk. Although symptomatic lumbar spinal stenosis is usually a disease of the middle-aged and the elderly, younger patients may also be affected. Typically, the earliest complaint is back pain, which is relatively nonspecific and may result in delayed diagnosis. Spinal stenosis often starts gradually and worsens over time. Signs of spinal stenosis will not likely develop until the narrowed areas compress the spinal cord or the base of the spinal nerves (nerve roots).

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