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Spinal Stenosis Learning Center

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Spinal Stenosis

What Is Spinal Stenosis?

The spine is a column of bones called “vertebrae” that provide stability and support for the upper body. It enables us to turn and twist. Spinal nerves run through openings in the vertebrae and conduct signals from the brain to rest of the body. The surrounding bone and tissues protect these nerves. If they’re damaged or impaired in any way, it can affect functions like walking, balance, and sensation.

Spinal stenosis is a condition in which the spinal column narrows and starts compressing the spinal cord. This process is typically gradual. If the narrowing is minimal, no symptoms will occur. Too much narrowing can compress the nerves and cause problems.

Stenosis can occur anywhere along the spine. How much of the spine is affected can vary.

Spinal stenosis is also called:

  • pseudo-claudication
  • central spinal stenosis
  • foraminal spinal stenosis

Symptoms of Spinal Stenosis

Symptoms typically progress over time, as nerves become more compressed. You might experience:

  • leg or arm weakness
  • lower back pain while standing or walking
  • numbness in your legs or buttocks
  • balance problems

Sitting in a chair usually helps relieve these symptoms. However, they’ll return with periods of standing or walking.

What Are the Causes of Spinal Stenosis?

The most common cause of spinal stenosis is aging. Degenerative processes occur throughout the body as it ages. Tissues in the spine may start to thicken, and bones may get bigger, compressing the nerves. Conditions like osteoarthritis and rheumatoid arthritis may also contribute to spinal stenosis. The inflammation they cause can put pressure on the cord.

Other conditions that can cause stenosis include:

  • spine defects present at birth
  • a naturally narrow spinal cord
  • spinal curvature, or scoliosis
  • Paget’s disease of the bone, which causes abnormal bone destruction and regrowth
  • bone tumors
  • achondroplasia, which is a type of dwarfism

How Is Spinal Stenosis Diagnosed?

If you have the symptoms of spinal stenosis, your doctor will start by taking a medical history, performing a physical exam, and observing your movements. Tests can be used to confirm a suspected diagnosis. They may include:

  • spinal imaging, using X-ray, MRI, or CT scan
  • electromyelogram to check the health of spinal nerves
  • bone scan to look for damage or growths in the spine

Treatment Options for Spinal Stenosis

First-Line Treatments

Pharmaceutical treatment is typically tried first. The goal is to relieve your pain. Cortisone injections into the spinal column can reduce swelling. Nonsteroidal anti-inflammatory drugs (NSAIDs) can also help with pain.

Physical therapy may also be an option. It can strengthen muscles and gently stretch your body.

Surgery

Surgery may be needed for severe pain. It can relieve pressure permanently. Several types of surgery are used to treat spinal stenosis.

  • Laminectomy is the most common type of surgery. Part of the vertebrae is removed to provide more room for the nerves.
  • Foraminotomy is a surgery that’s done to widen the part of the vertebrae where the nerves exit.
  • Spinal fusion is typically performed in more severe cases. Bone grafts or metal implants are used to attach the affected bones of the spine together.

Coping with Spinal Stenosis

Options other than surgery may be able to ease the pain of spinal stenosis. These include:

  • heat packs or ice
  • acupuncture
  • massage

Back pain can have a serious impact on your quality of life. Cognitive behavioral therapy may be able to help you manage your pain by providing education and coping mechanisms.

Long-Term Outlook for People with Spinal Stenosis

Many people with spinal stenosis lead full lives and remain active. However, they may need to make modifications to their physical activity. Many people have residual pain after treatment or surgery.

Content licensed from:

Written by: Jaime Herndon
Published on Aug 20, 2012
Medically reviewed on Dec 18, 2015 by [Ljava.lang.Object;@4b2a4d9e

This feature is for informational purposes only and should not be used to replace the care and information received from your health care provider. Please consult a health care professional with any health concerns you may have.
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