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Ankylosing Spondylitis - Topic Overview
SYMPTOMS & TREATMENTS
What is ankylosing spondylitis?
Ankylosing
spondylitis (say "ang-kill-LOH-sing spawn-duh-LY-tus") is a long-term form of
arthritis that most often occurs in the
spine 
. It can cause pain and stiffness in the low
back, middle back, buttocks, and neck, and sometimes in other areas such as the
hips, chest wall, or heels. It can also cause swelling and limited motion in
these areas. This disease is more common in men than in women.
There is no cure, but treatment can control symptoms and prevent the disease from getting worse in most cases. Most people are able to do their normal daily activities and can still work.
This disease can cause several other problems. You may have redness and pain in the colored part of your eye (iritis). You also may have trouble breathing as your upper body begins to curve and your chest wall begins to stiffen.
What causes ankylosing spondylitis?
The cause is unknown, but it may run in families. Most people with ankylosing spondylitis are born with a certain gene, HLA-B27. But having this gene does not mean that you will get the disease.
Research suggests that bacterial infections and your environment may have roles in causing this disease.
What are the symptoms?
This disease causes mild to severe pain in the low back and buttocks that is often worse in early morning. Some people have more pain in other areas, such as the hips or heels. The pain usually gets better slowly as you move around and are active. Ankylosing spondylitis most often begins anywhere from the teenage years through the 30s.
It gets worse slowly over time as swelling of the ligaments,
tendons, and joints of the spine causes the bones of the spine to
join, or fuse , together. This leads to less range of movement in the neck and low
back.
As the spine fuses and stiffens, the neck and low back lose
their normal curve. The middle back curves outward. This can keep you in a
bent-forward position and may make it hard for you to
walk.
As the small joints that connect the ribs and collarbone to the breastbone get inflamed, you may find that it’s harder for you to breathe. Other parts of the body, such as your eyes and your other joints, may also swell. Sometimes the disease affects the lungs, the heart valves, the digestive tract, and the major blood vessel called the aorta.
How is ankylosing spondylitis diagnosed?
The early signs of this disease—dull pain in the low back and buttocks—are common. Your doctor will ask about your symptoms and if they have become worse over time. Your doctor will also ask if you have a family history of this joint disease or others like it.
Your doctor may do several tests if he or she thinks that you have ankylosing spondylitis. You may have an X-ray, a test for the HLA-B27 gene, or an MRI of the sacroiliac joints.
The clearest sign of the disease is a change in the sacroiliac joints at the base of the low back. This change can take up to a few years to show up on an X-ray. So some doctors may wait until you have had symptoms for a long time before they will say for sure that you have the disease.
How is it treated?
Treatment includes exercise and physical therapy. These will help reduce stiffness so that you can stand up straighter and move around better. Your doctor will also give you medicine for pain and swelling.
Because people with ankylosing spondylitis are at a higher risk for spinal cord injury, it’s important that you wear a seat belt every time you drive or ride in a car.
You will need to get regular eye exams to check for inflammation in your eye, called iritis. You may use a device such as a cane to help you walk and to help reduce stress on your joints.
Surgery for the spine is rarely needed. You may want to think about hip or knee replacements if you have severe arthritis in those joints.
There is no cure for this disease. But early diagnosis and treatment can help relieve pain and stiffness and allow you to keep doing your daily activities for as long as possible.
Frequently Asked Questions
Learning about ankylosing spondylitis: | |
Being diagnosed: | |
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Living with ankylosing spondylitis: |
| By: | Healthwise Staff | Last Revised: May 11, 2011 |
| Medical Review: | Anne C. Poinier, MD - Internal Medicine Stanford M. Shoor, MD - Rheumatology | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.
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