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Osteomyelitis

Definition

Osteomyelitis is a bone infection caused by bacteria or other germs.

Causes

Bone infection is most often caused by bacteria. But it can also be caused by fungi or other germs. When a person has osteomyelitis:

In children, the long bones of the arms or legs are most often involved. In adults, the feet, spine bones (vertebrae), and hips (pelvis) are most commonly affected.

Risk factors are:

People who have had their spleen removed are also at high risk of osteomyelitis.

Symptoms

Exams and Tests

A physical exam shows bone tenderness and possibly swelling and redness.

Tests may include:

Treatment

The goal of treatment is to get rid of the infection and reduce damage to the bone and surrounding tissues.

Antibiotics are given to destroy the bacteria causing the infection:

Surgery may be needed to remove dead bone tissue if you have an infection that does not go away:

Infection that occurs after joint replacement may need surgery to remove the replaced joint and infected tissue around the area. A new prosthesis may be implanted in the same operation. More often, doctors wait until the infection has gone away.

If you have diabetes, it will need to be well controlled. If there are problems with blood supply to the infected area, such as the foot, surgery to improve blood flow may be needed to get rid of the infection.

Outlook (Prognosis)

With treatment, the outcome for acute osteomyelitis is usually good.

Outlook is worse for those with long-term (chronic) osteomyelitis. Symptoms may come and go for years, even with surgery. Amputation may be needed, especially in persons with diabetes or poor blood circulation.

Outlook for persons with an infection of the prosthesis depends, in part, on:

When to Contact a Medical Professional

Call your health care provider if:

References

Matteson EL, Osmon DR. Infections of bursae, joints, and bones. In: Goldman L, Schafer AI, eds. Goldman’s Cecil Medicine. 24th ed. Philadelphia, Pa: Elsevier Saunders; 2011:chap 280.

Dabov GD. Osteomyelitis. In: Canale ST, Beaty JH, eds. Campbell’s Operative Orthopaedics. Philadelphia, Pa: Elsevier Mosby; 2012:chap 21.



Review Date: 5/19/2013
Reviewed By: Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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