Loose Body in a Joint
A loose body is a free-floating piece of bone, cartilage, or a
foreign object in a joint. The knee is the most common site for loose
Causes of loose bodies include:
- Degenerative joint disease (osteoarthritis).
- A chip
- A torn piece of the
- An object, such as a dislodged
piece of hardware from a previous surgery or a foreign object from a
- Inflammation or decreased blood supply
(avascular necrosis) to the bone and cartilage, which may cause the bone to
separate from the cartilage (osteochondritis dissecans).
Symptoms of a loose body in the knee joint may include:
- Locking of the knee that comes and
- Pain and swelling of the knee that comes and
- Being able to feel the loose body by touching the
- Ongoing (chronic) stiffness.
Your doctor may order a test, such as an X-ray, ultrasound, CT scan,
or MRI, to help find a loose body. Surgery to remove the loose body or repair
the kneecap may be needed if a loose body is causing symptoms.
|By: ||Healthwise Staff ||Last Revised: August 5, 2011|
|Medical Review: ||William H. Blahd, Jr., MD, FACEP - Emergency Medicine|
David Messenger, MD
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