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.
Primary Medical Reviewer
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
How this information was developed to help you make better health decisions.