Test Overview
An arthrogram is a test using
X-ray and a
contrast material (such as a dye, water,
air, or a combination of these) to take pictures of a joint. The
contrast material is put into your affected
joint
, which allows your doctor to see the soft tissue
structures of your joint, such as
tendons,
ligaments, muscles,
cartilage, and your joint capsule. These structures
are not seen on a plain X-ray without contrast material. A special
type of X-ray, called
fluoroscopy, may be used to take pictures of the
joint.
An arthrogram is used to check a joint to find out what is causing
your symptoms or problem with your joint. An arthrogram may be more useful than
a regular X-ray because it shows the surface of soft tissues lining the joint
as well as the joint bones. A regular X-ray only shows the bones of
the joint. This test can be done on your hip, knee, ankle, shoulder,
elbow, wrist, or jaw (temporomandibular joint).
Other tests, such as
magnetic resonance imaging (MRI) and
computed tomography (CT), give different information
about a joint. They may be used with an arthrogram or when an arthrogram does
not give a clear picture of the joint.