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Joint x-ray
Definition
This test is an x-ray of a knee, shoulder, hip, wrist, ankle, or other joint.
Alternative Names
X-ray - joint; Arthrography; Arthrogram
How the test is performed
The test is done in a hospital radiology department or in the health care provider's office. The x-ray technologist will help you position the joint to be x-rayed on the table. Once in place, pictures are taken. The joint may be repositioned for different views.
How to prepare for the test
Inform the health care provider if you are pregnant. Remove all jewelry.
How the test will feel
The x-ray is not uncomfortable, except possibly from positioning the area being x-rayed.
Why the test is performed
The x-ray is used to detect fractures, tumors, or degenerative conditions of the joint.
Normal Values
What abnormal results mean
The x-ray may reveal arthritis, fractures, bone tumors, degenerative bone conditions, and osteomyelitis (inflammation of the bone caused by an infection).
The test may also be performed to investigate the following conditions:
- Acute gouty arthritis (gout)
- Adult still's disease
- Caplan syndrome
- Chondromalacia patellae
- Chronic gouty arthritis
- Congenital dislocation of the hip
- Fungal arthritis
- Non-gonococcal (septic) bacterial arthritis
- Osteoarthritis
- Pseudogout
- Psoriatic arthritis
- Reiter syndrome
- Rheumatoid arthritis
- Runner's knee
- Tuberculous arthritis
What the risks are
There is low radiation exposure. X-rays are monitored and regulated to provide the smallest amount of radiation exposure needed to produce the image. Most experts feel that the risk is low compared with the benefits. Pregnant women and children are more sensitive to the risks of the x-ray.
Special considerations
References
Renner JB. Conventional radiography in musculoskeletal imaging. Radiol Clin North Am. 2009 May;47(3):357-72.
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