Distal radioulnar joint

Cause, clinical and ultrasound findings

• Reasons for the injection include inflammatory arthritis and osteoarthritis.

• Functionally limiting pain and swelling may be present. Ulnar-sided wrist pain can be referred from this joint.

• Findings may include hypoechoic fluid and tissue (synovial proliferation) with or without neovascularity bulging out of the joint.