Ulnar impaction syndrome
Progressive bilateral wrist pain and decrease range of movements.
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Bilateral positive ulnar variance associated with sclerosis of opposing articulation between the lunate and the distal ulna.
Osteopenic texture of examined bones. Bilateral 1st carpometacarpal osteoarthritic changes.
Soft tissue swelling around the wrist.
Ulnar impaction syndrome is a degenerative wrist condition caused by the ulnar head impacting upon the ulnar-sided carpus with the injury to the triangular fibrocartilage complex (TFCC).
The majority of cases occur in association with positive ulnar variance or increased dorsal tilt of the distal radius.