Osteoarthritis is characterized by joint space narrowing and osteophyte formation, with other possible manifestations including subchondral cystic change and/or sclerosis when severe. This commonly affects the 1st carpometacarpal joint and triscaphe region of the wrist.
Osteoarthritic changes are commonly seen in regions of prior trauma or persistent instability.
Chronic insufficiency of the scapholunate ligament (either post traumatic or from mineral deposition/CPPD) can result in scapholunate advanced collapse (SLAC). *Incidentally noted type II lunate.
FINDINGS: Mild widening of the scapholunate interval with slight proximal migration of the capitate. Mild radiocarpal joint degenerative changes with chondrocalcinosis of the triangular fibrocartilage complex.
IMPRESSION:
- Scapholunate ligament disruption with featurs of SLAC wrist (scapholunate ligament advanced collapse)
- Features of CPPD Arthropathy
Non-union of the proximal pole of the scaphoid may result in scaphoid non-union advanced collapse (SNAC).
FINDINGS: Displaced, ununited fracture of the scaphoid waist with sclerotic margins. Proximal migration of the capitate. Remote healed fracture of the distal radius.