Scaphotrapeziotrapezoidal arthritis

Last revised by Henry Knipe on 14 Sep 2022

Scaphotrapeziotrapezoidal (STT) or triscaphe joint arthritis is common, occurring on ~9% (range 2-16%) of wrist radiographs 3,4. It is typically degenerative (i.e. osteoarthritis) affecting the triscaphe articulation and presents with radial-sided wrist or base of thumb pain in patients over 50 years 1,2,4. It can be associated with DISI alignment 3.

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Case 1
    Drag here to reorder.
  • Case 2
    Drag here to reorder.
  • Case 3: with distal radial fracture and 1st CMC arthritis
    Drag here to reorder.
  • Case 4: isolated
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.