STT (Scapho-Trapezium-Trapezoid) ArthritisWollstein, Ronit MD*; Carlson, Lois OTR/L CHT†Techniques in Orthopaedics: March 2009 - Volume 24 - Issue 1 - pp 19-22 doi: 10.1097/BTO.0b013e3181a07ffe Articles Abstract Author Information Summary: Arthritis of the STT (Scapho-trapezium-trapezoid) joint is the second most common arthritis in the wrist. Reported in 10% to 15% of wrist radiographs, its true incidence is unknown. Most of the cases are probably asymptomatic and are not diagnosed. The anatomy and biomechanics of the joint are discussed, as well as diagnosis and treatment options for symptomatic STT joint arthritis. From the *Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania; †The Hand Center, Hartford, Connecticut. Reprints: Ronit Wollstein, MD, Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Pittsburgh Medical Center 3550 Terrace St., Pittsburgh, PA 15261. E-mail: firstname.lastname@example.org © 2009 Lippincott Williams & Wilkins, Inc.