Fig. 2

a Preoperative radiographs of the right hand showing severe trapezio-metacarpal osteoarthritis in a 57-year-old woman, complicated by pain and disability of the thumb. b At follow-up, 9 years after surgery, X-rays did not show proximal migration of the thumb metacarpal or signs of impingement on the scaphoid. c, d Clinical evaluation showed excellent abduction and joint opposition of the thumb. Metacarpophalangeal hyperextension was evident, as is often observed as a consequence of this surgical procedure. In spite of the hyperextension of the thumb, the patient reported no pain or significant limitations in her daily activities