Trapeziometacarpal osteoarthritis: surgical technique and results of "stabilized resection-arthroplasty".

Abstract

Since 1973, 212 hands of 179 patients with disabling trapeziometacarpal osteoarthritis were treated with resection-arthroplasty stabilized by capsuloplasty and intermetacarpal ligament construction; 159 patients (180 hands) could be followed up (average, 7.8 years; range, 1 to 17.3 years). Pain relief was excellent in 89%, good in 10%, and fair in 1%. Patients were "delighted" (78%), "satisfied" (18%), "indifferent" (2%), or "disappointed" (2%) with their functional results. Palmar abduction improved 25%. The tip of the thumb reached the fifth metacarpophalangeal joint in 97% of the hands. Grip strength improved 29%; key pinch, 19%; pulp pinch, 24%. First metacarpal was stable in 94% of the cases. Scaphometacarpal space averaged 5.5 mm. There were three complete failures (2%); complications were mild and infrequent. Because of its good, predictable results, "stabilized resection-arthroplasty" is our preferred surgical treatment for osteoarthritic trapeziometacarpal joints.