[Long-term results of total trapezium-metacarpal joint arthroplasty using the de la Caffinière cemented prosthesis]

We report a series of 13 arthroplasties using De la Caffinière cemented trapezium-metacarpal prostheses which were implanted to treat unstable and painful TM arthrosis in our department. 10 patients were women and 1 was a man. Mean age, 65 years (range 50 to 75 years). 2 patients received bilateral implants. The mean follow-up was 8 years. The mean mobility of the operated side compared with the opposite thumb were: abduction 38 degrees/39 degrees, flexion 7 degrees/9 degrees y extension 29 degrees/31 degrees. The radiography showed in one case a radiolucent area around the trapezium component of the prosthesis with no clinical repercussion. The subjective results were good in 9 cases and acceptable in 2. The good long-term results of this procedure make it a valid alternative for the treatment of painful TMC arthrosis which limits normal function.