[Mid-term results of scapho-trapezio-trapezoid arthrodesis in aseptic semilunar bone necrosis stage IIIa/b].

The mid-term results of 20 cases of Kienböck's disease treated with scaphotrapezio-trapezoid arthrodesis with an average follow-up period of 25 months between 1993 and 1997 are presented. Clinical results were good with regard to pain, grip strength and range of motion; the results with regard to the DASH questionnaire were very good. It can be concluded from this study that STT arthrodesis is a useful procedure for the treatment of Kienböck's disease in stage III.