Tendon interposition arthroplasty for basal joint arthrosis. 38 thumbs followed for 4 years.

We reviewed 38 thumbs (35 patients) operated with a modified Burton procedure for basal joint arthrosis. There were 3 pintrack infections and 9 patients reported severe discomfort during the postoperative period in a plaster of Paris. After a follow-up of 4 (1-7) years, 28 patients rated the overall result as excellent, while 1 would not have consented to the operation if she had known the result in advance. Activities of daily living were markedly improved. Compared to the nonoperated hand, the key pinch was moderately reduced and grip strength was almost the same. The postoperative scaphometacarpal gap was 6 mm.