A prospective study of 1129 patients with 1358 digital fractures of the hand was carried out between March 1984 and March 1994; of these, 924 fulfilled the criteria for inclusion. Functionally stable fractures with acceptable alignment were managed with immediate active mobilization. Unstable fractures, or fractures with unacceptable alignment, were openly reduced and fixed internally so that active mobilization could begin immediately after operation. The function results using various systems of evaluation were excellent or good in over 90 per cent of the fractured thumbs, and excellent or good in 58.7 per cent to 76.5 per cent of the fingers. Patients who did not require surgery did much better than those in the operated group. Comminuted, open and multiple fractures proved to be of poor prognostic value. However, rigid fixation was statistically significant in influencing the outcome.