Between 1986 and 1997, 28 forearm open fractures were treated at the Tamana Central Hospital. The fracture type was classified according to Gustilo et al.: 2 type I, 14 type II, 6 type III-A, 3 type III-B, and 3 type III-C fractures. All fractures were treated surgically within 6 hours. Immediate internal fixation was performed for 17 fractures, and 8 fractures were treated with delayed fixation. The rate of infection in this series was 7.1%. All fractures showed bony union eventually. One type II patient and 1 type III-C had delayed union, and bone graft and replating were added for these patients. The fracture of the type I and type II cases, healed in an average of 90 days, and that of type III, in an average of 162 days. Patients were clinically evaluated according to a rating system based on fracture union and pronation-supination of the forearm (Grace and Eversmann). Ninety-two per cent (11) of the type II fractures showed excellent or good results and 1 poor. Sixty per cent (6) of the type III fractures showed excellent or good results and 5 fractures acceptable or poor. Patients, except type III-C fractures, had good functional results.