From January 1960 to January 1974, 180 cases of chronic osteomyelitis were treated by the same surgeon in the infection unit of Notre-Dame Hospital in Montreal. Of these cases, 71.4% were treated by saucerization, followed by secondary closure or by skin grafting. In ten cases (5.4%) the limb was amputated. However, in 39 cases two similar techniques of open excision and grafting were used. The infection was mostly traumatic in origin and a staphylococcus was cultured in 75% of cases. The organism was sensitive to cloxacillin and dicloxacillin in the majority of cases. Since 50% of these 39 cases were referred for amputation, the results were much betts. Two late recurrences were recently seen and treated, one 17 years and one 4 years after the initial treatment.