Abstract
We examined 21 diabetic patients with foot ulcer and gangrene, including 3 patients with gas gangrene, between 1994 and 1996. These pateints were well treated and prevented an amputation of the diseased extremities. The risk factors for severe ulcers and gangrenes were listed as follows over 60 years old, 10 years duaration of diabetes mellitus, over 200 mg/dl of FBS and over 10% of HbA1C.