Twenty-nine patients with high-grade nonmetastatic osteogenic sarcoma of the extremities were treated with adjuvant chemotherapy following definitive surgery. Chemotherapy consisted of systemic intravenous Adriamycin and cisplatin in a sequential fashion given for six courses. Nineteen out of 29 patients are alive and continuously disease free over a follow-up period ranging from 9+ to 30+ months. The relapse-free survival was 72%, and overall survival for the entire group was 69%. Median survival is not reached yet. Six out of 29 patients relapsed, of which 1 patient is alive for 6+ months after relapse. Three patients died of chemotherapy toxicity. The results were superior to historical controls treated with surgery alone. The need for more aggressive treatment approaches is discussed.