[Adjuvant chemotherapy of malignant bone tumors].

The interdisciplinary approach in the combined modality treatment of non-metastasized osteogenic sarcoma follows now well-established guidelines: (1) diagnostic biopsy; (2) pretherapeutic cytostatic polychemotherapy (cyclic administration of adriamycin, high-dose methotrexate or cis-platinum, BCD = bleomycin + cyclophosphamide + dactinomycin); (3) limb-saving oncological radical operation with histological evaluation of the effectiveness of the preoperative chemotherapy; (4) continuation of the preoperative chemotherapy as postoperative adjuvant chemotherapy. This interdisciplinary approach in the treatment of localized osteogenic sarcoma has improved the 5-year survival rate from 20% to 80%.