骨肉瘤在原发急性骨肿瘤中发病率最高,恶性程度也最高,是骨科最具代表性的肿瘤〔1〕。近年来,由于大剂量全身化疗的运用〔2〕,使骨肉瘤的5年存活率提高到80%。但全身化疗的药物剂量的掌握和其毒性作用对人体的影响,是不能与介入治疗相比的。材料和方法　12例骨肉瘤患者,肱骨7例 Osteosarcoma has the highest incidence of primary acute bone tumors and the highest degree of malignancy. It is the most representative tumor in orthopedics [1]. In recent years, due to the use of high-dose systemic chemotherapy [2], the 5-year survival rate of osteosarcoma has been increased to 80%. However, the control of the dose of systemic chemotherapy and its toxic effects on the human body cannot be compared with interventional therapy. Materials and Methods 12 cases of osteosarcoma and 7 cases of tibia