骨肿瘤约占恶性肿瘤的1％，一般恶性程度较高，早期即可出现血行转移，预后较差。此类肿瘤通常对各种抗肿瘤药物敏感性较差。单一药物疗效欠佳。近年来，随着对肿瘤生物学行为认识的不断深入，手术水平的提高，以及放疗技术的改进和一些新的化疗药物的问世等，特别是手术前、后 Bone neoplasms account for about 1% of malignant tumors. Generally, the degree of malignancy is high. Hematogenous metastasis can occur early and the prognosis is poor. Such tumors are generally less sensitive to various anti-neoplastic drugs. A single drug has poor efficacy. In recent years, with the deepening of the understanding of the biological behavior of tumors, the improvement of the level of surgery, the improvement of radiotherapy techniques, and the advent of new chemotherapy drugs, especially before and after surgery.