According to the different radiotherapeutic fractionation regimen, they were divided into three groups: Group I, Group II and Group III.

• 结果恶性肿瘤骨转移放射治疗的总有效率为94。5%25,3组间无统计学差别。从止痛起效时间,骨痛缓解程度等参数分析,大分割组(III组)明显优于其他两组。