Objective To observe the effect of zoledronic acid combined with radiotherapy in the treatment of spinal metastases.Methods A total of 124 patients with spinal metastases were randomly divided into three groups.The treatment were carried on in treatment group ﹙56 patients received zoledronic acid combined with radiotherapy﹚ and control group ﹙40 patients received only radiotherapy and 27 patients received only zoledronic acid﹚ respectively,and pain release and activity improving were evaluated at the end of...