Objective To investigate the effect of infiltration anesthesia within vertebral cancellous bone on relieving bone pain during vertebroplasty.Methods Totally 162 cases of vertebral osteoporotic fractures were randomly divided into conventional local anesthesia group(n=73)and vertebral infiltration anesthesia group(n=89).The analgesia effects were evaluated before operation,during puncture,during injecting bone cement and 1 day after operation by means of visual analogue score(VAS)in two groups.The safety of ...