Objecties. To compare the efficacy and safety of balloon kyphoplasty and ertebroplasty for the treatment of ertebral compression fractures, and to examine the prognostic factors that predict outcome.

• 目的：比较球囊扩张椎体后凸成形术和椎体成形术治疗椎体压缩性骨折的疗效和安全性，寻找能预测结果的先兆因素。