Objective. To evaluate the efficacy of minimal invasive surgery for acute lumbar fractures by means of balloon kyphoplasty with calcium phosphate plus segmental short posterior instrumented fusion.

• 目的：评价微创手术（磷酸钙骨水泥球囊扩张椎体后凸成形术联合短节段后路内固定融合）对急性腰椎骨折（治疗）的有效性