Objective To evaluate the indications, technique, and efficacy for surgery of lumbar degenerative instability (LDI) using interbody fusion cages (Cage) combined with pedicle screw system.

• 摘要目的探讨椎体间融合器联合钉棒系统治疗退行性腰椎不稳症的手术适应证、技术要点和临床疗效。