Methods 48 cases with degenerative lumbar instability received segmental pedicle screw fixation,laminectomy decompression,and autologous micromorselized bone graft.

• 方法48例退行性腰椎不稳患者,行腰椎椎弓根钉棒内固定,全椎板或半椎板减压,颗粒状骨植骨治疗。