The aim of this study is to investigate the effect of intervertebral tamped bone particles transplantation and screw internal fixation system on treating degenerative lumbar instability syndrome.

• 摘要试验拟观察椎间骨粒夯实植骨加钉棒系统置入固定对腰椎不稳定性疾病椎体稳定性的影响。