Methods 19 cases with lumbar instability were treated by posterior interlaminar fenestration, interbody bone graft, and facet joint arthrodesis with translaminar screw fixation.

• 方法对19例退行性腰椎不稳患者采用后路椎板开窗减压,椎间植骨融合,经椎板关节突螺钉固定。