Resect the interior cotex and osteophys of superior processus,enlarge the stenosis of lateral recessus.

将受累节段上关节突内侧皮质隆起与赘除,窄的隐窝。

To study the method and result of enlargement of lumbar lateral recessus stenosis with reserve of superior processus.

探讨保留腰椎上关节突侧隐窝窄的手术方法与疗效。