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

1.将累节段上关节突内皮质隆起与增生骨赘除,扩大狭窄的。

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

2.探讨保留腰椎上关节突狭窄扩大的手术方法与疗效。