1.Smple fenestration was adopted to resect the ligamenta flava to treat retro-Lumbar spinal stenosis for36 cases.

1.采用单纯开窗,黄韧带切除手术,治疗退形性腰椎症36例。

2.Methods 34 cases of normal human ligamenta flava were determined by salt precipitation , the collagen samples were analyzed by SDS - PAGE.

2.法用法对34个正常黄韧带标本中的Ⅰ型和Ⅱ型胶原含量进行测定,并用SDS-PAGE法进行胶原的分型确定。