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

方法用盐析法对34个正常黄韧中的Ⅰ和Ⅱ胶原含量进测定,并用SDS-PAGE法进胶原的定。

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

采用单纯开窗,黄韧切除手术,治疗退形性腰椎管狭窄症36例。