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

方法析法对34个正常黄标本中的Ⅰ型和Ⅱ型胶原含量进测定,并SDS-PAGE法进胶原的分型确定。

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

采单纯开窗,黄除手术,治疗退形性腰椎管狭窄症36例。