Objective To compare effect of chemonucleolysis of collagenase injected intraprotrusion(disc protrusion) with intradisk (disc centre ) at the affected disc guided by computer scan(CT) on lumbar disc herniation. Method 156 patients were randomly divided into two groups.Repeat CT shows guided 1200 U collagenase intraprotrusion or intradisk injection of the affected disc via extradural or intradual way for the patients.3 month follow up was performed to evaluate the therapeutic effect.Result The observation indicated that the patients showed no any seriously side effect.The effective rate was 86
作者：虞乐华；吴南顺；张宽平
来源：中国临床康复 2002 年 6卷 4期
