Treament group were received conventional therapy and alprostadil with deproteinized calf blood extractives injection, control group were received conventional therapy and mecobalamine.
治疗组在常规治疗基础上给予前列地尔和小牛血去蛋白提取物治疗，对照组在常规治疗基础上给予甲钴胺。
3
Results stain of interstitial collagen fibers was positive and mucin stain was negative in deproteinized bone, but stain of interstitial collagen fibers and mucin were all positive in fresh bone.