骨骼的良性肿瘤或肿瘤样病变经搔刮后遗留下的骨性空腔需用替代物填充。有以骨水泥填充的,但骨水泥不能发育成骨骼,并有老化的趋势。自然以自体骨填充最为理想。但自体骨取骨量不多,特别是儿童病例,供骨量更少,还要考虑到取骨量过多引起的功能障碍。很久就已经采用了异体松质骨填塞骨性空腔,但存在着一些问题。第一,供骨来源问题;第二,供骨的保存问题,第三,异体骨植入体内后出现局部反应问题。本院在本世纪五十年代便已建立了骨库。可以分成三个阶段。第一阶段为将松质骨以硫柳汞酊浸泡后—20℃冷藏,在手术时取出现制现用。第二阶段将松 The benign tumor or tumor-like lesions of the bone that are left after the scraping of the bony cavity are filled with substitutes. There is bone cement, but bone cement does not develop into bone and there is a tendency to age. It is ideal for natural bone filling. However, there are not many bones taken from autologous bones, especially in children, and the amount of bone supply is less. We must also consider the dysfunction caused by taking too much bone. For a long time, allograft bone has been used to fill bone cavities, but there are some problems. First, the source of bone supply; second, the preservation of the bone, and third, the local reaction after allograft implantation into the body. In the fifties of this century, the Court established a bone bank. It can be divided into three stages. In the first stage, the cancellous bone was immersed in thimerosal to 20°C and refrigerated at the time of surgery. The second phase will be loose