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骨折不连接、延迟连接和假关节治疗的首选植骨材料为自体松质骨。若缺损甚大需多次植骨,可在原松质骨供区重复取骨。但迄今尚无量化或时间数据供临床医师参考,以确定再次取骨的功效和最适间隔时间。本研究旨在确定曾取松质骨之供骨区能否成为再次供骨的可靠来源。取12头雄犬(>2岁),其骺板均已闭合。掀起右侧髂嵴而不切断蒂部相连之骨膜,挖出靠近髂后上棘处内外皮质之间长3cm、深1.2～2.5cm的松质骨,其边缘系一钢丝作标
The most preferred graft material for nonunion, delayed connection, and pseudarthrosis was autologous cancellous bone. If the defect is much needed multiple bone graft, repeat the bone in the original cancellous bone donor area. But so far there is no quantitative or time data for clinicians to determine the efficacy and optimal time to take the bone again. The purpose of this study was to determine if the donor bone that had taken cancellous bone could become a reliable source of bone for another. Take 12 male dogs (> 2 years old), the epiphyseal plate has been closed. Set off the right iliac crest without cutting off the periosteum connected to the pedicle and digging the cancellous bone with a length of 3cm and a depth of 1.2-2.5cm near the posterior superior iliac spine at the cortex,