骨膜牵张成骨(periosteal distraction ostegogenesis,PDO)技术是近年兴起的一种新技术,有可能成为治疗颌面部缺损及畸形的一种重要手段。大量研究证明,骨膜在牵张成骨过程中具有重要的意义。目前,国内外学者在研究骨膜的成骨活性中,发现单独对骨膜进行牵引而不需骨皮质切开即能在骨膜下形成一定量的骨组织。因此,产生了PDO这一概念。PDO是 Periosteal distraction osteogenesis (PDO) is a new technique that has emerged in recent years and may become an important method for the treatment of maxillofacial defects and deformities. A large number of studies have shown that the periosteum in the process of distraction osteogenesis has an important significance. At present, domestic and foreign scholars in the study of periosteal osteogenic activity, found that the periosteum traction alone without cortical osteotomy that can form a certain amount of subperiosteal bone tissue. Therefore, the concept of PDO has arisen. PDO is