Development of new bone augmentation method using self-activated mesh device made by memory alloy

应用记忆合金(SMA)制作的自激活网状装置，研制了一种新的骨强化方法。我们用日本大白兔进行了动物实验。该装置被插入额部骨膜下。我们用显微CT和组织学方法评价骨形成。新生骨的面积和所占面积的定量数据显示，实验组的新骨体积明显高于对照组。使用SMA技术进行骨膜扩张术的自激活装置可避免供区并发症，是一种可行的骨扩张术。

New bone augmentation method using self activated mesh device made by memory alloy (SMA) was developed. We performed an animal experiment using Japanese white rabbits. The device was inserted under the periosteum at the forehead. We evaluated bone formation using micro-CT and histological method. The quantitative data by the area and the occupation of newly formed bone indicated that the experimental group had a higher volume of new bone than the control group. The use of self-activated devices for the periosteal expansion using SMA technique may make it possible to avoid donor site morbidity, and seems to be a viable method of bone augmentation.