去矿物质骨是经盐酸脱矿物质、γ射线灭菌、冻干贮存的尸体骨。动物实验表明其有诱导骨生成的作用。加之易造形、耐受力强及价廉,近年许多学者将其用于头面部缺损的修复和重建。本文通过对53例(75例次)去矿物质骨用于头面部整复的患者的远期效果的观察,评价其吸收程度及影响因素。75例次手术,采用去矿物质肋骨片、骨屑或骨粉为移植物,经 Demineralized bone is a demineralised, γ-ray sterilized, lyophilized, stored body bone. Animal experiments show that it has the role of inducing bone formation. In addition, easy to shape, strong tolerance and low cost, many scholars in recent years will use it for the repair and reconstruction of head and face defects. In this paper, 53 cases (75 times) demineralized bone used in facial and face reconstruction of the long-term effect of observation, evaluate the degree of absorption and influencing factors. 75 cases of subtotal surgery, the use of demineralized rib fragments, bone debris or bone meal for the graft, after