Autologous fat grafting has unpredictable success rates, depends on individual. In general, 75 to 80 percent of the fat injected during any fat transfer procedure will survive. Normally it will take 2-3 injections to see desired result.
根据个体的情况，自体脂肪的存活率一般在30-70%不等；但是为了避免一次过量填充，引起的脂肪堆积、结节等问题，一般需要2-3次填充，才能达到比较理想的效果。 自体脂肪丰眉弓手术疼吗？创伤大吗？自体脂肪丰眉弓可采用局部麻醉或睡眠麻醉，手术无需开刀，仅有针眼大的创口，一般无需缝合，愈合后基本无明显人工痕迹。

It’s surgery, of course, though very minor. The incisions are small. The canula that harvests the fat and needle that re-injects it are also both tiny.
创伤大吗？自体脂肪丰眉弓可采用局部麻醉或睡眠麻醉，手术无需开刀，仅有针眼大的创口，一般无需缝合，愈合后基本无明显人工痕迹。

1. The individual’s age, diet, and physical differences. 2. Early blood vessel formation and adequate blood supply after fat transplantation were essential for improving the fat graft survival. The injection technique to make sure injected fat cells would survive. 3. The harvested and processed fat grafts must remain viable before implantation.
1.个体自身的年龄、饮食习惯、身体差异；移植部位血供是否丰富、空间是否足够，注射应均匀，采用多点、多隧道的注射方法，避免将脂肪集中注射在某一部位；2.移植脂肪有没有被破坏：吸脂的负压越大、脂肪在体外存放时间越长，温度越高，对脂肪的损伤也就越大；因此，无论采用哪种吸脂方法，其负压不宜超过0.5MPa，吸脂管、注射针不宜过细；恰当的术后护理也很重要，如术后两周内，避免挤压、按揉，注意营养补充等。

Liposuction techniques is done through tiny incisions that leave almost no scarring, with doctor’s good skill there won’t be any uneven bumps on skin.
抽取的脂肪量很少，基本不会出现凹凸不平的症状。

Cleaning and preparing the fat then putting it into a deep freeze. Down to -20 degrees Celsius, it has the potential to be stored for a lifetime. However, frozen fat doesn’t hold up as well as fresh fat. Unless you think you’ll be fat-free in the future, or else it’s always sufficient to extract fresh fat.
虽然有研究标明，抽取的脂肪在-20°C的冰箱内，保存一个月后，其脂肪细胞结构的完整性无明显改变，因此认为可以一次抽取足够的脂肪，冷藏下来以后再补打；但是，冷冻后的脂肪其活力一定会比新鲜的脂肪差，因此除非患者脂肪供区特别有限，或者患者特别不能接受再次吸脂，尽量还是进行新鲜的脂肪移植。