We're discussing butt augmentation and the question is: "Do you perform silicon buttock augmentation using a silicon implant or fat grafting, which is also commonly known as 'the Brazilian butt-lift'". So, the safest way to perform a buttock augmentation is by taking a patient's own fat and injecting it into the buttock after processing it and washing it and putting it into syringes.
The alternative to that is, some surgeons will use implants made of some sort of material, often silicon, and make an incision and place these implants in the buttock. The problem with silicon implants in this location is, they tend to have a high risk of having complications. So, these implants can get infected and more commonly these implants can migrate or turn or move to different locations where we don't want them. So I do not perform silicon buttock augmentation because there's a high risk of complications.
There's a relatively low risk of complications when you perform fat grafting. Therefore, the best way to perform a buttock augmentation is by using a patient's own fat.