Autologous Fat Grafting in Buttock Augmentation Surgery
Autologous fat grafting has completely revolutionized the way plastic surgeons perform buttock augmentation. Instead of solid silicone implants, a growing number of doctors, including myself, prefer the use of the most natural material—i.e., the patient’s own fat.
The “idea” of autologous fat grafting in buttock augmentation may appear simple and straightforward: Collect unwanted fats from two or more donor sites through liposuction, and then inject them into the patient’s buttocks.
But the truth is, autologous fat grafting involves a complex set of procedures. First and foremost, we must only use the best and healthiest fats so that once injected they can persist long term. If not, the entire grafts will succumb to a natural process called resorption in which the surrounding tissue absorbs them.
To ensure that fat grafts can persist long term, the fats collected during liposuction must be processed—i.e., all the impurities like red blood cells and oil are discarded. Simply put, only the purest golden fat infused with stem cells is used.
Fat-derived stem cells are quite exciting; they can give rise to more cells of the same type. In fact, several studies have shown that they can promote high retention of the volume injected, lower risk of necrosis (death of tissue), and activate the creation of new connective tissue.
Simply put, the purification process prior to fat injection can make or break the result of buttock augmentation, or in layman’s term, Brazilian butt lift.
Of course, the survival rate of fat grafts also relies on patient cooperation. The general rule of thumb is to avoid pressure on the buttocks—prolonged sitting and supine sleeping position—for at least three weeks postop. The idea is to give the grafts the opportunity to settle and create their new blood vessels needed for their long-term survival.