Tumescent and the machine used to harvest the fat are two different things. Tumescent is a fluid that is injected into the fat prior to liposuction. It contains several medications (epinephrine and lidocaine) to decrease bleeding and control pain. It is a standard surgical technique that is done in any liposuction procedure regardless of the machine used to remove the fat. Most surgeons use tumescent solution because it decreases the amount of blood that is lost during the liposuction procedure.
Universally, it is well accepted that losing too much blood damages or impairs the fat that is transferred. You want to maximize the removal of fat while at the same time minimize the bleeding and diminish the blood that is “sucked out”.
Any reputable plastic surgeon will use tumescent solution prior to liposuction. Once the fat is removed, it is processed by removing most of the tumescent solution, blood, and oil. The fat is injected in the deficient areas to recreate a harmonious buttock. Tumescence will not determine if the fat is going to disappear or not; instead, this is determined by the surgical technique, the fat processing technique, and the surgeon’s experience.