Fat transfer, injection or grafting procedures all are based on the same fundamental treatment moving fat from an area which you have a lot (excess) and inject the fat into areas requiring more density or volume such as the face or hands.
Generally, this is a popular safe, enduring, well-tolerated procedure. The results of this treatment are natural-looking.
Fat is harvested from one part of your body, washed and purified, and then carefully reinjected with specially designed needles into the areas that need augmentation. It may be necessary to repeat the fat grafting procedure several times to achieve the desired result. Fat grafting can be explained as a three-stage process:
(1) harvesting (2) purification and transfer and (3) placement.
Harvesting: A site is selected for fat removal and the area is injected with a local anaesthetic. The surgeon then makes a small incision in the area for fat removal and insert a cannula connected to a syringe to carefully extract fat (liposuction).
Purification and transfer: Once enough fat is obtained from the donor area, the surgeon processes it to prepare the fat cells for transfer to small syringes that will be used for fat injection. Purification may require the use of a centrifuge to spin the fat or a filtration process to remove impurities.
Placement: The area designated to receive the graft will then be prepared. The surgeon will insert a needle or cannula into the incision point of the site being augmented. The injection needle is usually passed in and out of the areas to be augmented multiple times, each time the needle or cannula is withdrawn, a line of fatty tissue parcels is carefully deposited in the natural tissue area. This process is repeated until the desired correction has been achieved, creating a grid of grafted fat. Surgeons recommend massaging the grafted areas to create a satisfactory contour, others prefer to rely on the placement technique to create contouring. The surgeon may also place a dressing or bandage over the grafted area.