My book on liposuction published in 1987 contains the first descriptions of the methods for obtaining the fat which will later be used as an autograft. There we outlined the different ways of harvesting the fat graft and the various injection techniques we use. As in facial cosmetic surgery, this new method of injecting fat with needles and syringes is becoming so popular that it is now has a name of its own: sharp-needle intradermal fat, or SNIF. The technique was already described in Chapter XV of our book on liposuction published in 1987.
Our current technique is divided into three stages. First, we perform liposuction in depth, with a 4mm cannula. We then perform superficial liposculpture with a 3mm cannula in the subdermal plane to allow the skin to adapt and to improve the cellulitis, and then join the different areas by detachment of subdermal remodeling to make the subcutaneous scarring uniform and to allow it to act as an internal binder, lifting the tissues due to the scar retraction.
In liposculpture, the fat is aspirated just beneath the skin using very thin cannulas, crossing the tunnels and leaving very small scars. With this technique we are able to remodel, shape and “sculpt” the fat and any excess fat can be removed. The advantage of the technique is that performing the suction in a superficial plane leaves the skin thin and detached, which allows better retraction. This remodeling is performed in highly localized areas like the hip and the inside of the thigh or the knee.
In the postoperative period, the patient wears a compressive garment and can resume normal life with minimal discomfort after two or three days.