Having taught liposuction for years at the University of Southern California Keck School of Medicine, I know traditional tumescent liposuction to be a wonderful treatment, with an unparalleled safety record.
Of all the available methods for fat removal, it is the only one I would consider using on myself, and it is the only one I offer to my patients.
Recently, there have been many companies promoting techniques such as Smart Lipo and Cool Lipo, which aim to modify the traditional tumescent liposuction technique by adding lasers, etc. to the procedure.
Unfortunately, there is no clear evidence that any of these procedures offers any advantage to traditional tumescent liposuction. The lasers can, however, increase risk to the patient, since the laser can injure tissue, burn skin, cause a scar, etc.
Fat cells that are removed With liposuction generally remain gone. If a person gains weight, however, the other fat cells in the body will get larger. Liposuction is best for patients whose weight is stable.