Fat Cells Don’t Return to Treated or Untreated Areas After Liposuction – New Study Refutes Previous Findings Claiming Fat Returns, Redistributes to Other Areas of the Body

ARLINGTON HEIGHTS, Ill. (July 31, 2012)

Since it made its debut in North America 30 years ago, liposuction has promised to permanently remove excess fat from stubborn areas, barring extreme weight gain. New research reveals liposuction lives up to its promise. According to a study in the August issue of Plastic and Reconstructive Surgery, the official medical journal of the American Society of Plastic Surgeons (ASPS), fat cells neither return to treated areas nor get redistributed to untreated areas of the body after liposuction.

The new study refutes a report published last year in Obesity, which concluded that fat returns to untreated areas of the body, especially the abdomen, shoulders, and arms within one year after liposuction. In a follow-up story, the New York Times featured a caricature of a distorted woman, looking trim in the lower body, but like the Incredible Hulk in the upper body. This disturbing image was widely publicized on the Internet.

The new study by ASPS Member Surgeon Eric Swanson, MD, Leawood, Kansas, evaluated 301 patients having liposuction, either alone or in combination with
abdominoplasty, using standardized photographs and computer-assisted measurements of body dimensions obtained preoperatively and at least three months after surgery. The study revealed no evidence of fat regrowth in treated areas of the arms, abdomen, or lower body. Additionally, upper body dimensions were unchanged after surgery, indicating no fat redistribution. Average reductions in hip measurements remained significant in patients followed one year or more after both liposuction and combined liposuction/abdominoplasty procedures. The average hip reduction was significant even among a subgroup of 34 patients who gained five pounds or more after surgery.

“Previous studies have evaluated small numbers of patients and used imprecise measuring techniques, limiting their power to reliably detect changes,” said Dr.
Swanson. “Our study included a sufficient number of patients and used precise measurements, making the conclusions highly reliable. Patients can be reassured
that their improvements will last and they need not worry about putting weight back on disproportionately.” Dr. Swanson adds, “Of course, liposuction does not change your ability to gain or lose weight. Its value is in permanently reducing the number of fat cells in problem areas. For any given weight you will be in the future, your proportions will be better after liposuction, barring extremes in weight gain.”

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