How/why do people lose transferred fat after 3 months?

Question

By this time a blood supply should be developed, why would people continue to lose transferred fat after this?

Daniel Barrett, MD · Answer

Dear Dunkindo,
fat viability depends a lot of surgeon technique. The fat has to be placed back into the buttocks as soon as possible so that it has a greater chance of survival. It has to be placed carefully so that not too much fat is placed in only one area.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

Steve Laverson, MD, FACS · Answer

Excellent question, however the precise biomolecular, vascular, metabolic, and anatomic basis for successful fat grafting is unknown. Many techniques for fat transfer have been successful, but none are 100% successful. Similar approaches to fat transfer are successful in some quantities, distributions, and anatomic areas but fail when any of these variables changes, Every patient and circumstance is different.

Failure of one procedure does not necessarily predict failure of the same procedure repeated.

Failure of one procedure does not necessarily predict failure of the same procedure repeated.

Ronald J. Edelson, MD · Answer

You ask a very good question. Fat transfer is unpredictable and in many cases the fat will not get enough blood supply and the fat will resorb. This is despite what you may have heard. It simply doesn’t work very well. Because of this I can’t justify doing it

Connie Hiers, MD, FACS · Answer

Fat can actually be lost up to a year with stable weight, but most is lost in the first 6 months. In some areas, especially with scar tissue present or very dense fibrous fat, the fat grafts have difficulty surviving. Weight loss will shrink fat as well.

Mats Hagstrom, MD (license on probation) · Answer

The growth of new blood vessels in graft the tissue happens over the first 3 to 7 days.
This is in reality, the most important time and any tissue that doesn’t have a blood supply by a week after the procedure is not going to survive.
It takes the body a significant amount of time to break down the dead tissue and this is what happens over the next three months after surgery.
Best,
Mats Hagstrom MD

How/why do people lose transferred fat after 3 months?

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