Three types of surgical procedures can be performed for Hemifacial Atrophy, depending on the extent and severity of the condition:
Fat Grafting:
This technique is suitable for treating mild and smaller asymmetries of the face caused by Hemifacial Atrophy.
- a) Fat grafting can be done under local anesthesia or general anesthesia depending upon your choice and comfort level.
- b) In the first step, liposuction is done to harvest healthy fat from another area of the body (usually the belly, thighs, or buttocks).
- c) This fat is then purified, processed, and prepared for grafting.
- d) A fine needle and cannula are used to inject the healthy fat into those areas of the face that have signs of deformity.
- e) To account for the body’s natural reabsorption of the injected fat, overcorrection is done (more fat than required is injected).
The face is gently massaged to ensure the fat is evenly distributed, addressing your initial goals for the procedure
Fat grafting done in stages gives good and acceptable results in severe deformities of hemifacial atrophy. But the procedure has to be repeated 2 to 3 times, 3 to 6 months apart to match with the opposite face. Fat grafting is the best solution if cosmesis is the main concern with no extra scar elsewhere on the body.
Microvascular Free Flaps: In cases where the skin is too tight and shrunken for fat grafting to be effective, microvascular free tissue transfer is considered. This procedure involves harvesting a flap of tissue, usually from the back of the thigh, along with its artery and vein. The flap is then transferred to the face, reshaped, and secured in place. Blood vessels are connected to vessels at the recipient site.
Bony Corrections: Correction of bone deformities can be achieved through osteotomies (cutting and repositioning of bones). For instance, if the orbit is distorted, vertical repositioning of the orbit or placement of a bone graft on the orbital floor may be performed.