A thin skin piece{ donor skin) is taken under local anaesthesia. This is normally taken at the top of the thigh.
This donor skin is processed using an enzyme(trypsin) to separate the cells of skin and to make a skin cell suspension. This suspension is rich in melanocytes - the cells which produce the skin colour.
The area to be treated (white spot) is gently abraded, under local anaesthetic, and the skin cell mixture is applied over this abraded skin. Proper dressing is done which is removed after about 8 days.
The skin cells attach themselves and the healing and repigmentation process begins.
Post Operative:
Treated areas remain pink after removal of dressing.
Earliest pigmentation is seen within 3-6 weeks
Entire area covers up in 3 to 4 months.
Excellent cosmetic results are seen in 5-6 months.