Abstract
White scars are defined in this study as mature hypopigmented surgical or traumatic scars whose color is much lighter than surrounding skin, to the extent that they appear white. These scars are often obvious and very difficult to treat or mask. This 3-year retrospective study reports the outcomes from 38 recipients of a new microdermal grafting surgery we developed, which introduces melanocytes into the white scar lesion to regenerate skin color. The study shares 18 years of experience with this procedure, describes the surgical steps, offers videos of the procedures, and presents 4 cases. Between September 2013 and December 2016, 38 patients (30 females; 8 males) underwent microdermal grafting for color regeneration of white scars in our plastic surgery clinic. Most patients, 78.9%, received 1 treatment, 15.8% received 2 treatments, and 5.3% received 3 treatments. Three lay judges were asked to assess percentage pigmentation recovery by comparing photographic images of patients' preoperative and postoperative scars. Patients were also asked to assess, via a questionnaire, satisfaction and percentage improvement 1 year after surgical treatment. Lay judges found an average of 49% improvement after 1 session, 75% after 2 sessions, and 90% after 3 sessions. In total, 71.1% of the patients completed the questionnaire 1 year after the surgery. Average subjective improvement was 55% after 1 session, 88% after 2 sessions, and 95% after 3 sessions. The patient satisfaction rate was high. Microdermal grafting provides adequate treatment of white scars by regenerating melanocytes, although more than 1 session treatment may be needed.
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