The Combination of the Mini-Punch Technique and Photodynamic Therapy for the Treatment of Mandibular Keloids and Hypertrophic Scars

Mandibular keloids and hypertrophic scars can exert significant effects on the appearance of a patient. However, current treatments are not effective in all cases. Consequently, it is vital to identify a safe and effective treatment method.To investigate the therapeutic effect of the mini-punch technique combined with photodynamic therapy (PDT) on mandibular keloids and hypertrophic scars.Twenty patients with mandibular keloids and hypertrophic scars were enrolled, including 5 cases of keloids and 15 cases of hypertrophic scars, with a total of 40 lesions. The mini-punch technique was performed first, and then, PDT was conducted, once a week on 3 occasions in total.After 12 months of follow-up, 30 lesions had improved by more than 50%, thus achieving a good therapeutic effect. The Vancouver Scar Scale score of patients ranged between 8 and 12 points with a mean of 9.60 ± 1.09 points before surgery and between 2 and 9 points with a mean of 4.15 ± 2.05 points at 12 months after surgery. The mean Vancouver Scar Scale score after treatment was significantly lower than that before treatment (t = 11.80, p < .001).A combination of the mini-punch technique and PDT is an effective treatment for mandibular keloids and hypertrophic scars.