Fractional micro-plasma radiofrequency treatment given to 95 patients with non-hypertrophic burn scar.

After the patient's scars were subjected to a mild cleanser and 70% alcohol, a topical cream of 5% lidocaine hydrochloric acid (Beijing Ziguang Medication Manufacture Corporation Ltd, Beijing, China) was applied to the entire scar surface under occlusion for 60-90 min before treatment to achieve local anesthesia. Fractional micro-plasma radiofrequency treatment (Pixel RF, Accent XL; Alma Lasers, Caesarea, Israel) was applied using a roller tip at 50-80 watts. Three or four passes were made in different directions over each affected area. A high rolling speed of roughly 5 cm/s was manually controlled. This treatment was accompanied by an air cooler (Cryo 5; Zimmer, Warsaw, IN, USA) for pain control. All patients attended three to five treatment sessions at intervals of 8-16 weeks.

The patient component of the POSAS contains six parameters that the patient scores: pain, itching, color, stiffness, thickness, relief. The physician (observer) component contains five parameters: vascularization, pigmentation, pliability, thickness, relief. Each parameter is scored from 1 to 10, with 1 indicating that the scar similar to normal skin and 10 indicating the worst situation imaginable.

Complication including edema, erythema, infection, dyschromia, hypertrophic scar formation or any other complications reported