BACKGROUND A bipolar fractional radiofrequency (RF) device was developed to generate cutaneous thermal injuries using a temperature-controlled microneedle electrode array. OBJECTIVE Evaluate safety and efficacy of a novel subcutaneous microneedle RF for treatment of posterolateral thigh cellulite. METHODS The study design was an institutional review board-approved multicenter clinical trial after a per-protocol analysis. Fifty subjects with Nurnberger–Muller Grade II or III cellulite were enrolled at 4 treatment centers and received 1 subcutaneous microneedle RF treatment (67°C/4-second duration). Efficacy was evaluated by blinded grading by 3 dermatologists using randomized, standardized photographs and investigator grading at baseline, 1-, 3-, and 6-month follow-up. As per the Food and Drug Administration, treatment success was defined by ≥1-point improvement on dimple number or severity of undulation irregularities scales by at least 2 of 3 blinded physicians. Study subjects' self-assessments and satisfaction questionnaires and procedural pain levels and adverse events were monitored. RESULTS Blinded physician evaluations revealed a procedural success rate of 93% at 6-month follow-up. Procedural pain level was 3.74 ± 1.96 on a 10-point scale. There were no adverse events. Seventy-five percent of subjects were satisfied with the results at 6-month follow-up. CONCLUSION The results indicate that subcutaneous microneedle RF treatment is safe and effective for long-term treatment of Type II and III cellulite in a single session.
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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
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