Discussion : Ablative lasers seem to achieve the highest degree of efficacy , albeit this is associated with significant pain and downtime , and the risk for long-term pigmentary changes .
Non-ablative fractional photothermolysis ( FP ) has a much safer profile but can not achieve as good cosmetic results .
The efficacies of fractional radiofrequency microneedling and radiofrequency are slightly inferior to that of FP but offer an even safer adverse profile .
Conclusion : Multiple devices have been used with varying levels of efficacy and very different safety profiles .
There is an overall lack of high- quality evidence about the effects of different interventions .
Introduction : Acne scarring is a very common problem , which can be extensive , and may lead to significant psychosocial morbidity .
Multiple types of treatments are used to ameliorate atrophic scars with varying degrees of success .
This paper provides an overview of the various energy-based modalities that are commonly employed against acne scarring .
Objectives and methods : A comprehensive literature search of papers published since 2008 was performed in order to determine the efficacy and adverse reactions of commonly used energy-based treatments against post-acne scarring .
Treatment of Acne Scars of Skin Types II to V by Sublative Fractional Bipolar Radiofrequency and Bipolar Radiofrequency Combined with Diode Laser.
OBJECTIVE This study evaluated the safety and efficacy of sublative fractional bipolar radiofrequency and bipolar radio frequency combined with diode laser for the treatment of both  superficial and deep acne scars in patients with skin types II to V. DESIGN Prospect i ve , single-center study . Subjects received up to five treatments with sublative fractional bipolar radiofrequency and bipolar radiofrequency combined with diode laser . Treatments were directed to at least two facial ( forehead , perioral , cheeks ) and /or neck areas with acne scars at four-week intervals . Treatment parameters on each subject were based on skin type and on skin responses to test spots on the target area just before treatment . SETTING Physician office . PARTICIPANTS Subjects ( n=20 , aged 40.7±10.5 years [ mean ± SD ] , skin types II-V ) with acne scars and without acne lesions enrolled in this prospect i ve study . MEASUREMENTS RESULTS were evaluated just before each treatment and at four and 12 weeks after the final treatment using the Goodman Scar Scale , a quantitative method of evaluating scars that attempts to reduce grading subjectivity , as well as by patient satisfaction . RESULTS Acne scars improved significantly one month after three treatments and improvement persisted for at least 12 weeks after the fifth treatment . Improvement was not affected by skin type . Adverse effects were limited to transient erythema and edema . CONCLUSION The combination of diode laser and bipolar radiofrequency energy device in addition to fractionated sublative radiofrequency is a safe and statistically significantly effective combined modality for the treatment of both superficial and deep acne scars in patients with skin types II to V with minimal downtime and no significant side effects
Discussion : Ablative lasers seem to achieve the highest degree of efficacy , albeit this is associated with significant pain and downtime , and the risk for long-term pigmentary changes .
Non-ablative fractional photothermolysis ( FP ) has a much safer profile but can not achieve as good cosmetic results .
The efficacies of fractional radiofrequency microneedling and radiofrequency are slightly inferior to that of FP but offer an even safer adverse profile .
Conclusion : Multiple devices have been used with varying levels of efficacy and very different safety profiles .
There is an overall lack of high- quality evidence about the effects of different interventions .
Introduction : Acne scarring is a very common problem , which can be extensive , and may lead to significant psychosocial morbidity .
Multiple types of treatments are used to ameliorate atrophic scars with varying degrees of success .
This paper provides an overview of the various energy-based modalities that are commonly employed against acne scarring .
Objectives and methods : A comprehensive literature search of papers published since 2008 was performed in order to determine the efficacy and adverse reactions of commonly used energy-based treatments against post-acne scarring .