Evaluation of the Clinical Efficacy of Fractional Radiofrequency Microneedle Treatment in Acne Scars and Large Facial Pores

Abstract

Clinical improvement from FRM treatment appeared to be related to dermal matrix regeneration. FRM treatment may be effective in improving acne scars and facial pores.

Consensus Recommendations on the Use of a Fractional Radiofrequency Microneedle and Its Applications in Dermatologic Laser Surgery

“…[1][2][3]19 The bipolar RF system has its limitations on treating deeper skin area, but it provides more controlled distribution of energy. [1][2][3]20 …”

“…5,20 Fractional thermal injury of dermal collagen induces a vigorous wound healing process leading to inflammatory cascade and stimulates new collagen, elastin, and hyaluronic acid formation, eventually resulting in dermal remodeling. 5,20 Furthermore, skin needling with microneedles has been reported to stimulate migration and proliferation of keratinocytes and fibroblasts by inducing the release of several growth factors. 5,20,21 And, untreated areas which are located between treated areas serve as a reservoir of cells that promote and accelerate wound healing.…”

“…5,20 Furthermore, skin needling with microneedles has been reported to stimulate migration and proliferation of keratinocytes and fibroblasts by inducing the release of several growth factors. 5,20,21 And, untreated areas which are located between treated areas serve as a reservoir of cells that promote and accelerate wound healing. 20,21 Histologic and ultra-structural changes Lim et al histologically evaluated pig skin up to 10 weeks after FRM treatment, using energies from 1.25 to 6.25 J/cm 2 .…”

“…5,20,21 And, untreated areas which are located between treated areas serve as a reservoir of cells that promote and accelerate wound healing. 20,21 Histologic and ultra-structural changes Lim et al histologically evaluated pig skin up to 10 weeks after FRM treatment, using energies from 1.25 to 6.25 J/cm 2 . 5 Examination post-treatment biopsy revealed that thermally coagulated zone was localized in the reticular dermis without damaging the epidermis.…”

“…A study of the FRM system on thirty patients with acne scar and large facial pores revealed that the grade of acne scars, investigator global assessment of large pores, skin surface roughness, dermal density, and microscopic and composite image improved after two sessions of treatment. 20 Consensus panel members agreed that FRM system could be an ideal treatment option for acne scar as well as other surgical and traumatic scar. Suggested proper parameters by panel are shown on Table 3.…”