펀치 상향술을 이용한 레이저 치료에 반응이 크지 않은 위축성 흉터의 치료 및 3차원 Image Analysis를 통한 효과 평가

Background: Various treatments exist for addressing volume loss in atrophic scars. Although laser therapy has gained traction in treating atrophic scars, it is associated with side effects, such as post-inflammatory hyperpigmentation or erythema. Additionally, not all types of atrophic scars respond optimally to laser therapy, even after multiple sessions. Objective: This study aimed to evaluate the efficacy and safety of punch elevation for atrophic scars that yielded unsatisfactory outcomes after repeated laser treatment sessions. Methods: Seven patients with atrophic scars on their facial area underwent punch elevation, concurrently supplemented by fractional CO₂ laser application to the scar margins. Improvement in volume restoration of atrophic scars was assessed via investigator evaluation and 3-dimensional (3D) image analysis. Results: After 1 month, median volume (interquartile range) of depression improved from 4.39 mm³ (2.23 ~ 9.90 mm³) to 1.97 mm³ (1.46~7.50 mm³), indicating a statistically significant difference post-punch elevation (p=0.018). No serious adverse events were reported during follow-up. Conclusion: The efficacy of the punch elevation was objectively evaluated. Punch elevation is a safe and effective therapeutic avenue for atrophic scars that exhibit resistance to laser or alternative interventions.