Clinical Applications of Punch-Based Techniques in Dermatologic Surgery.

Abstract

Punch-based techniques are widely used minimally invasive surgical procedures in dermatologic surgery. Beyond diagnostic use, punch-based procedures are increasingly applied therapeutically across multiple conditions. This review summarizes the current therapeutic applications of punch-based techniques and discusses the strengths and limitations of existing evidence. Current literature supports the use of follicular unit extraction (FUE) for androgenetic alopecia, with generally predictable and reproducible outcomes. In contrast, applications of punch-based techniques for scar improvement, vitiligo repigmentation, chronic wound repair, pilonidal sinus management, and keloid volume reduction are more heterogeneous, and their efficacy often depends on disease stability, combination treatment strategies, and operator experience. Punch elevation, as an adjunctive technique, may improve outcomes in selected atrophic acne scars. In benign cutaneous and subcutaneous lesions, punch excision offers favorable cosmetic advantages due to its limited incision length. Across different indications, most evidence derives from small observational studies or case series, and long-term controlled data remain limited. Overall, punch-based techniques provide precise and tissue-preserving therapeutic options in dermatologic surgery; however, their clinical value varies substantially depending on the specific indications. Further standardized and prospective studies are needed to clarify their long-term efficacy and optimal positioning within treatment algorithms.