Application of maple leaf-shaped flap combined with negative pressure wound therapy in the perianal circular skin...

We aimed to explore the efficacy of maple leaf-shaped flap in the repair of perianal circular skin defect. This study is a retrospective review of patients with perianal circular skin defect after skin tumour resection and repaired with maple leaf-shaped flap. Patients included in this study were admitted in our department between January 2010 and January 2023. A standardized data collection template was used to collect related variables. The design and surgical procedures of maple leaf-shaped flap are carefully described in this study. Negative pressure wound therapy (NPWT) was applied to assist wound healing postoperatively. Twenty-seven patients were included in this study. The average wound size after tumour resection measured 4 × 5 cm²-10 × 10 cm². The circular skin defect was repaired by maple leaf-shaped flap, and NPWT was used after surgery. Twenty-five patients achieved primary wound healing and flaps were well-survived. Slight infection occurred in two patients, and both were cured after dressing change. During the follow-up period of 6-24 months, no tumour recurrence occurred. The perianal morphology can be well-restored by maple leaf-shaped flap, and the defecation control function of anus was not impaired. The application of maple leaf-shaped flap and NPWT is a promising way in the repair of perianal circular skin defect with little complication and satisfying outcomes.