Clinical Study on Autologous Split-Thickness Skin Graft Combined with Photodynamic Therapy for the Treatment of Keloid in the Female Pubic Region

Keloid, marked by abnormal fibroblast activity and excessive collagen buildup, presents a therapeutic challenge due to their high recurrence rates. The pubic region, a sensitive anatomical area, is rarely discussed in keloid treatment literature. Our study demonstrates that autologous split-thickness skin grafting combined with topical photodynamic therapy(PDT) effectively prevents the recurrence of keloids in pubic region by radically eliminating inflammation and inhibiting fibroblast proliferation. This study retrospectively analyzed 32 keloid patients treated with autologous split-thickness skin grafting and photodynamic therapy (surgery+PDT group) and compared them to a control group of 29 patients who underwent surgery alone (surgery only group). The improvement rate was evaluated at baseline (month 0) and at a 12-month follow-up (month 12) using the modified Vancouver Scar Scale (mVSS) and the Patient and Observer Scar Assessment Scale (POSAS) RESULTS: The study involved 61 patients. Both treatment groups exhibited significant enhancements in mVSS and POSAS scores; however, the combination therapy group showed a statistically significant improvement in POSAS scores at 12 months compared to the surgery-only group. Patients receiving both surgery and PDT showed a significantly higher improvement rate compared to those undergoing surgery alone.