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Combined Intra-operative platelet-rich plasma with corticosteroid injection was administered around the surgical wound. Each patient had 10 ml of blood collected into a RegenKit A-PRP tube. The blood-filled tube was then placed into a RegenLab PRP centrifuge and spun for approximately 5 minutes to obtain platelet-rich plasma (PRP), yielding around 5 ml of injectable PRP. Once prepared, the PRP was stored in the collection tube and used within 4 hours from the time of blood draw to the time of injection. After the keloid excision and wound closure were completed, the PRP was aseptically aspirated from the tube using a sterile needle and injected into the intradermal layer along the wound edges using a 30G needle. The injection was performed in a sterile manner, with a dosage of 0.5 ml of PRP per 1 centimeter of wound length. For corticosteroid administration, triamcinolone acetonide (40 mg/ml) was used. The medication was injected into the intradermal layer using a 30G needle along the

Intra-operative corticosteroid injection alone was administered around the surgical wound using triamcinolone acetonide (40 mg/ml). The injection was performed into the intradermal layer using a 30G needle, immediately after keloid excision and wound closure. The medication was injected along the wound edges following the suture line, at a dosage of 0.1 ml per 1 centimeter of wound length.