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J Korean Soc Plast Reconstr Surg. 2011 Jan;38(1):89-92. Korean. Case Report.
Lim TG , Hur GY , Chang H , Lee DL .
Department of Plastic Surgery, Hanil General Hospital, Seoul, Korea.
Department of Plastic and Reconstructive Surgery, Seoul National University College of Medicine, Seoul, Korea.

PURPOSE: Electrical burn of scalp is uncommon. Much more, chronically exposed dura in unstable burn scar is quite exceptional. Hence, we report a case of chronically exposed dura following electrical burn. METHODS: A 63-year-old man presented with an about 40 years history of an ulcerative lesion arising from electrical burn scar with 'squeeze like sensation' around wound. Wound was about 6 x 8cm. Area in the center was 3 x 3 cm nonviable dura without sequestrum. Tangential excision with an intraoperative neurosurgical consultation and transposition flap under general anesthesia was done. Intraoperative biopsy was done. The wound was diagnosed as chronic osteomyelitis, not Marjolin ulcer. Flap was taken successfully. But after 5 days, infectious discharge had been appeared during 2 weeks, despite irrigation and drainage. As flap was re-evaluated, we could see remnant necrotic dura. After that, latissimus dorsi muscle free flap with meshed split thickness skin graft was transferred without excision of necrotic dura. RESULTS: Flap was taken successfully. Follow-up at 10 weeks has been uneventful, with good and stable coverage of the wound. CONCLUSION: It is true that complete excision of devitalized tissue with sagittal sinus obliteration is prerequisite to flap taken. But necrotic dura was tangentially excised instead of total dura excision, because, posterior two-thirds of the sagittal sinus was involved underneath. Muscle is rich in blood vessels and decrease the recipient-site bacterial count effectively. In this case, muscle flap with skin graft without total dura excision is an alternative treatment.

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