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  • Title: [Clinical application of modified skin soft tissue expansion in early repair of devastating wound on the head due to electrical burn].
    Author: Lei J, Hou C, Duan P, Hao Z, Zhai Y, Meng Y.
    Journal: Zhonghua Shao Shang Za Zhi; 2015 Dec; 31(6):406-9. PubMed ID: 26837246.
    Abstract:
    OBJECTIVE: To observe the clinical effect of modified skin soft tissue expansion in repair of devastating wound on the head due to electrical burn in the early stage. METHODS: Twenty-one patients with partial scalp soft tissue defect accompanying skull exposure and necrosis in different degree due to high-voltage electrical burn were hospitalized from April 2009 to October 2014, with wound area ranging from 7 cm × 5 cm to 15 cm × 13 cm. The wounds were debrided as early as possible, and necrotic skulls were kept in situ and covered with porcine ADM and silver-containing dressing. Bacterial culture of exudate from the residual soft tissue was carried out 3 days after hospitalization. Pertinent antibiotics were applied topically to control infection, and autologous split-thickness skin grafts were transplanted. Two to three weeks after injury when the skin grafts survived, modified skin soft tissue expansion was carried out. The crossbow-form incision was made on the normal scalp 2 cm away from the edge of transplanted skin; a capsule cavity was formed by ladder-like dissection. An expander was inserted with the injection port laying outside. The expander was stretched by inflation and deflation. The incisions were sutured layer by layer. The time of continuing negative pressure drainage in the interval of expansion was extended. Volume of water reaching 2 to 3 times of the capacity of expander was injected for excessive expanding. The expanded skin flap was rotated to repair the wound after expansion was ended. RESULTS: Within 1 week after debridement, 4 kinds of bacteria were detected in the bacterial culture of wound exudate, including 4 cases of Staphylococcus aureus, 5 cases of Staphylococcus epidermidis, 5 cases of Pseudomonas aeruginosa, and 3 cases of Acinetobacter baumannii. A total of 26 expanders were imbedded. No infection or incision dehiscence in the expanding area or cracking and leakage of expander was observed during expanding period. Two to three months after injury, expanded skin flap transplantation was completed, and the wound was repaired. Raw wounds were seen in 4 expanded skin flaps after transfer, and they healed after dressing change. Punctiform ulceration at the seams of 2 flaps was observed one month after the operation, which healed after removing few pieces of sequestra by themselves. The other expanded skin flaps survived well. During the postoperative follow-up for 3 to 12 months, satisfactory appearance and hair growth was observed in the operation area. CONCLUSIONS: Repair of the devastating wound on the head due to electrical burn with modified skin soft tissue expansion could achieve the result of early wound covering and cosmetic repair without alopecia in one time.
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