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  • Title: Repair of oronasal fistulae with acellular dermal matrices.
    Author: Kirschner RE, Cabiling DS, Slemp AE, Siddiqi F, LaRossa DD, Losee JE.
    Journal: Plast Reconstr Surg; 2006 Nov; 118(6):1431-1440. PubMed ID: 17051115.
    Abstract:
    BACKGROUND: The authors examined the efficacy of a novel technique for oronasal fistula repair using acellular dermal matrix grafts. In part I, an animal model was used to demonstrate proof-of-concept; in part II, the method was applied to oronasal fistula repair in the clinical setting. METHODS: In part I, oronasal fistulas were created in Yorkshire piglets (n = 6) and allowed to mature for 2 weeks. In three animals, acellular dermal grafts were interposed between the oral and nasal mucosa traversing the palatal fistulas. Mucosal edges were not closed. Three weeks postoperatively, the palates were examined histologically. The fistulas of control piglets (n = 3) remained unrepaired and were examined 5 weeks after their creation. In part II, acellular dermal grafts were interposed between the oral and nasal mucosa in nine consecutive patients undergoing oronasal fistula repair. Complete closure of the oral and nasal mucosa was achieved in two patients. In the remainder, nasal closure was affected by interposition of the dermal matrices beneath a complete oral mucosal closure. RESULTS: All animals that underwent fistula repair demonstrated successful healing with revascularization, complete reepithelialization, and cellular infiltration into the grafts. All control fistulas remained patent. Successful fistula closure was observed in all patients. In two patients, early oral mucosal dehiscence and exposure of the dermal graft was followed by complete healing. CONCLUSIONS: This study demonstrates successful closure of palatal fistulas in an animal model and in cleft palate patients using interposition grafts of acellular dermis. This novel method offers promise as a simple and effective technique for tension-free closure of oronasal fistulas.
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