Acellular Allodermis in Burn Surgery

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Abstract
We grafted 10 sites on 6 children with limited (< 25%) areas of body surface available for donor harvest with an acellular allogenic dermis and a thin autograft. Matched control sites were grafted with autograft alone. Study site autografts (0.0074 +/- 0.0007 in, median 0.006 in, range 0.006 to 0.012 in) were thinner than control site autografts (0.0102 +/- 0.0008 in, median 0.012 in, range 0.006 to 0.013 in), with a P value of .015. Endopoints were initial engraftment (in percent) as judged by a blinded experienced observer and Vancouver scar scores. The 6 children (3 girls and 3 boys) had an average age of 5.2 +/- 0.9 years (range 2.8 to 10 years) and an average burn size of 68.7% +/- 6.7% total body surface area (range 47% to 85% total body surface area). The 10 study and control sites were treated with 10 separate procedures; 9 of the procedures were reconstructive and 1 was performed for the excision of an acute burn. Successful initial epithelialization was noted at 7 days postburn for 83% +/- 3.4% (range 60% to 95%) at the cryopreserved acellular human dermis sites and 83.3% +/- 4.3% (range 60% to 98%) at the control sites (not significant, P = .96). At a mean follow-up interval of 43.7 +/- 3.6 weeks (median 52, range 26 to 52 weeks), the differences between the study and control sites in the total mean (pigmentation, vascularity, pliability, and height) of the patients' Vancouver scar scores were not different.

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