IntroductionThe dermal matrix appeared in the late 1990s and became an important tool in burn treatment. Following its success, new matrices soon emerged and were employed to treat burn contracture, but few studies have compared the different types available. This study evaluated two different dermal regeneration matrices comprised of one (Matriderm) or two layers (Integra) according to the Vancouver and the Patient and Observer Scar Assessment (POSAS) evaluation scales with regard to treatment of burn scar contracture. MethodsIn this prospective, case-control study, 24 patients with impaired mobility secondary to burns were divided into two groups and treated with dual or single layer matrices. Data were collected for intraoperative and postoperative complications, percentage take for matrix and graft areas, Vancouver scar scale score, POSAS score for skin quality assessment, area of matrix take, and skin graft take, and degree of mobility. Results and conclusionBoth matrices produced significant improvement according to the Vancouver and POSAS assessments over 12 months, but the dual layer matrix yielded better results than the single layer matrix in terms of retraction of the grafted area at 12 months, functional improvement, and skin quality as measured by the Vancouver and POSAS scales. According to statistical analysis, with p<0.05.
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