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A chronic wound is a wound that is delayed in one of the wound-healing stages and cannot progress any further. A chronic wound leaves the patient at risk of infection and hospitalization. In these case series, 16 patients affected by venous ulcers underwent Hyalomatrix PA grafting for reconstructive surgery. Hyalomatrix PA is a bilayered, sterile, flexible, and conformable three-dimensional matrix made of fibers of HYAFF, a benzyl ester of hyaluronic acid, and a semipermeable silicone membrane. Hyalomatrix PA acts as a substitutive and regenerative permanent matrix able to replace the dermis providing a three-dimensional matrix for cellular invasion and capillary growth. The silicon layer controls water vapor loss avoiding an excessive loss of fluids and acts as a semipermeable barrier to the external agents. In the presented cases, the average area grafted per procedure was 153 cm2. The length of followup ranged from 0.5 to 1 year. The final results were considered to be good in 12 cases, fair in 3 cases, and poor in one case. This study suggests that the combination of wound bed preparation with application of the hyaluronic regenerative matrix can be a valid approach for treatment of partial thickness ulcers.

Interaction between a Regenerative Matrix and Wound Bed in Nonhealing Ulcers: Results with 16 Cases