Granulating dressing for low exuding chronic wounds

A non-negative pressure system for stimulating tissue growth at a tissue site, comprising:

• a porous foam comprising an exterior-facing surface, a tissue contact surface, and a plurality of struts positioned at the tissue contact surface, the plurality of struts of the porous foam configured to directly contact the tissue site and to create tissue deformation at the tissue site, the porous foam being formed of a hydrophobic material configured to prevent fluid absorption within the porous foam such that the porous foam is entirely non-absorbent;
• a moisture barrier configured to cover the exterior-facing surface of the porous foam;
• wherein the porous foam comprises a porosity of 20 to 35 pores per inch such that the porous foam is configured to provide a contact force at least between the plurality of struts and the tissue site to stretch and move tissue into voids positioned among the plurality of struts without the application of a reduced pressure;
• and
• wherein the moisture barrier is configured to trap moisture at the tissue site.