Figure 3

Double suture histological evaluation. A) Deep inflammatory reaction on the prosthesis borderline, contiguous to the sealed pressure ulcer, whose track is completely absent (arrow; H&E; 150x); B) Superficial foreign body reaction to the nylon stitches which have produced strong collagen reaction and doubled the skin thickness over the pressure ulcer (arrow; H&E; 100x); C) The absorbable purse-string suture buried around the pressure ulcer circumference with moderate foreign body inflammatory reaction (arrow; H&E; 100x); D) Overview of superficial plane (black arrow) and deep plane (red arrow) with a nylon intermingled suture and complete restoration of a thick dermal layer. The pressure ulcer track is not visible. (H&E; 100x).