Wound healing is a dynamic and well-orchestrated
process, regulated by biological and molecular
events consisting of cell migration, cell proliferation
and deposition of ECM. It comprises four
overlapping phases: haemostasis, inflammation,
proliferation and wound contraction.7,8 Complex
interactions must occur between growth factors,
cells and matrix components to complete each
phase and to move sequentially to the next one.
When an alteration of this fine regulation occurs,
the wound stalls in the inflammatory phase and
the healing does not occur.9,10 This is the difference
that is identified in a chronic ulcer compared
with an acute wound.