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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: Surg Clin North Am. 2008 Feb;88(1):1–vii. doi: 10.1016/j.suc.2007.10.007

Fig. 3.

Fig. 3

Incisional hernias occur when suture fails, suture lines are too loose, or suture pulls through the tissue adjacent to the wound. This develops before the laparotomy wound scar is mechanically capable of withstanding the distractive forces. The provisional matrix (PM) is comprised of immature and weak matrix glycoproteins and collagen isoforms. In addition, the scar to wound interface is not developed.