Editing Mesh (section)

== '''Synthetic non-absorbable''' ==

* '''Materials'''
** '''Polyester'''
*** Composed of polyethylene terephthalate
*** Hydrophilic, heavyweight, macroporous mesh
*** Comparable complication rates to other products when placed in pre-peritoneal space
*** Appropriate for extraperitoneal use
*** Infected polyester mesh generally requires at least partial removal - areas that are well-incorporated at time of removal can be left behind
** '''Polypropylene'''
*** Hydrophobic macro-porous mesh
*** Allows the ingrowth of native fibroblasts and incorporation into surrounding fascia
*** Semi-rigid, somewhat flexible, and porous
*** Lightweight polypropylene meshes often have an absorbable component of Vicryl or Monocryl which provides initial handling stability
*** Appropriate for extraperitoneal use
*** Tend to be the best for mesh salvage
** '''Expanded polytetrafluoroethylene (ePTFE)'''
*** More expensive
*** Non-adherent to bowel in micro-porous form
*** Can be made in composite-type form - micro-porous on the visceral side and macro-porous on the abdominal wall side to promote tissue ingrowth
*** Impermeable to fluid
*** Not incorporated into native tissue like polypropylene
*** Does not allow skin grafting on top
*** When it is infected, it almost always needs to be removed
** '''Composite'''
*** ePTFE on the visceral surface, polypropylene on the abdominal wall surface
**** Variable rates of contraction, so can cause buckling of the mesh
*** There are also combinations of synthetic meshes with biologic coatings