Effective Porosity
During incorporation, the filaments are enclosed by an inner (pink) and outer (blue) granuloma. When the distance between adjacent filaments is too small, there is a risk of bridging scar tissue, resulting in a closed pore. Sufficiently large pores can reduce this risk [8P].
What is a sufficient distance between adjacent filaments? PP mesh implants should have a filament distance of at least 1 mm in all directions to avoid bridging (entire pore closed by scar tissue). A filament distance of 0.6 mm is sufficient for implants made of PVDF to keep the pores open [68A, 105A].
| [#] | Reference “#” (see “References”) |
| [TR#] | Internal test report (see “internal test report references”) |
| Limitations | “A” animal trial, “B” bench test, “VIT” in-vitro trial, “P” published results based on the analysis of human mesh explants, “PB” published results mainly based on bench tests |