Title: Tensile Strength and Host Response towards Silk and Type I Polypropylene Implants Used for Augmentation of Fascial Repair in a Rat Model
Authors: Spelzini, Federico ×
Konstantinovic, Maja
Guelinckx, Isabelle
Verbist, Godelieve
Verbeken, Eric
De Ridder, Dirk
Deprest, Jan #
Issue Date: 2007
Publisher: Karger
Series Title: Gynecologic and obstetric investigation vol:63 issue:3 pages:155-162
Abstract: Objective: We compared host response, architectural integration and tensile strength of two different macroporous silk constructs to a polypropylene type I implant in a rat model for augmentation of primary fascial defect repair. Materials and Methods: Animals were sacrificed on days 7, 14, 30 and 90 after implantation. The explants were evaluated macroscopically for infections, herniations and adhesions, mechanically for tensile strength, and histopathologically, to evaluate collagen deposition and inflammatory response. Results: The tensile strength of the explants showed a gradual increase for all materials. All implants uniformly shrank around one fifth by 90 days. In the silk implants, the inflammatory reaction showed a remarkable higher number of foreign body giant cells that characteristically spread from the periphery into implants. Collagen deposition was comparable for all the materials. In Silk a higher grade of neovascularisation was observed. Conclusion: Silk explants expressed high tensiometric strength, which was associated with a marked fibrotic process. The silk implants induced a strong foreign body reaction accompanied by microscopic signs of architectural degradation at 90 days. Polypropylene explants showed a more moderate foreign body reaction without architectural disturbance. Copyright (c) 2007 S. Karger AG, Basel.
ISSN: 0378-7346
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Section Woman - Miscellaneous (-)
Nutrition (-)
Translational Cell & Tissue Research
Urology Section (-)
Basic Research in Gynaecology Section (-)
Foetal Medicine Section (-)
× corresponding author
# (joint) last author

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