Title: Shrinkage and biomechanical evaluation of lightweight synthetics in a rabbit model for primary fascial repair
Authors: Ozog, Yves ×
Konstantinovic, Maja L
Werbrouck, Erika
De Ridder, Dirk
Edoardo, Mazza
Deprest, Jan #
Issue Date: Sep-2011
Publisher: Springer International
Series Title: International Urogynecology Journal vol:22 issue:9 pages:1099-1108
Abstract: INTRODUCTION AND HYPOTHESIS: The experiment evaluated different lightweights (<32 g/m(2)) in terms of shrinkage and biomechanics. METHODS: PP-8 (polypropylene of 7.6 g/m(2)), PP-s (PP-8 with absorbable sheets), PP-32 (PP with absorbable fibers; 32.0 g/m(2)) and polyvinylidinefluoride (PVDF; 24.9 g/m(2)) augmented primary sutured repairs of the anterior abdominal wall in a total of 40 rabbits. Rabbits were implanted by only one type of mesh at four abdominal sites. After 7, 14, 30, 60 and 120 days, 2 rabbits were sacrificed per group. Three additional unoperated rabbits were used as controls. Shrinkage and uni-axial tensiometry were evaluated. RESULTS: PP-s implants wrinkled in 70%. PP-32 did not shrink whereas PP-8 and PVDF shrank by 20%. Explants were as strong as the controls; however, they differed in compliance. At lower stress, the tested materials were equally stiff. CONCLUSIONS: The biomechanical behaviour of the tested lightweights does not mimic that of native controls. Weight reduction does not prevent shrinkage.
ISSN: 0937-3462
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Foetal Medicine Section (-)
Urology Section (-)
× corresponding author
# (joint) last author

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