期刊
INTERNATIONAL UROGYNECOLOGY JOURNAL
卷 20, 期 7, 页码 847-853出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00192-008-0781-x
关键词
Mesh; Polypropylene; Prolapse
资金
- NICHD NIH HHS [R01 HD045590-02, R01 HD045590-03, R01 HD045590-05, R01 HD045590-04, R01 HD045590, R01 HD045590-01A1] Funding Source: Medline
To improve our understanding of the differences in commonly used synthetic prolapse meshes, we compared four newer generation meshes to Gynecare PS (TM) using a tensile testing protocol. We hypothesize that the newer meshes have inferior biomechanical properties. Meshes were loaded to failure (n = 5 per group) generating load-elongation curves from which the stiffness, the load at failure, and the relative elongation were determined. Additional mesh samples (n = 3) underwent a cyclic loading protocol to measure permanent elongation in response to subfailure loading. With the exception of Popmesh, which displayed uniform stiffness, other meshes were characterized by a bilinear behavior. Newer meshes were 70-90% less stiff than Gynecare (TM) (p < 0.05) and more readily deformed in response to uniaxial and cyclical loading (p < 0.001). Relative to Gynecare (TM), the newer generation of prolapse meshes were significantly less stiff, with irreversible deformation at significantly lower loads.
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