Abstract
Stenting is the best approach to manage ureteral extrinsic compression and depends on intraluminal patency, which is mainly determined by cross-sectional stability. We evaluated the resistance to extrinsic compression of the Silhouette Scaffold Device and its ability to simultaneously maintain intraluminal flow. Four 8 F Silhouette stents of different lengths were evaluated for radial compression and intraluminal flow by an MTS Micro Bionix Testing System using Testworks II software. Compression was exerted in 0.2 mm increment cycles until a maximum load cell of 5 N was reached. The Young's modulus, E, was calculated from each trial using engineering stress. Flow rates were compared with the 10.2 F Cook Amplatz. Analysis of variance was used to detect differences between Scaffold stents, and Student's t-test for differences between baseline flow rates. A level of significance of p < 0.05 was used. Cross-sectional area and E did not differ throughout different length Scaffold stents (average 28,856 +/- 2592; 95% confidence interval 27,447, 30,265; p = 0.426). The inner lumen of the 10.2 F Cook Amplatz was larger by 0.125 mm. Baseline flow rate of the Cook Amplatz was significantly higher than that of the Silhouette Scaffold (1.0...Continue Reading
References
Jan 11, 1976·The Journal of Urology·R P GibbonsJ T Mason
Aug 1, 1992·The Journal of Urology·W A HübnerM L Stoller
Aug 1, 1989·The Journal of Urology·S G Docimo, W C Dewolf
Dec 1, 1987·British Journal of Urology·J W RamsayH N Whitfield
Dec 1, 1995·Journal of Endourology·F DesgrandchampsA Le Duc
Dec 24, 1997·The Journal of Urology·J S Liu, R L Hrebinko
Jun 9, 1999·Journal of Endourology·M AhmedA R Manhire
Jul 16, 1999·Journal of Endourology·A V BrewerR V Clayman
Nov 24, 1999·Journal of Endourology·M I FengC E Shapiro
Nov 4, 2000·The Journal of Urology·E O OlwenyR V Clayman
Jan 16, 2002·Journal of Endourology·P RotariuA D Smith
Apr 8, 2006·Urology·Kari HendlinManoj Monga
Nov 29, 2007·Journal of Endourology·Evangelos AravantinosMichael D Melekos
Dec 26, 2007·Urology·Renato N PedroManoj Monga
Nov 18, 2008·The Journal of Urology·Matthew S ChristmanBrian K Auge
Citations
Oct 21, 2011·Journal of Endourology·Kari HendlinManoj Monga
May 8, 2015·International Journal of Urology : Official Journal of the Japanese Urological Association·Sammy E ElsamraZeph Okeke
Oct 28, 2016·Der Urologe. Ausg. A·C NetschA J Gross
Sep 18, 2018·Journal of Endourology·Niall F DavisMichael T Walsh