Functional Duration of Closure Systems Used in Partial Nephrectomy
2016
Purpose: We determined the functional life of various configurations of partial nephrectomy closure systems.Materials and Methods: Sutures were prepared using standard techniques for sutured renorrhaphy during partial nephrectomy. Tested systems included knot/Hem-o-Lok®, Lapra-Ty®/Hem-o-Lok and Hem-o-Lok/Hem-o-Lok combinations. The saline filled tank was maintained at 37C. Vicryl®, Stratafix™ polyglycolic acid-polycaprolactone or V-Loc™ 180 sutures were suspended at 4 or 2 N. Suture material breakage or slippage was considered failure.Results: At 4 N 20% of sutures terminated with knot/Hem-o-Lok failed by 3 weeks compared to 56% and 100% terminated with Lapra-Ty/Hem-o-Lok and Hem-o-Lok/Hem-o-Lok, respectively (p <0.0001). The 55% and 100% of failures with Lapra-Ty/Hem-o-Lok and Hem-o-Lok/Hem-o-Lok, respectively, were generally due to slippage vs 11% with knot/Hem-o-Lok (p <0.0001). Overall failure rates with Lapra-Ty/Hem-o-Lok for zero to 4-zero sutures were 41% with Vicryl, 82% with polyglycolic acid-pol...
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