In vitro testing of titanium knot fastener used in cardiac and general surgery with pull apart force
نویسندگان
چکیده
Results The USP Class I Min. Avg. 2-0 Suture Knot-Pull Tensile Strength (Doubled for Loop Test) is defined as 2.88 kgf. The Tensile Strength of Lot # 1-9364 was 4,7761 ± 0,2005 kgf (mean ± std dev) min 4.2282, max 5.2289, and for Lot # 1-9364 was 5,5151 ± 0,2625 kgf (mean ± std dev) min 4,0044, max 5,1356, respectively. There were no statistically signiffcant differences between the both lots (Ftest, p = 0,102). Comparing tensile strenght for both lots fastened with Cor Knot with USP tensile strength, knots fatened with Cor Knot showed higher tensile strengths for all the 48 knots. The minimall tensile strength was in the lot 2-0 PremiCron P/N M0027845, Lot # 110095, and was 4,0044 kgf, which is 1 kgf above the recommended USP strength.
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