کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4298609 | 1288360 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Tensile Strength of a Surgeon's or a Square Knot Tensile Strength of a Surgeon's or a Square Knot](/preview/png/4298609.png)
ObjectiveTo test the integrity of surgeon's knots and flat square knots using 4 different suture materials.Study DesignChromic catgut, polyglactin 910, silk, and polydioxanone sutures were tied in the 2 types of knot configurations. For all sutures, a 0-gauge United States Pharmacopeia suture was used. Knots were tied by a single investigator (J.B.). The suture was soaked in 0.9% sodium chloride for 60 s and subsequently transferred to a tensiometer where the tails were cut to 3-mm length. We compared the knots, measuring knot strength with a tensiometer until the sutures broke or untied.ResultsA total of 119 throws were tied. We found no difference in mean tension at failure between a surgeon's knot (79.7 N) and a flat square knot (82.9 N). Using a χ2 test, we did not find a statistically significant difference in the likelihood of knots coming untied between surgeon's knots (29%) and flat square knots (38%).ConclusionsUnder laboratory conditions, surgeon's knots and flat square knots did not differ in tension at failure or in likelihood of untying.
Journal: Journal of Surgical Education - Volume 67, Issue 4, July–August 2010, Pages 222–226