Title: Knot Integrity With Nonidentical and Parallel Sliding Knots
Abstract: This study was conducted to test the integrity of nonidentical and parallel sliding knots. Using synthetic absorbable monofilament suture, 4 different groups of knots were each tied with parallel and nonidentical knots and tested for failure, including breakage and unraveling, and maximum load displacement. Groups A and B consisted of 6 and 10 throws, respectively, with 0-0 gauge suture; group C and D had 6 throws and 10 throws, respectively, with 2-0 gauge suture. Twenty tests were performed for each group. Nonidentical sliding knots consisted of nonidentical throws of suture around a single suture held under tension. Parallel knots were made with the suture held under tension alternated for each throw. The knots were tied around stainless steel rings and soaked in a 0.9% sodium chloride solution for 60 seconds. They were then placed in a tensiometer (Instron Testing Machine Model 4202; Instron Co., Canton, MA) and stretched at 5 mm per minute until the suture broke or either tail slipped more than 3 mm. Of the 160 knots total that were tested, 20 became untied, all of them in the nonidentical group. None of the parallel sutures failed. Of the 20 failures, 8 were in group A, 2 in group B, 9 in group C, and 1 in group D. The maximum load required for failure in knots made with 0-0-gauge suture were a mean of 94.2 and 111.3 for nonidentical knots made with 6 or 10 throws, respectively, and 137.7 to 131.4, respectively, for parallel knots. For knots made with 2.0-gauge suture, the maximum load was a mean of 66.2 for 6 throws and 83.3 for 10 throws in nonidentical knots and 94.0 and 98.9 in parallel knots, respectively.
Publication Year: 2004
Publication Date: 2004-05-01
Language: en
Type: article
Indexed In: ['crossref']
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