Stritch School of Medicine, Loyola University, Chicago, Maywood, U.S.A..
Hinsdale Orthopaedic Associates, Hinsdale, U.S.A.; Orthopaedic Surgery and Sports Medicine Teaching and Research Foundation, Westmont, Illinois, U.S.A.
Arthroscopy. 2019 Aug;35(8):2461-2466. doi: 10.1016/j.arthro.2019.03.053.
To compare the inherent mechanical properties of suture in tape configuration with a flat, evenly distributed core to a round suture with a round core composed of the same materials.
SutureTape and FiberWire composed of equivalent materials were used to tie surgical knots. Knot height was measured. Knot security was measured at the maximum load at 1, 2, and 3 mm of displacement and at failure. Tensile strength and stiffness were measured using untied samples.
SutureTape demonstrated superior knot security with greater ultimate load to failure (327.2 ± 15.4 N vs 257.4 ± 12.2 N; P = .002), maximum load at 1 mm of displacement (149.8 ± 18.6 N vs 108.8 ± 13.8 N; P = .001), and 2 mm of displacement (242.7 ± 38.6 N vs 181.2 ± 24.4 N; P = .008). It also demonstrated greater stiffness (5.4 ± 0.3 N/mm vs 2.8 ± 0.3 N/mm; P < .001) and tensile strength (378.8 ± 13.6 N vs 235.6 ± 4.8 N). Knot height differences (1.27 ± .11 mm vs 1.37 ± .08 mm; P = .110) and load at 3 mm of displacement (279.3 ± 42.4 N vs 225.5 ± 46.1 N; P = .062) were not statistically significant.
During mechanical testing, SutureTape with a broad core distributed over the full width of the tape demonstrated greater knot security, ultimate load to failure, and tensile stiffness than FiberWire, a round core suture. We found no significant difference in knot stack height between the suture designs.
The study demonstrates the superior mechanical properties of suture in tape configuration over similarly composed round suture without a significant difference in knot stack height. Suture in tape configuration has the potential to perform as well as round suture in the clinical setting.
比较具有相同材料组成的扁平等分布核心的带型缝线与圆形缝线在固有机械性能方面的差异。
使用由相同材料构成的 SutureTape 和 FiberWire 来结扎手术结，测量结的高度。在 1、2 和 3mm 位移和失效时，测量最大负载下的结安全性。使用未打结的样本测量拉伸强度和刚性。
SutureTape 在失效时具有更高的极限负载（327.2±15.4N 与 257.4±12.2N；P=0.002）、1mm 位移时的最大负载（149.8±18.6N 与 108.8±13.8N；P=0.001）和 2mm 位移时的最大负载（242.7±38.6N 与 181.2±24.4N；P=0.008），具有更高的刚性（5.4±0.3N/mm 与 2.8±0.3N/mm；P<0.001）和拉伸强度（378.8±13.6N 与 235.6±4.8N）。结高度差异（1.27±0.11mm 与 1.37±0.08mm；P=0.110）和 3mm 位移时的负载（279.3±42.4N 与 225.5±46.1N；P=0.062）无统计学意义。
在力学测试中，与具有圆形核心的 FiberWire 缝线相比，具有更宽核心的带型缝线在整个带的宽度上分布更均匀，具有更高的结安全性、失效时的极限负载和拉伸刚性。我们在两种缝线设计之间没有发现结堆叠高度的显著差异。
该研究表明，带型缝线在固有机械性能方面优于具有相同组成的圆形缝线，而结堆叠高度没有显著差异。带型缝线有可能在临床环境中与圆形缝线一样表现良好。
