Pull-out strength and stiffness of meniscal repair using absorbable arrows or Ti-Cron vertical and horizontal loop sutures
Pull-out strength and stiffness of meniscal repair using absorbable arrows or Ti-Cron vertical and horizontal loop sutures
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DOI：
10.1177/03635465990270051401
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发表时间：
1999-09-01
影响因子：
4.8
通讯作者：
Arnoczky, SP
中科院分区：
文献类型：
--
作者：
Boenisch, UW;Faber, KJ;Arnoczky, SP
我们使用生物可吸收箭头和垂直和水平环形缝合线在新鲜冷冻的牛外侧半月板中测试了半月板修复的拉力和线性刚度。在第一阶段，使用 2-0 Ti-Cron 垂直或水平环缝合线修复半月板，或以 12.5 毫米/秒的速度加载 10、13 或 16 毫米半月板箭头直至失效。在第二阶段，我们使用 10 毫米和 13 毫米箭头检查了接合的倒刺数量和插入角度。两个缝合修复组的拉拔强度均显着高于箭头组。垂直环形缝合线比水平缝合线和 10 毫米箭头明显更硬。在第二阶段，10 毫米箭头的平均极限失效载荷为 35.1 N，明显强于第一阶段（18.5 N）；然而，刚度仍然很低（7.9 N/mm）。 13mm组中的5支箭平行于胫骨表面插入，与I期没有显着差异。5支箭以超过30度的角度插入。该组明显弱于第一阶段。单垂直环缝线显示出最高的整体拉出强度。虽然箭头比缝线弱，但它应该为半月板愈合提供足够的稳定性。接合的倒刺数量和插入角度至关重要。
We tested pull-but strength and linear stiffness of meniscal repair using bioabsorbable arrows and vertical and horizontal loop sutures in fresh-frozen bovine lateral menisci. In phase I, menisci repaired either with 2-0 Ti-Cron vertical or horizontal loop suture, or 10-, 13-, or 16-mm Meniscus Arrows were loaded to failure at 12.5 mm/sec. In phase II, we examined the number of barbs engaged and angle of insertion using 10- and 13-mm arrows. Pull-out strengths of both suture repair groups were significantly higher than those of the arrow groups. Vertical loop sutures were significantly stiffer than horizontal sutures and 10-mm arrows. In phase II, the mean ultimate load to failure for the 10-mm arrows was 35.1 N, significantly stronger than in phase 1 (18.5 N); however, stiffness remained low (7.9 N/mm). Five arrows in the 13-mm group were inserted parallel to the tibial surface and showed no significant difference from phase I. Five arrows were inserted at more than a 30 degrees angle. This group was significantly weaker than in phase I. Single vertical loop suture showed the highest overall pull-out strength. Although weaker than sutures, arrows should provide sufficient stability for meniscal healing. The number of barbs engaged and angle of insertion are critical.