Jarrett C D, McGillivary G R, Hutton W C
Department of Orthopaedics, Emory University School of Medicine Atlanta, GA 30329, USA.
J Hand Surg Eur Vol. 2010 Feb;35(2):139-43. doi: 10.1177/1753193409349152. Epub 2009 Oct 14.
We compared the biomechanical strength of the 2.5 mm PushLock suture anchor with a traditional Bio-SutureTak suture anchor in repair of ulnar collateral ligament injuries. Iatrogenic ulnar collateral ligament injuries in 18 cadaveric thumbs were repaired and used to test for load to failure and cyclic loading. The average force required to generate a 2 mm gap was 7.7 N for the 2.5 mm PushLock and 6.3 N for the Bio-SutureTak (p = 0.04). The ultimate load to failure was 28.0 N for the 2.5 mm PushLock and 18.8 N for the Bio-SutureTak (p = 0.16). There were no statistical differences between the two suture anchors under cyclic loading. The 2.5 mm PushLock suture anchor provides significantly stronger resistance to 2 mm gap formation at the repair site and is less likely to fail at the suture-ligament interface. However, there was no difference in the load to failure between the two suture anchors.
我们比较了2.5毫米PushLock缝线锚钉与传统Bio - SutureTak缝线锚钉在修复尺侧副韧带损伤时的生物力学强度。对18具尸体拇指的医源性尺侧副韧带损伤进行修复，并用于测试破坏载荷和循环加载。产生2毫米间隙所需的平均力，2.5毫米PushLock为7.7牛，Bio - SutureTak为6.3牛（p = 0.04）。2.5毫米PushLock的极限破坏载荷为28.0牛，Bio - SutureTak为18.8牛（p = 0.16）。在循环加载下，两种缝线锚钉之间无统计学差异。2.5毫米PushLock缝线锚钉在修复部位对2毫米间隙形成的抵抗明显更强，且在缝线 - 韧带界面处失败的可能性更小。然而，两种缝线锚钉的破坏载荷没有差异。
