Chang Min Kai, Wong Yoke Rung, Tay Shian Chao
1 Duke-NUS Medical School, Singapore.
2 Biomechanics Laboratory, Singapore General Hospital, Singapore.
J Hand Surg Eur Vol. 2018 Nov;43(9):919-924. doi: 10.1177/1753193418769804. Epub 2018 Apr 24.
We compared the Lim/Tsai tendon repair technique using an extra-tendinous knot with modification using an intra-tendinous knot. The ultimate tensile strength, load to 2 mm gap force, stiffness, mode of failure, location of failure, and time taken to repair each tendon were recorded during a single cycle loading test in 20 tendons with each repair method. We found that the ultimate tensile strength and 2 mm gap force of the modified Lim/Tsai repair with an extra-tendinous knot (56 SD 5 N and 14 SD 2 N, respectively) were statistically significantly higher than that of the modified Lim/Tsai repair with intra-tendinous knot (51 SD 7 N and 11 SD 2 N, respectively). We conclude that the modified Lim/Tsai repair with extra-tendinous knot is stronger, despite having the same number of core strands.
我们比较了使用腱外结的Lim/Tsai肌腱修复技术与使用腱内结进行改良后的修复技术。在对20条肌腱采用每种修复方法进行的单周期加载试验中，记录了极限抗拉强度、产生2毫米间隙力时的负荷、刚度、失效模式、失效位置以及修复每条肌腱所需的时间。我们发现，采用腱外结的改良Lim/Tsai修复的极限抗拉强度和2毫米间隙力（分别为56±5牛和14±2牛）在统计学上显著高于采用腱内结的改良Lim/Tsai修复（分别为51±7牛和11±2牛）。我们得出结论，尽管核心股数相同，但采用腱外结的改良Lim/Tsai修复更强。
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