OBJECTIVE  This article evaluates the effect of an interlocking horizontal mattress epitendinous suture (IHMES) in addition to a three-loop pulley (3LP) core suture for canine tendon repair. STUDY DESIGN  Twenty-eight cadaveric common calcaneal tendons were randomized, sharply transected and repaired with either a 3LP or 3LP + IHMES. Tensile loads required to create a 1- and 3-mm gap, yield, peak and failure loads, and mode of failure were analysed. Significance was set at p < 0.05. RESULTS  Mean ± standard deviation yield and failure force for 3LP + IHMES was 178.0 ± 45.3 N and 242.1 ± 47.8 N, respectively, which was significantly greater compared with 3LP alone, 97.9 ± 36.2 N and 119.3 ± 35.6 N (p < 0.0001). Occurrence of 3-mm gap formation was significantly less in the 3LP + IHMES group (p < 0.013). Mode of failure was significantly different between the groups (p < 0.001) with 3LP + IMHES patterns failing by suture breakage (13/14) compared with suture pull-through in the 3LP (11/14). CONCLUSION  Addition of an epitendinous suture pattern significantly reduced gap formation between tendon ends and significantly increased loads at yield (1.8 × ), peak (2.0 × ) and failure (2.0 × ) force of repairs. Use of an epitendinous suture should be considered to significantly increase biomechanical strength of repairs; however, further in vivo testing is necessary to evaluate its effect on tendinous blood supply.

中文翻译：

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互锁水平床垫表皮缝线放置对犬普通Cal裂模型中生物力学特性的影响。

目的评估三环滑轮（3LP）芯线缝合犬腱修复的效果，同时采用互锁水平床垫表皮缝合线（IHMES）的效果。研究设计将28具尸体的普通跟骨肌腱随机，锐角横断并用3LP或3LP + IHMES修复。分析了产生1毫米和3毫米间隙所需的拉伸载荷，屈服载荷，峰值载荷和破坏载荷以及破坏模式。显着性设定为p ＜0.05。结果3LP + IHMES的平均±标准偏差屈服和破坏力分别为178.0±45.3 N和242.1±47.8 N，与单独使用3LP时分别为97.9±36.2 N和119.3±35.6 N相比，显着更大（p <0.0001）。3LP + IHMES组中3 mm间隙形成的发生率显着降低（p <0.013）。3LP + IMHES模式因缝合线断裂而失败的组（13/14）与3LP的缝合线穿通（11/14）的组之间的失败模式显着不同（p <0.001）。结论添加表皮缝合线可显着减少腱末端之间的缝隙形成，并显着增加修复的屈服力（1.8×），峰值（2.0×）和破坏力（2.0×）的负荷。应该考虑使用表皮缝合线，以显着提高修复的生物力学强度。但是，需要进一步的体内测试来评估其对腱血供应的影响。结论添加表皮缝合线可显着减少腱末端之间的缝隙形成，并显着增加修复的屈服力（1.8×），峰值（2.0×）和破坏力（2.0×）的负荷。应该考虑使用表皮缝合线，以显着提高修复的生物力学强度。但是，需要进一步的体内测试来评估其对肌腱血液供应的影响。结论添加表皮缝合线可显着减少腱末端之间的缝隙形成，并显着增加修复的屈服力（1.8×），峰值（2.0×）和破坏力（2.0×）的负荷。应该考虑使用表皮缝合线，以显着提高修复的生物力学强度。但是，需要进一步的体内测试来评估其对腱血供应的影响。