Biomechanical comparison of all-inside meniscal suture configurations for posterior root tear: Three conventional stitches versus delta-grip stitch

IF 2.7 Q2 ORTHOPEDICS Journal of Experimental Orthopaedics Pub Date : 2025-01-22 DOI:10.1002/jeo2.70149

Kyohei Ishibashi, Kyota Ishibashi, Takahiro Tsushima, Eiji Sasaki, Shohei Yamauchi, Yuka Kimura, Yasuyuki Ishibashi

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Abstract

Purpose

This study aimed to compare the biomechanical properties of four meniscal suture configurations—two simple sutures (TSS), two cinch sutures, a locking loop stitch (LLS), and a delta-grip stitch (DGS)—for transtibial pullout repair of medial meniscus posterior root tears (MMPRTs) using porcine menisci.

Methods

Forty porcine menisci were randomly assigned to each suture configuration with all-inside repair. All specimens were subjected to cyclic loading for 1000 cycles, followed by a load-to-failure test. We evaluated displacement after cyclic loading, the ultimate failure load and the mode of failure.

Results

No significant differences in displacement were observed between the configurations (p = 0.709). The DGS exhibited significantly higher ultimate failure loads (281.4 ± 53.5 N) compared to TSS (166.8 ± 84.5 N) and the LLS (119.7 ± 46.7 N) (p = 0.006 and p < 0.001, respectively). Suture breakage was observed in the DGS group, while meniscus cutout was observed in the other suture configuration models.

Conclusion

The results suggest that the DGS provides superior fixation strength and enhances MMPRT repair outcomes.

Level of Evidence

Level IV.

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后根撕裂全内半月板缝合方式的生物力学比较：三种常规缝合与三角握针缝合。

目的：本研究旨在比较四种半月板缝合方式——两种简单缝合（TSS），两种夹持缝合，一种锁定环缝合（LLS）和一种三角-握针缝合（DGS）——用于猪半月板内侧半月板后根撕裂（MMPRTs）的经胫骨拉拔修复。方法：将40只猪半月板随机分为两组，采用全内缝合。所有试件都进行了1000次循环加载，然后进行了加载至破坏试验。我们评估了循环加载后的位移、极限破坏荷载和破坏模式。结果：两种构型之间的位移无显著差异（p = 0.709）。DGS的极限断裂载荷（281.4±53.5 N）明显高于TSS（166.8±84.5 N）和LLS(119.7±46.7 N) (p = 0.006和p) （p = 0.006和p）。结论：DGS具有更好的固定强度，提高了MMPRT修复效果。证据等级：四级。

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