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February 19, 2026Hand

Tendon Stapler Device Versus Traditional Suture Repair for Flexor Tendon Injuries: A Biomechanical Comparison

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Authors

RMRichard McKinneyAllegheny Health NetworkABAnna BarclayAllegheny Health NetworkJSJacob SneddonAllegheny Health Network

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Implication

This comparison reveals the strength of tendon stapler repairs over traditional suture methods in cadaver models.

Key Points

  • The aim is to compare the strength of tendon stapler devices and traditional suture techniques for flexor tendon repairs.
  • Used 24 cadaver flexor tendons for repairs.
  • Conducted 12 repairs with the 4-strand locked cruciate stitch and 12 with tendon stapler devices.
  • Analyzed specimens using a uniaxial load frame.
  • Recorded tension and measured gap formation at specific intervals.
  • Performed independent t-tests to compare groups statistically.
  • Load to failure was significantly greater for the staple group (70.6 N) compared to the suture group (49.9 N).
  • Load to 2-mm gap formation also favored the staple group (57.5 N) over the suture group (38.6 N).
  • The differences in load to failure and gap formation were statistically significant.

Cite This Study

McKinney et al. (2026) studied this question.

synapsesocial.com/papers/6996a7efecb39a600b3ee30dhttps://doi.org/10.1177/15589447251415390
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Flexor tendon injuries of the hand treated with TenoFixTM: mid-term results2008 · 18 citations
  2. 2Flexor Tendon Injury and Repair2021 · 17 citations
  3. 3Biomechanical Comparison of Double Grasping Repair versus Cross-Locked Cruciate Flexor Tendon Repair2014 · 13 citations
  4. 4Wrist-Level Tendon Repairs Utilizing a Novel Tendon Stapler Device: An Efficiency and Biomechanical Study2023 · 3 citations