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Related Experiment Video

Updated: May 3, 2026

A Novel Tenorrhaphy Suture Technique with Tissue Engineered Collagen Graft to Repair Large Tendon Defects

A Novel Tenorrhaphy Suture Technique with Tissue Engineered Collagen Graft to Repair Large Tendon Defects

Published on: December 10, 2021

Does Suture Configuration Matter in Achilles Tendon Repairs?

Nathan Benner¹, Hana Keller², Grant Branam¹

¹Orthopaedics, University of Washington, Seattle, USA.

|November 21, 2025

Summary

A double-locked tape suture configuration provides superior strength for Achilles tendon repairs compared to single configurations. This finding is crucial for improving surgical outcomes in Achilles tendon rupture treatment.

Keywords:

achilles tendon achilles tendon repair sports medicine of the foot and ankle sports problems tendon biomechanics

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Polytetrafluoroethylene PTFE as a Suture Material in Tendon Surgery

Polytetrafluoroethylene PTFE as a Suture Material in Tendon Surgery

Published on: October 6, 2022

Area of Science:

Orthopedic surgery
Biomechanical engineering
Sports medicine

Background:

The Achilles tendon is vital for mobility and prone to rupture, causing significant disability.
Percutaneous repair is an established treatment option for Achilles tendon ruptures.

Purpose of the Study:

To evaluate the mechanical properties of four distinct suture configurations used in Achilles tendon repair.
To determine the optimal suture technique for enhancing construct strength in Achilles tendon repair.

Main Methods:

A biomechanical study using porcine flexor tendons as a human Achilles tendon analogue.
Simulated Achilles tendon ruptures were repaired percutaneously using four suture configurations (single/double locked, round/flat tape).
Tendons underwent static creep, dynamic load creep, and load-to-failure testing, with statistical analysis to compare groups.

Main Results:

No significant differences in creep tests were observed across suture configurations.
Suture configuration significantly impacted the maximum load to failure and maximum stress (p < 0.05).
Double-locked tape sutures demonstrated significantly higher load to failure and stress resistance than single configurations.

Conclusions:

The double-locked tape suture configuration results in a stronger construct for Achilles tendon repair.
This biomechanical study supports the use of double-locked tape sutures in minimally invasive Achilles tendon repair techniques.
Findings provide evidence-based guidance for optimizing surgical repair of Achilles tendon ruptures.