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International Orthopaedics

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01-02-2017 | Original Paper

Does a different dose of gamma irradiation have the same effect on five different types of tendon allografts? — a biomechanical study

Authors: Gyorgy Hangody, Gábor Szebényi, Bence Abonyi, Rita Kiss, László Hangody, Károly Pap

Published in: International Orthopaedics | Issue 2/2017

Abstract

Introduction

The goals of our study were to evaluate the biomechanical differences between five tendons and the changes in biomechanical properties caused by irradiation.

Methods

Achilles, quadriceps, semitendinosus + gracilis (STG), tibialis anterior (TA) and the peroneus longus (PL) were harvested from 30 donors. Group A contained 50 tendons without gamma irradiation. The groups were irradiated with a dose of 21 kGy (group B 50 tendons) and with a dose of 42 kGy (group C 50 tendons). The grafts were soaked in a radio-protectant solution and frozen at −80 °C. Cyclic loading tests were performed followed by load to failure tests. Young modulus of elasticity, maximum force, strain at tensile strength and strain at rupture were calculated.

Results

The Achilles tendons had significantly lower Young modulus than the TA (p = 0.0036) in group A. The Achilles showed significantly lower than PL (p = 0.000042) and TA (p = 0.00142) in group B and C. The quadriceps and the ST (p = 0.0037) provided poorer values than the TA (p = 0.0432) in group C. We found no difference in maximum loads among the tendons in group A. The maximum load of the Achilles and quadriceps showed better results than the PL (p = 0.0016), (p = 0.0018) and the STG (p = 0.0066), (p = 0.0019) in group C. The TA had similar results like the Achilles and quadriceps.

Discussion and conclusions

The vulnerability of gamma irradiation of TA was less than Achilles and quadriceps tendons.

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Title: Does a different dose of gamma irradiation have the same effect on five different types of tendon allografts? — a biomechanical study
Authors: Gyorgy Hangody
Gábor Szebényi
Bence Abonyi
Rita Kiss
László Hangody
Károly Pap
Publication date: 01-02-2017
Publisher: Springer Berlin Heidelberg
Published in: International Orthopaedics / Issue 2/2017
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI: https://doi.org/10.1007/s00264-016-3336-7

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Does a different dose of gamma irradiation have the same effect on five different types of tendon allografts? — a biomechanical study

Abstract

Introduction

Methods

Results

Discussion and conclusions

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Introduction

Methods

Results

Discussion and conclusions

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Acknowledgement to reviewers - International Orthopaedics