Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model

Background: The aim of this study is to compare two types of suture bridging constructs; a laterally based bridging single row (SR) construct and a classic dual row (DR) suture bridge construct. The hypothesis is that the DR construct will demonstrate superior biomechanical properties. Methods: Six...

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Main Authors: Tan, Kelvin Guoping, Lie, Denny Tjiauw Tjoen, Yew, Andy Khye Soon, Chou, Siaw Meng
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2021
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Online Access:https://hdl.handle.net/10356/151661
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spelling sg-ntu-dr.10356-1516612021-07-14T06:53:18Z Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model Tan, Kelvin Guoping Lie, Denny Tjiauw Tjoen Yew, Andy Khye Soon Chou, Siaw Meng School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Rotator Cuff Biomechanical Phenomena Background: The aim of this study is to compare two types of suture bridging constructs; a laterally based bridging single row (SR) construct and a classic dual row (DR) suture bridge construct. The hypothesis is that the DR construct will demonstrate superior biomechanical properties. Methods: Six matched pairs of sheep infraspinatus tendon tears repaired with these two different types of suture bridging techniques were tested for gap formation, ultimate failure load and mode of failure. The specimens were pre-cycled for 10 cycles before they were subjected to a constant pre-load of 10N. The specimens were then subjected to cyclic loading at a speed of 8.33 mm/s. The test was stopped after every 500 cycles for a total of 3000 cycles. Results: Mean gap formation after 3000 cycles was lower in the DR group (0.81 ± 0.2 mm versus 2.44 ± 0.27 mm; p = 0.002). Mean change in gap (with every 500 cycles) was also lesser for the DR group after 1500 cycles. DR repairs failed at a higher load (523.4 ± 80.4 N) compared to the SR repairs (452.3 ± 66.3 N) but this did not reach significance. All repairs failed with sutures pulling through the tendon during load to failure testing. Conclusions: Gap formation is significantly lower with a dual row suture bridge construct than a laterally based bridging single row construct. Level of evidence: Biomechanical study. We thank the following people for their help: Mr. Jeremy Leong and Mr. Lim Yaofeng, final year Nanyang Technological University (NTU) students for help with design and conduct of the experiment. Ms. Pattaraorn Yu, research assistant, for her help with the experiments, and her feedback and suggestions through the duration of the project. Ms Heng Chee Hoon, technical staff at Biological and Chemical Laboratory, for organizing a workspace for the project, providing logistical support and guiding the authors on the operation of the Instron machine. 2021-07-14T06:53:18Z 2021-07-14T06:53:18Z 2019 Journal Article Tan, K. G., Lie, D. T. T., Yew, A. K. S. & Chou, S. M. (2019). Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model. Journal of Orthopaedic Science, 25(1), 115-121. https://dx.doi.org/10.1016/j.jos.2019.03.005 0949-2658 0000-0003-4036-870X https://hdl.handle.net/10356/151661 10.1016/j.jos.2019.03.005 30914150 2-s2.0-85063154757 1 25 115 121 en Journal of Orthopaedic Science © 2019 The Japanese Orthopaedic Association (Published by Elsevier B.V.). All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
Rotator Cuff
Biomechanical Phenomena
spellingShingle Engineering::Mechanical engineering
Rotator Cuff
Biomechanical Phenomena
Tan, Kelvin Guoping
Lie, Denny Tjiauw Tjoen
Yew, Andy Khye Soon
Chou, Siaw Meng
Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model
description Background: The aim of this study is to compare two types of suture bridging constructs; a laterally based bridging single row (SR) construct and a classic dual row (DR) suture bridge construct. The hypothesis is that the DR construct will demonstrate superior biomechanical properties. Methods: Six matched pairs of sheep infraspinatus tendon tears repaired with these two different types of suture bridging techniques were tested for gap formation, ultimate failure load and mode of failure. The specimens were pre-cycled for 10 cycles before they were subjected to a constant pre-load of 10N. The specimens were then subjected to cyclic loading at a speed of 8.33 mm/s. The test was stopped after every 500 cycles for a total of 3000 cycles. Results: Mean gap formation after 3000 cycles was lower in the DR group (0.81 ± 0.2 mm versus 2.44 ± 0.27 mm; p = 0.002). Mean change in gap (with every 500 cycles) was also lesser for the DR group after 1500 cycles. DR repairs failed at a higher load (523.4 ± 80.4 N) compared to the SR repairs (452.3 ± 66.3 N) but this did not reach significance. All repairs failed with sutures pulling through the tendon during load to failure testing. Conclusions: Gap formation is significantly lower with a dual row suture bridge construct than a laterally based bridging single row construct. Level of evidence: Biomechanical study.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Tan, Kelvin Guoping
Lie, Denny Tjiauw Tjoen
Yew, Andy Khye Soon
Chou, Siaw Meng
format Article
author Tan, Kelvin Guoping
Lie, Denny Tjiauw Tjoen
Yew, Andy Khye Soon
Chou, Siaw Meng
author_sort Tan, Kelvin Guoping
title Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model
title_short Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model
title_full Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model
title_fullStr Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model
title_full_unstemmed Gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model
title_sort gap formation after single lateral row versus dual-row suture bridge cuff repair : an ovine biomechanical model
publishDate 2021
url https://hdl.handle.net/10356/151661
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