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Effect of geometry on the fixation strength of anterior cruciate ligament reconstruction using BASHTI technique. / Moeinnia, Hadi ; Nourani, Amir ; Borjali, Amirhossein; Mohseni, Mahdi ; Ghias, Narges ; Korani, Hossein ; Chizari, Mahmoud.

In: Journal of Knee Surgery, 08.09.2020.

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Moeinnia, Hadi ; Nourani, Amir ; Borjali, Amirhossein ; Mohseni, Mahdi ; Ghias, Narges ; Korani, Hossein ; Chizari, Mahmoud. / Effect of geometry on the fixation strength of anterior cruciate ligament reconstruction using BASHTI technique. In: Journal of Knee Surgery. 2020.

Bibtex

@article{ebab6fc397e84220b73a9719247e8e44,
title = "Effect of geometry on the fixation strength of anterior cruciate ligament reconstruction using BASHTI technique",
abstract = "The goal of this study is to investigate the effects of tendon and cannulated drill bit diameter on the strength of the bone and site hold tendon inside (BASHTI) fixation technique for an anterior cruciate ligament (ACL) reconstruction. Bovine digital tendons and Sawbones blocks were used to mimic the ACL reconstruction. Mechanical strength of the specimens was measured using a cyclic loading continued by a single cycle pull-out load until failure to simulate the real post-surgical loading conditions. Finally, failure modes of specimens and ultimate failure load were recorded. The maximum possible tendon surface strain (i.e. tendon compression) for tendon diameters of 6, 7, 8, and 9 mm were 0.73, 0.8, 0.7, and 0.65, respectively. 80% of the specimens with tendon diameter of 6 mm and 20% of specimens with tendon diameter of 7 mm failed on the torn tendon. All samples with larger tendon diameters (i.e. 8 and 9 mm) failed on the fixation slippage. The maximum fixation strength according to the most suitable core bones for 6, 7, 8 and 9 mm tendons were 148±47 N (core 9.5 mm), 258±66 N (core 9.5 mm), 386±128 N (core 8.5 mm) and 348±146 N (core 8.5 mm), respectively. The mode of tendon failure was significantly influenced by the tendon diameter. Also, an increase in tendon compression (TC) raised the fixation strength for all tendon diameters; however, tendon over compression decreased the fixation strength for the 8 mm tendon group. Finally, an empirical equation was proposed to predict BASHTI fixation strength.",
author = "Hadi Moeinnia and Amir Nourani and Amirhossein Borjali and Mahdi Mohseni and Narges Ghias and Hossein Korani and Mahmoud Chizari",
note = "{\textcopyright} 2020 Thieme Publishing Group. This is an accepted manuscript of an article accepted for publication in Journal of Knee Surgery; https://dx.doi.org/10.1055/s-0040-1716371.",
year = "2020",
month = sep,
day = "8",
doi = "10.1055/s-0040-1716371",
language = "English",
journal = "Journal of Knee Surgery",
issn = "1938-2480",
publisher = "Thieme Medical Publishers",

}

RIS

TY - JOUR

T1 - Effect of geometry on the fixation strength of anterior cruciate ligament reconstruction using BASHTI technique

AU - Moeinnia, Hadi

AU - Nourani, Amir

AU - Borjali, Amirhossein

AU - Mohseni, Mahdi

AU - Ghias, Narges

AU - Korani, Hossein

AU - Chizari, Mahmoud

N1 - © 2020 Thieme Publishing Group. This is an accepted manuscript of an article accepted for publication in Journal of Knee Surgery; https://dx.doi.org/10.1055/s-0040-1716371.

PY - 2020/9/8

Y1 - 2020/9/8

N2 - The goal of this study is to investigate the effects of tendon and cannulated drill bit diameter on the strength of the bone and site hold tendon inside (BASHTI) fixation technique for an anterior cruciate ligament (ACL) reconstruction. Bovine digital tendons and Sawbones blocks were used to mimic the ACL reconstruction. Mechanical strength of the specimens was measured using a cyclic loading continued by a single cycle pull-out load until failure to simulate the real post-surgical loading conditions. Finally, failure modes of specimens and ultimate failure load were recorded. The maximum possible tendon surface strain (i.e. tendon compression) for tendon diameters of 6, 7, 8, and 9 mm were 0.73, 0.8, 0.7, and 0.65, respectively. 80% of the specimens with tendon diameter of 6 mm and 20% of specimens with tendon diameter of 7 mm failed on the torn tendon. All samples with larger tendon diameters (i.e. 8 and 9 mm) failed on the fixation slippage. The maximum fixation strength according to the most suitable core bones for 6, 7, 8 and 9 mm tendons were 148±47 N (core 9.5 mm), 258±66 N (core 9.5 mm), 386±128 N (core 8.5 mm) and 348±146 N (core 8.5 mm), respectively. The mode of tendon failure was significantly influenced by the tendon diameter. Also, an increase in tendon compression (TC) raised the fixation strength for all tendon diameters; however, tendon over compression decreased the fixation strength for the 8 mm tendon group. Finally, an empirical equation was proposed to predict BASHTI fixation strength.

AB - The goal of this study is to investigate the effects of tendon and cannulated drill bit diameter on the strength of the bone and site hold tendon inside (BASHTI) fixation technique for an anterior cruciate ligament (ACL) reconstruction. Bovine digital tendons and Sawbones blocks were used to mimic the ACL reconstruction. Mechanical strength of the specimens was measured using a cyclic loading continued by a single cycle pull-out load until failure to simulate the real post-surgical loading conditions. Finally, failure modes of specimens and ultimate failure load were recorded. The maximum possible tendon surface strain (i.e. tendon compression) for tendon diameters of 6, 7, 8, and 9 mm were 0.73, 0.8, 0.7, and 0.65, respectively. 80% of the specimens with tendon diameter of 6 mm and 20% of specimens with tendon diameter of 7 mm failed on the torn tendon. All samples with larger tendon diameters (i.e. 8 and 9 mm) failed on the fixation slippage. The maximum fixation strength according to the most suitable core bones for 6, 7, 8 and 9 mm tendons were 148±47 N (core 9.5 mm), 258±66 N (core 9.5 mm), 386±128 N (core 8.5 mm) and 348±146 N (core 8.5 mm), respectively. The mode of tendon failure was significantly influenced by the tendon diameter. Also, an increase in tendon compression (TC) raised the fixation strength for all tendon diameters; however, tendon over compression decreased the fixation strength for the 8 mm tendon group. Finally, an empirical equation was proposed to predict BASHTI fixation strength.

UR - https://www.thieme-connect.com/products/ejournals/abstract/10.1055/s-0040-1716371

U2 - 10.1055/s-0040-1716371

DO - 10.1055/s-0040-1716371

M3 - Article

JO - Journal of Knee Surgery

JF - Journal of Knee Surgery

SN - 1938-2480

ER -