Does the 5-strand-graft have superior biomechanical behaviour than 4-strand-graft during acl reconstruction?

Antonino Sanfilippo, Lawrence Camarda, Giuseppe Pitarresi, Pitarresi, D’Arienzo, Antonio D'Arienzo, Davide Pavan, Federica Morello, Francesco Monachino

Risultato della ricerca: Article

Abstract

Purpose. This study aimed to compare the biomechanical proprieties of 4 and 5-strand- grafts.Methods. For the present study, fresh-frozen bovine common digital extensor tendons were used. Tendon grafts were prepared and sized to have a length of almost 27 cm and a cylinder 4 strand diameter of 8 mm. In half of all samples (Group A, n=12,), the graft was formed by 2 bundles duplicated around a metallic rod creating a 4-strand-tendon construct. In the other half of samples (Group B, n= 12,) 5-strand-tendon construct was created duplicating a single tendon around the rod, and tripling the other one. The grafts were preconditioned at 50 N for 10 min, followed by 1,000 cyclic loading between 50 and 250 N. Load-to-failure test was then carried out at a rate of 1 mm/s.Results. No statistically significant differences were found between two groups concern- ing cyclic elongation at the 500th cycle and at the final cycle. An increased stiffness was observed in the Group B during cyclic loads and at pull-out (p<0.05). Significant differ- ences were noted at the ultimate load-to-failure between Group A (1533 ± 454 N) and Group B (1139 ± 276 N) (p< 0.05).Conclusion. This study showed that both graft construct appears to be biomechanical- ly effective in a bovine tendon model. 5-strand-graft showed an increased stiffness and a decreased ultimate load-to-failure comparing to the 4-strand-graft construct. Biomechan- ically, no real benefit could be observed in the clinical setting increasing the numbers of strands used for the ACL reconstructive surgery.
Lingua originaleEnglish
pagine (da-a)379-385
Numero di pagine7
RivistaM.L.T.J. MUSCLES, LIGAMENTS AND TENDONS JOURNAL
Volume9
Stato di pubblicazionePublished - 2019

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Tendons
Transplants
Reconstructive Surgical Procedures

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

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Does the 5-strand-graft have superior biomechanical behaviour than 4-strand-graft during acl reconstruction? / Sanfilippo, Antonino; Camarda, Lawrence; Pitarresi, Giuseppe; Pitarresi; D’Arienzo; D'Arienzo, Antonio; Pavan, Davide; Morello, Federica; Monachino, Francesco.

In: M.L.T.J. MUSCLES, LIGAMENTS AND TENDONS JOURNAL, Vol. 9, 2019, pag. 379-385.

Risultato della ricerca: Article

Sanfilippo, Antonino ; Camarda, Lawrence ; Pitarresi, Giuseppe ; Pitarresi ; D’Arienzo ; D'Arienzo, Antonio ; Pavan, Davide ; Morello, Federica ; Monachino, Francesco. / Does the 5-strand-graft have superior biomechanical behaviour than 4-strand-graft during acl reconstruction?. In: M.L.T.J. MUSCLES, LIGAMENTS AND TENDONS JOURNAL. 2019 ; Vol. 9. pagg. 379-385.
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title = "Does the 5-strand-graft have superior biomechanical behaviour than 4-strand-graft during acl reconstruction?",
abstract = "Purpose. This study aimed to compare the biomechanical proprieties of 4 and 5-strand- grafts.Methods. For the present study, fresh-frozen bovine common digital extensor tendons were used. Tendon grafts were prepared and sized to have a length of almost 27 cm and a cylinder 4 strand diameter of 8 mm. In half of all samples (Group A, n=12,), the graft was formed by 2 bundles duplicated around a metallic rod creating a 4-strand-tendon construct. In the other half of samples (Group B, n= 12,) 5-strand-tendon construct was created duplicating a single tendon around the rod, and tripling the other one. The grafts were preconditioned at 50 N for 10 min, followed by 1,000 cyclic loading between 50 and 250 N. Load-to-failure test was then carried out at a rate of 1 mm/s.Results. No statistically significant differences were found between two groups concern- ing cyclic elongation at the 500th cycle and at the final cycle. An increased stiffness was observed in the Group B during cyclic loads and at pull-out (p<0.05). Significant differ- ences were noted at the ultimate load-to-failure between Group A (1533 ± 454 N) and Group B (1139 ± 276 N) (p< 0.05).Conclusion. This study showed that both graft construct appears to be biomechanical- ly effective in a bovine tendon model. 5-strand-graft showed an increased stiffness and a decreased ultimate load-to-failure comparing to the 4-strand-graft construct. Biomechan- ically, no real benefit could be observed in the clinical setting increasing the numbers of strands used for the ACL reconstructive surgery.",
author = "Antonino Sanfilippo and Lawrence Camarda and Giuseppe Pitarresi and Pitarresi and D’Arienzo and Antonio D'Arienzo and Davide Pavan and Federica Morello and Francesco Monachino",
year = "2019",
language = "English",
volume = "9",
pages = "379--385",
journal = "Muscles, Ligaments and Tendons Journal",
issn = "2240-4554",
publisher = "CIC Edizioni Internazionali",

}

TY - JOUR

T1 - Does the 5-strand-graft have superior biomechanical behaviour than 4-strand-graft during acl reconstruction?

AU - Sanfilippo, Antonino

AU - Camarda, Lawrence

AU - Pitarresi, Giuseppe

AU - Pitarresi, null

AU - D’Arienzo, null

AU - D'Arienzo, Antonio

AU - Pavan, Davide

AU - Morello, Federica

AU - Monachino, Francesco

PY - 2019

Y1 - 2019

N2 - Purpose. This study aimed to compare the biomechanical proprieties of 4 and 5-strand- grafts.Methods. For the present study, fresh-frozen bovine common digital extensor tendons were used. Tendon grafts were prepared and sized to have a length of almost 27 cm and a cylinder 4 strand diameter of 8 mm. In half of all samples (Group A, n=12,), the graft was formed by 2 bundles duplicated around a metallic rod creating a 4-strand-tendon construct. In the other half of samples (Group B, n= 12,) 5-strand-tendon construct was created duplicating a single tendon around the rod, and tripling the other one. The grafts were preconditioned at 50 N for 10 min, followed by 1,000 cyclic loading between 50 and 250 N. Load-to-failure test was then carried out at a rate of 1 mm/s.Results. No statistically significant differences were found between two groups concern- ing cyclic elongation at the 500th cycle and at the final cycle. An increased stiffness was observed in the Group B during cyclic loads and at pull-out (p<0.05). Significant differ- ences were noted at the ultimate load-to-failure between Group A (1533 ± 454 N) and Group B (1139 ± 276 N) (p< 0.05).Conclusion. This study showed that both graft construct appears to be biomechanical- ly effective in a bovine tendon model. 5-strand-graft showed an increased stiffness and a decreased ultimate load-to-failure comparing to the 4-strand-graft construct. Biomechan- ically, no real benefit could be observed in the clinical setting increasing the numbers of strands used for the ACL reconstructive surgery.

AB - Purpose. This study aimed to compare the biomechanical proprieties of 4 and 5-strand- grafts.Methods. For the present study, fresh-frozen bovine common digital extensor tendons were used. Tendon grafts were prepared and sized to have a length of almost 27 cm and a cylinder 4 strand diameter of 8 mm. In half of all samples (Group A, n=12,), the graft was formed by 2 bundles duplicated around a metallic rod creating a 4-strand-tendon construct. In the other half of samples (Group B, n= 12,) 5-strand-tendon construct was created duplicating a single tendon around the rod, and tripling the other one. The grafts were preconditioned at 50 N for 10 min, followed by 1,000 cyclic loading between 50 and 250 N. Load-to-failure test was then carried out at a rate of 1 mm/s.Results. No statistically significant differences were found between two groups concern- ing cyclic elongation at the 500th cycle and at the final cycle. An increased stiffness was observed in the Group B during cyclic loads and at pull-out (p<0.05). Significant differ- ences were noted at the ultimate load-to-failure between Group A (1533 ± 454 N) and Group B (1139 ± 276 N) (p< 0.05).Conclusion. This study showed that both graft construct appears to be biomechanical- ly effective in a bovine tendon model. 5-strand-graft showed an increased stiffness and a decreased ultimate load-to-failure comparing to the 4-strand-graft construct. Biomechan- ically, no real benefit could be observed in the clinical setting increasing the numbers of strands used for the ACL reconstructive surgery.

UR - http://hdl.handle.net/10447/378890

UR - http://www.mltj.online/wp-content/uploads/2019/09/Camarda.pdf

M3 - Article

VL - 9

SP - 379

EP - 385

JO - Muscles, Ligaments and Tendons Journal

JF - Muscles, Ligaments and Tendons Journal

SN - 2240-4554

ER -