Features of human autologous hamstring graft elongation after pre-tensioning in anterior cruciate ligament reconstruction

Masataka Fujii, Takayuki Furumatsu, Shinichi Miyazawa, Takaaki Tanaka, Hiroto Inoue, Yuya Kodama, Kenji Masuda, Noritaka Seno, Toshihumi Ozaki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Purpose: Precise pre-tensioning protocol of the graft has not been determined in anterior cruciate ligament (ACL) reconstruction. The aims of this study are to measure the human autologous graft elongation, and to reveal what portion of the graft elongated greater after pre-tensioning in ACL reconstruction. Methods: Twenty-four hamstring tendon grafts which were harvested from patients were included. A continuous load of 150 N was applied to the graft twice for 30 seconds each (150 N-1 minute), and the same loading was repeatedly applied (150 N-2 minute). The amount of elongation of the tendon portion (Length T) and the stitched portion (Length S) were measured after each pre-tensioning. Results: Length S gradually increased by 1.57 ± 0.67 mm after the 150 N-1 minute pre-tensioning and by 2.12 ± 0.76 mm after the 150 N-2 minute pre-tensioning, respectively. Length T was not significantly elongated after 150 N-1 min (p = 0.66) and 150 N-2 min (p = 0.59). Conclusions: Graft elongation of the approximately 2 mm was observed, particularly in the stitched portion. It is necessary for a surgeon to focus on careful removal of slack from each stitch during suturing.

Original languageEnglish
Pages (from-to)2553-2558
Number of pages6
JournalInternational Orthopaedics
Volume40
Issue number12
DOIs
Publication statusPublished - Dec 1 2016

Fingerprint

Anterior Cruciate Ligament Reconstruction
Transplants
Tendons

Keywords

  • Anterior cruciate ligament
  • Graft elongation
  • Hamstring tendon
  • Pretensioning

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Features of human autologous hamstring graft elongation after pre-tensioning in anterior cruciate ligament reconstruction. / Fujii, Masataka; Furumatsu, Takayuki; Miyazawa, Shinichi; Tanaka, Takaaki; Inoue, Hiroto; Kodama, Yuya; Masuda, Kenji; Seno, Noritaka; Ozaki, Toshihumi.

In: International Orthopaedics, Vol. 40, No. 12, 01.12.2016, p. 2553-2558.

Research output: Contribution to journalArticle

Fujii, Masataka ; Furumatsu, Takayuki ; Miyazawa, Shinichi ; Tanaka, Takaaki ; Inoue, Hiroto ; Kodama, Yuya ; Masuda, Kenji ; Seno, Noritaka ; Ozaki, Toshihumi. / Features of human autologous hamstring graft elongation after pre-tensioning in anterior cruciate ligament reconstruction. In: International Orthopaedics. 2016 ; Vol. 40, No. 12. pp. 2553-2558.
@article{c11c571ccd354c35978fa838b41171e4,
title = "Features of human autologous hamstring graft elongation after pre-tensioning in anterior cruciate ligament reconstruction",
abstract = "Purpose: Precise pre-tensioning protocol of the graft has not been determined in anterior cruciate ligament (ACL) reconstruction. The aims of this study are to measure the human autologous graft elongation, and to reveal what portion of the graft elongated greater after pre-tensioning in ACL reconstruction. Methods: Twenty-four hamstring tendon grafts which were harvested from patients were included. A continuous load of 150 N was applied to the graft twice for 30 seconds each (150 N-1 minute), and the same loading was repeatedly applied (150 N-2 minute). The amount of elongation of the tendon portion (Length T) and the stitched portion (Length S) were measured after each pre-tensioning. Results: Length S gradually increased by 1.57 ± 0.67 mm after the 150 N-1 minute pre-tensioning and by 2.12 ± 0.76 mm after the 150 N-2 minute pre-tensioning, respectively. Length T was not significantly elongated after 150 N-1 min (p = 0.66) and 150 N-2 min (p = 0.59). Conclusions: Graft elongation of the approximately 2 mm was observed, particularly in the stitched portion. It is necessary for a surgeon to focus on careful removal of slack from each stitch during suturing.",
keywords = "Anterior cruciate ligament, Graft elongation, Hamstring tendon, Pretensioning",
author = "Masataka Fujii and Takayuki Furumatsu and Shinichi Miyazawa and Takaaki Tanaka and Hiroto Inoue and Yuya Kodama and Kenji Masuda and Noritaka Seno and Toshihumi Ozaki",
year = "2016",
month = "12",
day = "1",
doi = "10.1007/s00264-016-3298-9",
language = "English",
volume = "40",
pages = "2553--2558",
journal = "International Orthopaedics",
issn = "0341-2695",
publisher = "Springer Verlag",
number = "12",

}

TY - JOUR

T1 - Features of human autologous hamstring graft elongation after pre-tensioning in anterior cruciate ligament reconstruction

AU - Fujii, Masataka

AU - Furumatsu, Takayuki

AU - Miyazawa, Shinichi

AU - Tanaka, Takaaki

AU - Inoue, Hiroto

AU - Kodama, Yuya

AU - Masuda, Kenji

AU - Seno, Noritaka

AU - Ozaki, Toshihumi

PY - 2016/12/1

Y1 - 2016/12/1

N2 - Purpose: Precise pre-tensioning protocol of the graft has not been determined in anterior cruciate ligament (ACL) reconstruction. The aims of this study are to measure the human autologous graft elongation, and to reveal what portion of the graft elongated greater after pre-tensioning in ACL reconstruction. Methods: Twenty-four hamstring tendon grafts which were harvested from patients were included. A continuous load of 150 N was applied to the graft twice for 30 seconds each (150 N-1 minute), and the same loading was repeatedly applied (150 N-2 minute). The amount of elongation of the tendon portion (Length T) and the stitched portion (Length S) were measured after each pre-tensioning. Results: Length S gradually increased by 1.57 ± 0.67 mm after the 150 N-1 minute pre-tensioning and by 2.12 ± 0.76 mm after the 150 N-2 minute pre-tensioning, respectively. Length T was not significantly elongated after 150 N-1 min (p = 0.66) and 150 N-2 min (p = 0.59). Conclusions: Graft elongation of the approximately 2 mm was observed, particularly in the stitched portion. It is necessary for a surgeon to focus on careful removal of slack from each stitch during suturing.

AB - Purpose: Precise pre-tensioning protocol of the graft has not been determined in anterior cruciate ligament (ACL) reconstruction. The aims of this study are to measure the human autologous graft elongation, and to reveal what portion of the graft elongated greater after pre-tensioning in ACL reconstruction. Methods: Twenty-four hamstring tendon grafts which were harvested from patients were included. A continuous load of 150 N was applied to the graft twice for 30 seconds each (150 N-1 minute), and the same loading was repeatedly applied (150 N-2 minute). The amount of elongation of the tendon portion (Length T) and the stitched portion (Length S) were measured after each pre-tensioning. Results: Length S gradually increased by 1.57 ± 0.67 mm after the 150 N-1 minute pre-tensioning and by 2.12 ± 0.76 mm after the 150 N-2 minute pre-tensioning, respectively. Length T was not significantly elongated after 150 N-1 min (p = 0.66) and 150 N-2 min (p = 0.59). Conclusions: Graft elongation of the approximately 2 mm was observed, particularly in the stitched portion. It is necessary for a surgeon to focus on careful removal of slack from each stitch during suturing.

KW - Anterior cruciate ligament

KW - Graft elongation

KW - Hamstring tendon

KW - Pretensioning

UR - http://www.scopus.com/inward/record.url?scp=84989204661&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84989204661&partnerID=8YFLogxK

U2 - 10.1007/s00264-016-3298-9

DO - 10.1007/s00264-016-3298-9

M3 - Article

C2 - 27695924

AN - SCOPUS:84989204661

VL - 40

SP - 2553

EP - 2558

JO - International Orthopaedics

JF - International Orthopaedics

SN - 0341-2695

IS - 12

ER -