TY - JOUR
T1 - In vitro and finite element analysis of a novel rotator cuff fixation technique
AU - Funakoshi, Tadanao
AU - Suenaga, Naoki
AU - Sano, Hirotaka
AU - Oizumi, Naomi
AU - Minami, Akio
N1 - Funding Information:
The FE analysis of this study was performed at the Synergy Center of Tohoku University. The authors wish to acknowledge the help in study design by Kimitaka Fukuda, MD, PhD, and the help in mechanical testing by Dr. Yoshiyuki Hisada and Professor Kazuo Harada. This study was supported by Johnson & Johnson, K.K. Mitek Division, and a grant from the Nakatomi Foundation, Japan.
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2008/11
Y1 - 2008/11
N2 - The purpose of this investigation was to assess the biomechanic strength and stress dispersion at the repair site of surface-holding repair techniques for rotator cuff repair compared to the double-row technique. Eighteen bovine infraspinatus tendons were repaired using 3 different repair techniques: double-row repair, surface-holding repair with transosseous sutures, and surface-holding repair with knotless anchors. Biomechanical testing and two-dimensional finite element analysis were performed. The surface-holding repair with transosseous sutures provided 87.9% more stiffness than the double-row repair. The number of tendon-suture site failures of the surface-holding repair with transosseous sutures was smaller than the other 2 techniques. The finite element analysis showed that the surface-holding repair model had a more dispersing stress pattern compared to a double-row repair model. It suggests that these repair techniques can prevent high stress concentration compared to the double-row repair.
AB - The purpose of this investigation was to assess the biomechanic strength and stress dispersion at the repair site of surface-holding repair techniques for rotator cuff repair compared to the double-row technique. Eighteen bovine infraspinatus tendons were repaired using 3 different repair techniques: double-row repair, surface-holding repair with transosseous sutures, and surface-holding repair with knotless anchors. Biomechanical testing and two-dimensional finite element analysis were performed. The surface-holding repair with transosseous sutures provided 87.9% more stiffness than the double-row repair. The number of tendon-suture site failures of the surface-holding repair with transosseous sutures was smaller than the other 2 techniques. The finite element analysis showed that the surface-holding repair model had a more dispersing stress pattern compared to a double-row repair model. It suggests that these repair techniques can prevent high stress concentration compared to the double-row repair.
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U2 - 10.1016/j.jse.2008.06.002
DO - 10.1016/j.jse.2008.06.002
M3 - Article
C2 - 18823800
AN - SCOPUS:55049116597
SN - 1058-2746
VL - 17
SP - 986
EP - 992
JO - Journal of Shoulder and Elbow Surgery
JF - Journal of Shoulder and Elbow Surgery
IS - 6
ER -