The failure mode of two reabsorbable fixation systems: Swivelock with Fibertape versus Bio-Corkscrew with Fiberwire in bovine rotator cuff |
| |
| Authors: | Angelo De Carli Riccardo Maria Lanzetti Edoardo Monaco Luca Labianca Luigi Mossa Andrea Feretti |
| |
| Institution: | 1. University of Texas Health Science Center at San Antonio School of Medicine, San Antonio, Texas, U.S.A.;2. Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan;3. Department of Orthopaedic Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheung Kung University, Tainan, Taiwan;4. Medical Device Innovation Center, National Cheng Kung University, Tainan, Taiwan;1. Department of Orthopaedic Surgery, Stanford University, Stanford, California, U.S.A.;2. Rambam Medical Centre, Haifa, Israel;3. Department of Orthopedic Surgery, Clinica Las Condes, Santiago, Chile;4. Hip Surgery Unit, Hospital Militar, Santiago, Chile;1. Clinique Drouot, Paris, France;2. Equipe Biomécanique et Remodelage Osseux (EPBRO), Arts et Métiers ParisTech, Paris, France;3. Clinique des Maussins, Groupe Maussins, Paris, France;4. UR4-UPMC; Clinique des Maussins, Groupe Maussins, Paris, France;1. Fowler Kennedy Sports Medicine Clinic, 3M Center, Western University, London Ontario, Canada;2. Lawson Health Research Institute, Mechanical and Materials Engineering, Western University, London Ontario, Canada;1. Plano Orthopedic Sports Medicine and Spine Center, Plano, Texas, U.S.A.;2. DePuy Synthes Mitek Sports Medicine, Raynham, Massachusetts, U.S.A. |
| |
| Abstract: | BackgroundDespite technical advances in rotator cuff surgery, recurrent or persistent defects in the repaired tendon continue to occur. The improved strength of sutures and suture anchors has shown that the most common site of failure is the suture–tendon interface. The purpose of this study was to compare two different types of repair under both cyclic and load-to-failure conditions. The hypothesis is that the use of a fixation system with knotless anchor and taped suture results in better biomechanical performance, under both cyclic and load-to-failure conditions.MethodsThirty bovine shoulder specimens were randomly assigned to two group tests: the Swivelock 5-mm anchor with Fibertape (Group A) and the Bio-Corkscrew 5 mm with Fiberwire (Group B). We simulated the reconstruction of a rotator cuff tear with a single-row technique, performing a tenodesis with types A and B fixation. Each specimen underwent cyclic testing from 5 to 30 N for 30 cycles, followed by load-to-failure testing, in order to calculate the ultimate failure load (UFL).ResultsLoad-to-failure tests revealed a significantly higher UFL in Group A than in Group B. Wire fixing failed at the anchor loop whereas tape fixing failed at the sutures, suture–tendon interface, and anchors. Cyclic testing revealed no significantly greater slippage between the two groups. Stiffness values were not statistically significantly different. In all cases, tendons remained intact until the end of the cyclic testing.ConclusionsThe tape structure is biomechanically stronger than the wire structure. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect SpringerLink 等数据库收录！ |
|
