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Suture anchor fixation strength in the Latarjet procedure: a biomechanical study in cadavers

  • Behzad Saleky
  • Onur Hapa
  • Yagmur IsinEmail author
  • Mustafa Güvençer
  • Hasan Havıtçıoğlu
  • Bora Uzun
Original Article • SHOULDER - BIOMECHANICS
  • 88 Downloads

Abstract

Background

The use of metallic screws for graft fixation during the Latarjet procedure is not devoid of complications. The purpose of the present cadaver study was to determine the initial strength of coracoid graft fixation using suture anchors and compare it to that of the traditional screw fixation of the graft using a fresh frozen human shoulder cadaver model.

Materials and methods

Twelve unpaired fresh frozen cadaver shoulders were utilized. In the first group, suture anchor fixation of the graft was used, while 3.75-mm cannulated screws were used in the second group. The specimens were then cyclically loaded from 5 to 150 N at a speed of 0.05 mm/s for 100 cycles. After cyclic loading, each specimen was then loaded at a constant rate of 0.5 mm/s until 7 mm of displacement. Cyclic elongation, peak-to-peak displacement, stiffness and maximum load were measured.

Results

There were no significant differences between the traditional screw fixation and fixation using suture anchors in elongation, peak-to-peak displacement, stiffness and maximum load.

Conclusions

In this study, traditional screw fixation and fixation using suture anchors did not significantly affect biomechanical performance in a classic Latarjet procedure.

Keywords

Shoulder instability Latarjet procedure Screw fixation Suture anchor fixation 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in the studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Copyright information

© Springer-Verlag France SAS, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Orthopaedics and TraumatologyDokuz Eylul UniversityIzmirTurkey
  2. 2.Department of AnatomyDokuz Eylul UniversityIzmirTurkey
  3. 3.Department of Biomechanics, Health Science InstituteDokuz Eylul UniversityIzmirTurkey

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