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Archives of Orthopaedic and Trauma Surgery

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01-03-2010 | Arthroscopy and Sports Medicine

Biomechanical comparison of screw-in suture anchor–suture combinations used for Bankart repair

Authors: Brad S. Sparks, John Nyland, Akbar Nawab, Ethan Blackburn, Ryan Krupp, David N. M. Caborn

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 3/2010

Abstract

Introduction

Bankart repair laxity may contribute to pathologic joint instability. This biomechanical study compared two screw-in suture anchor–suture combinations under tensile loads.

Methods

Twelve pairs of scapulae were implanted with either a 3 mm diameter, 14 mm long poly-l/d-lactide suture anchor with a suture eyelet (Group 1) or a 3.1 mm diameter, 11 mm long polylactide suture anchor with a molded eyelet (Group 2). Constructs were cyclically loaded between 25 and 50 N with a 25 N load increase every 25 cycles.

Results

Group 2 displayed greater displacement at failure, had more specimens with ≥2 mm displacement by the 50 N interval (P = 0.014), and had displaced more by 100 N (P ≤ 0.046). Group 1 displayed a stronger load–displacement at failure relationship than Group 2 (r ² = 0.67 vs. r ² = 0.37).

Conclusion

Construct differences may influence decisions regarding the required number of suture anchor–suture loops, the rehabilitation timetable, and the timing of return to unrestricted activities.

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Title: Biomechanical comparison of screw-in suture anchor–suture combinations used for Bankart repair
Authors: Brad S. Sparks
John Nyland
Akbar Nawab
Ethan Blackburn
Ryan Krupp
David N. M. Caborn
Publication date: 01-03-2010
Publisher: Springer-Verlag
Published in: Archives of Orthopaedic and Trauma Surgery / Issue 3/2010
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI: https://doi.org/10.1007/s00402-009-0926-5

At a glance: The STEP trials

Springer Medicine

Biomechanical comparison of screw-in suture anchor–suture combinations used for Bankart repair

Abstract

Introduction

Methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Introduction

Methods

Results

Conclusion

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