Evaluation of 3 Needleless Grasping Suture Techniques for Soft-Tissue Graft Fixation: A Porcine Biomechanical Study

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
Chih-Kai HongWei-Ren Su

Abstract

The purpose of this study was to evaluate the tendon graft holding strength of 3 needleless grasping suture techniques, namely the modified Prusik knot, Wittstein suture loop, and modified rolling hitch. Thirty fresh-frozen porcine flexor profundus tendons were used and randomly divided into 3 groups of 10 specimens. The experimental procedure was designed to assess elongation of the suture-tendon construct across 3 different needleless tendon-grasping techniques. All suture configurations were completed with a multistranded nonabsorbable suture. Each tendon was pre-tensioned to 100 N for 3 cycles, cyclically loaded to 200 N for 200 cycles, and then finally loaded to failure. Elongation, load to failure, and mode of failure for each suture-tendon construct were measured. During cyclic loading, there were no significant differences in elongation for any of the tested suture-tendon constructs (modified rolling hitch, 21.2% ± 9.6%; modified Prusik knot, 21.4% ± 9.9%; and Wittstein suture loop, 26.2% ± 4.5%). Similarly, the failure load and cross-sectional area were not significantly different across all tested suture groups. The modified Prusik knot, Wittstein suture loop, and modified rolling-hitch techniques had equal elongation...Continue Reading

References

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Jan 21, 2012·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Wei-Ren SuChih-Wei Chang
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Aug 16, 2014·Arthroscopy Techniques·Chih-Kai HongWei-Ren Su

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Citations

Aug 9, 2016·Archives of Orthopaedic and Trauma Surgery·Lawrence CamardaMichele D'Arienzo
Nov 9, 2016·Clinical Orthopaedics and Related Research·Chih-Kai HongWei-Ren Su
Sep 3, 2020·Arthroscopy, Sports Medicine, and Rehabilitation·Chih-Kai HongWei-Ren Su

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