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Mechanical Analysis of Twelve Toggle Suture Constructs for Stabilization of Coxofemoral Luxations
Author(s) -
Jha Shantibhushan,
Kowaleski Michael P.
Publication year - 2012
Publication title -
veterinary surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 79
eISSN - 1532-950X
pISSN - 0161-3499
DOI - 10.1111/j.1532-950x.2012.01028.x
Subject(s) - medicine , fibrous joint , orthodontics , breakage , kirschner wire , universal testing machine , materials testing , surgery , composite material , ultimate tensile strength , materials science , prosthesis
Objective To compare the mechanical performance of 12 commonly used toggle suture constructs ( TSC s). Study Design In vitro biomechanical study. Sample Population Toggle suture constructs (n = 136). Methods TSC evaluated included #5 O rtho F iber, double strand of 5 Ethibond sutures (polyethylene terephthalate suture), 80 lb monofilament nylon, or #5 FiberWire, combined with Piermattei toggle (3/32" Steinmann pin), modified Piermattei toggle (0.045" Kirschner wire), and 1/8" Securos toggle rod for a total of 12 test groups. Acute and cyclic testing were performed using a servohydraulic testing machine and load at failure and cycles to failure were determined. Results In acute testing, modified P iermattei TSC s failed by toggle deformation and P iermattei and S ecuros TSC s failed by suture breakage at the eyelet. Mean failure load of P iermattei‐#5 O rtho F iber TSC (1416 ± 74 N) was significantly greater than that of P iermattei‐#5 E thibond (883 ± 38 N); both were significantly greater than all other TSC s. Only the P iermattei TSC with #5 O rtho F iber, #5 E thibond, and 80 lb monofilament nylon did not fail during cyclic testing. Conclusion A combination of the P iermattei toggle and #5 O rtho F iber or #5 E thibond achieved a higher load at failure than all other groups, and resisted the greatest number of cycles to failure. Long‐term mechanical testing of these TSC s are warranted to further define their durability.