Mechanical evaluation of a novel angle-stable interlocking nail in a gap fracture model.
Journal
Veterinary surgery : VS
ISSN: 1532-950X
Titre abrégé: Vet Surg
Pays: United States
ID NLM: 8113214
Informations de publication
Date de publication:
Nov 2022
Nov 2022
Historique:
revised:
05
03
2022
received:
26
07
2021
accepted:
14
05
2022
pubmed:
9
6
2022
medline:
26
10
2022
entrez:
8
6
2022
Statut:
ppublish
Résumé
To describe the mechanical characteristics of a novel angle-stable interlocking nail (NAS-ILN) and compare them to those of a locking compression plate (LCP) by using a gap-fracture model. Experimental study. Synthetic bone models. Synthetic bone models simulating a 50 mm diaphyseal comminuted canine tibial fracture were treated with either a novel angle-stable interlocking nail (NAS-ILN) or a locking compression plate (LCP). Maximal axial deformation and load to failure in compression and 4-point bending, as well as maximal angular deformation, slack, and torque to failure in torsion, were statistically compared (P < .05). In compression, the maximal axial deformation was lower for NAS-ILN (0.11 mm ± 0.03) than for LCP (1.10 mm ± 0.22) (P < .0001). The ultimate load to failure was higher for NAS-ILN (803.58 N ± 29.52) than for LCP (328.40 N ± 11.01) (P < .0001). In torsion, the maximal angular deformation did not differ between NAS-ILN (22.79° ± 1.48) and LCP (24.36° ± 1.45) (P = .09). The ultimate torque to failure was higher for NAS-ILN (22.45 Nm ± 0.24) than for LCP (19.10 Nm ± 1.36) (P = .001). No slack was observed with NAS-ILN. In 4-point bending, the maximal axial deformation was lower for NAS-ILN (3.19 mm ± 0.49) than for LCP (4.17 mm ± 0.34) (P = .003). The ultimate bending moment was higher for NAS-ILN (25.73 Nm, IQR [23.54-26.86] Nm) than for LCP (16.29 Nm, IQR [15.66-16.47] Nm) (P = .002). The NAS-ILN showed greater stiffness in compression and 4-point bending, and a greater resistance to failure in compression, torsion, and 4-point bending, than LCP. Based on these results, NAS-ILNs could be considered as alternative implants for the stabilization of comminuted fractures.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1247-1256Informations de copyright
© 2022 American College of Veterinary Surgeons.
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