Biomechanical characteristics of rib fracture fixation systems.
Biomechanics
Fixation system
Implant
Rib fracture
Surgical stabilization of rib fractures
Journal
Clinical biomechanics (Bristol, Avon)
ISSN: 1879-1271
Titre abrégé: Clin Biomech (Bristol, Avon)
Pays: England
ID NLM: 8611877
Informations de publication
Date de publication:
02 2023
02 2023
Historique:
received:
13
10
2022
revised:
20
12
2022
accepted:
02
01
2023
pubmed:
10
1
2023
medline:
3
3
2023
entrez:
9
1
2023
Statut:
ppublish
Résumé
The primary aim of this study was to determine and compare the biomechanical properties of a fractured or intact rib after implant fixation on an embalmed thorax. Five systems were fixated on the bilateral fractured or intact (randomly allocated) 6th to 10th rib of five post-mortem embalmed human specimens. Each rib underwent a four-point bending test to determine the bending structural stiffness (Newton per m As compared to a non-fixated intact rib, the relative difference in stiffness of a fixated intact rib ranged from -0.14 (standard deviation [SD], 0.10) to 0.53 (SD 0.35) and for a fixated fractured rib from -0.88 (SD 0.08) to 0.17 (SD 0.50). The most common failure mode was a new fracture at the most anterior drill hole for the plate and screw systems and a new fracture within the anterior portion of the implant for the clamping systems. The current fixation systems differ in their design, mode of action, and biomechanical properties. Differences in biomechanical properties such as stiffness and load to failure especially apply to fractured ribs. Insight in the differences between the systems might guide more specific implant selection and increase the surgeon's awareness for localizing hardware complaints or failure.
Sections du résumé
BACKGROUND
The primary aim of this study was to determine and compare the biomechanical properties of a fractured or intact rib after implant fixation on an embalmed thorax.
METHODS
Five systems were fixated on the bilateral fractured or intact (randomly allocated) 6th to 10th rib of five post-mortem embalmed human specimens. Each rib underwent a four-point bending test to determine the bending structural stiffness (Newton per m
FINDINGS
As compared to a non-fixated intact rib, the relative difference in stiffness of a fixated intact rib ranged from -0.14 (standard deviation [SD], 0.10) to 0.53 (SD 0.35) and for a fixated fractured rib from -0.88 (SD 0.08) to 0.17 (SD 0.50). The most common failure mode was a new fracture at the most anterior drill hole for the plate and screw systems and a new fracture within the anterior portion of the implant for the clamping systems.
INTERPRETATION
The current fixation systems differ in their design, mode of action, and biomechanical properties. Differences in biomechanical properties such as stiffness and load to failure especially apply to fractured ribs. Insight in the differences between the systems might guide more specific implant selection and increase the surgeon's awareness for localizing hardware complaints or failure.
Identifiants
pubmed: 36623327
pii: S0268-0033(23)00001-3
doi: 10.1016/j.clinbiomech.2023.105870
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
105870Informations de copyright
Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: EMM Van Lieshout reports a relationship with Netherlands Organisation for Health Research and Development that includes: funding grants. MME Wijffels reports a relationship with Netherlands Organisation for Health Research and Development that includes: funding grants. EMM Van Lieshout reports a relationship with DePuy Synthes that includes: funding grants. MME Wijffels reports a relationship with DePuy Synthes that includes: funding grants. EMM Van Lieshout reports a relationship with Coolsingel Foundation that includes: funding grants. MME Wijffels reports a relationship with Coolsingel Foundation that includes: funding grants. EMM Van Lieshout reports a relationship with Osteosynthesis and Trauma Care Foundation that includes: funding grants. MME Wijffels reports a relationship with Osteosynthesis and Trauma Care Foundation that includes: funding grants.