A Novel Spine Fixation System Made Entirely of Carbon-Fiber-Reinforced PEEK Composite: An In Vitro Mechanical Evaluation.
Journal
Advances in orthopedics
ISSN: 2090-3464
Titre abrégé: Adv Orthop
Pays: Egypt
ID NLM: 101565129
Informations de publication
Date de publication:
2020
2020
Historique:
received:
26
09
2019
revised:
31
03
2020
accepted:
27
04
2020
entrez:
23
6
2020
pubmed:
23
6
2020
medline:
23
6
2020
Statut:
epublish
Résumé
Semirigid spine fixation systems utilizing nonmetallic materials have emerged as a promising innovation to overcome the inherent disadvantages of metal instrumentation in spine surgery. This study tests the mechanical properties of a novel spine fixation system made entirely of carbon-fiber-reinforced PEEK (CFR-PEEK) composite material (CarboClear System, CarboFix Orthopedics Ltd., Israel). An in vitro mechanical evaluation of the CFR-PEEK CarboClear system was conducted in compliance with the American Society for Testing and Materials (ASTM) F1717, F2193, and F543 standards. The mean bending yield load, bending ultimate load, and bending stiffness of the construct were 322 N, 363 N, and 45 N/mm, respectively. All tested samples completed 5 × 10 The CarboClear Pedicle Screw System has mechanical properties comparable to those of other commonly used titanium-made systems, with superior fatigue properties. The fatigue resistance, modulus of elasticity which is very similar to that of bone, radiolucency, and CT/MRI artifact-free feature of this spine fixation system made entirely of CFR-PEEK may offer advantages over traditional spine fixation systems made of metal alloys.
Sections du résumé
BACKGROUND
BACKGROUND
Semirigid spine fixation systems utilizing nonmetallic materials have emerged as a promising innovation to overcome the inherent disadvantages of metal instrumentation in spine surgery. This study tests the mechanical properties of a novel spine fixation system made entirely of carbon-fiber-reinforced PEEK (CFR-PEEK) composite material (CarboClear System, CarboFix Orthopedics Ltd., Israel).
METHODS
METHODS
An in vitro mechanical evaluation of the CFR-PEEK CarboClear system was conducted in compliance with the American Society for Testing and Materials (ASTM) F1717, F2193, and F543 standards.
RESULTS
RESULTS
The mean bending yield load, bending ultimate load, and bending stiffness of the construct were 322 N, 363 N, and 45 N/mm, respectively. All tested samples completed 5 × 10
CONCLUSION
CONCLUSIONS
The CarboClear Pedicle Screw System has mechanical properties comparable to those of other commonly used titanium-made systems, with superior fatigue properties. The fatigue resistance, modulus of elasticity which is very similar to that of bone, radiolucency, and CT/MRI artifact-free feature of this spine fixation system made entirely of CFR-PEEK may offer advantages over traditional spine fixation systems made of metal alloys.
Identifiants
pubmed: 32566313
doi: 10.1155/2020/4796136
pmc: PMC7301173
doi:
Types de publication
Journal Article
Langues
eng
Pagination
4796136Informations de copyright
Copyright © 2020 Ofir Uri et al.
Déclaration de conflit d'intérêts
The authors declare that there are no conflicts of interest regarding the publication of this paper.
Références
Eur Spine J. 2015 May;24(5):1005-16
pubmed: 25616349
Eur Spine J. 2018 Apr;27(4):874-881
pubmed: 28815357
Med Eng Phys. 2011 May;33(4):490-6
pubmed: 21177135
BMC Musculoskelet Disord. 2016 Mar 22;17:134
pubmed: 27005301
Clin Med Insights Arthritis Musculoskelet Disord. 2015 Feb 23;8:33-45
pubmed: 25780341
BMC Musculoskelet Disord. 2013 Sep 18;14:269
pubmed: 24047109
Spine J. 2013 Oct;13(10):1350-8
pubmed: 23773430
J Biomech Eng. 2011 Aug;133(8):081009
pubmed: 21950902
Eur Spine J. 1997;6(1):2-18
pubmed: 9093822
Eur Spine J. 2016 Sep;25(9):2909-18
pubmed: 27236658
J Spine Surg. 2017 Sep;3(3):323-329
pubmed: 29057339
Spine (Phila Pa 1976). 2004 Feb 15;29(4):455-63; discussion Z5
pubmed: 15094543
J Bone Joint Surg Am. 2006 Apr;88 Suppl 2:103-9
pubmed: 16595454
J Orthop Res. 2005 Jul;23(4):788-94
pubmed: 16022991
Spine J. 2009 Mar;9(3):263-7
pubmed: 18838341
Spine (Phila Pa 1976). 1994 Aug 1;19(15):1664-73
pubmed: 7973958
Neurosurg Focus. 2007 Jan 15;22(1):E11
pubmed: 17608332
Proc Inst Mech Eng H. 2003;217(6):503-8
pubmed: 14702987
Orthopedics. 2014 Dec;37(12):825-30
pubmed: 25437074
J Spinal Disord. 1996 Oct;9(5):392-400
pubmed: 8938607
Spine (Phila Pa 1976). 2004 Feb 15;29(4):367-75
pubmed: 15094532