scholarly journals In vivo implant fixation of carbon fiber-reinforced PEEK hip prostheses in an ovine model

2012 ◽  
Vol 31 (3) ◽  
pp. 485-492 ◽  
Author(s):  
Ichiro Nakahara ◽  
Masaki Takao ◽  
Shunichi Bandoh ◽  
Nicky Bertollo ◽  
William R Walsh ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Fiber Reinforced ◽  
Ovine Model ◽  
Implant Fixation ◽  
Hip Prostheses ◽  
Carbon Fiber Reinforced

scholarly journals Analysis of Carbon Fiber Reinforced PEEK Hinge Mechanism Articulation Components in a Rotating Hinge Knee Design: A Comparison of In Vitro and Retrieval Findings

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Ronja A. Schierjott ◽  
Alexander Giurea ◽  
Hans-Joachim Neuhaus ◽  
Jens Schwiesau ◽  
Andreas M. Pfaff ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Complex Loading ◽  
Fiber Reinforced ◽  
Promising Alternative ◽  
Rotating Hinge ◽  
Carbon Fiber Reinforced ◽  
Wear Damage ◽  
Rotating Hinge Knee

Carbon fiber reinforced poly-ether-ether-ketone (CFR-PEEK) represents a promising alternative material for bushings in total knee replacements, after early clinical failures of polyethylene in this application. The objective of the present study was to evaluate the damage modes and the extent of damage observed on CFR-PEEK hinge mechanism articulation components after in vivo service in a rotating hinge knee (RHK) system and to compare the results with corresponding components subjected to in vitro wear tests. Key question was if there were any similarities or differences between in vivo and in vitro damage characteristics. Twelve retrieved RHK systems after an average of 34.9 months in vivo underwent wear damage analysis with focus on the four integrated CFR-PEEK components and distinction between different damage modes and classification with a scoring system. The analysis included visual examination, scanning electron microscopy, and energy dispersive X-ray spectroscopy, as well as surface roughness and profile measurements. The main wear damage modes were comparable between retrieved and in vitro specimens (n=3), whereby the size of affected area on the retrieved components showed a higher variation. Overall, the retrieved specimens seemed to be slightly heavier damaged which was probably attributable to the more complex loading and kinematic conditions in vivo.

scholarly journals Interfacial shear strength of bioactive-coated carbon fiber reinforced polyetheretherketone after in vivo implantation

2012 ◽  
Vol 30 (10) ◽  
pp. 1618-1625 ◽  
Author(s):  
Ichiro Nakahara ◽  
Masaki Takao ◽  
Tomoyo Goto ◽  
Chikara Ohtsuki ◽  
Shigeru Hibino ◽  
...  
Keyword(s):  
Shear Strength ◽  
Carbon Fiber ◽  
Interfacial Shear Strength ◽  
Interfacial Shear ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced ◽  
Coated Carbon

Inflammatory response against different carbon fiber-reinforced PEEK wear particles compared with UHMWPE in vivo

2010 ◽  
Vol 6 (11) ◽  
pp. 4296-4304 ◽  
Author(s):  
Sandra Utzschneider ◽  
Fabian Becker ◽  
Thomas M. Grupp ◽  
Birte Sievers ◽  
Alexander Paulus ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Inflammatory Response ◽  
Wear Particles ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Novel Surface Modifications of Carbon Fiber-Reinforced Polyetheretherketone Hip Stem in an Ovine Model

2011 ◽  
Vol 36 (1) ◽  
pp. 62-70 ◽  
Author(s):  
Ichiro Nakahara ◽  
Masaki Takao ◽  
Shunichi Bandoh ◽  
Nicky Bertollo ◽  
William R. Walsh ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Surface Modifications ◽  
Fiber Reinforced ◽  
Ovine Model ◽  
Carbon Fiber Reinforced

Corrigendum to “Inflammatory response against different carbon fiber-reinforced PEEK wear particles compared with UHMWPE in vivo” [Acta Biomaterialia 6 (2010) 4296–4304]

2012 ◽  
Vol 8 (3) ◽  
pp. 1396-1398 ◽  
Author(s):  
Sandra Utzschneider ◽  
Fabian Becker ◽  
Thomas M. Grupp ◽  
Birte Sievers ◽  
Alexander Paulus ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Inflammatory Response ◽  
Wear Particles ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced

Effects of high pressure on the crystallization of carbon fiber reinforced polyetheretherketone (CF/PEEK) laminate composites

1990 ◽  
Vol 48 (4) ◽  
pp. 876-877
Author(s):  
Hong-Ming Lin ◽  
C. H. Liu ◽  
R. F. Lee
Keyword(s):  
High Pressure ◽  
Carbon Fiber ◽  
Sample Surface ◽  
High Yield ◽  
Fiber Reinforced ◽  
Laminate Composites ◽  
Peek Composite ◽  
Continuous Carbon Fiber ◽  
Carbon Fiber Reinforced

Polyetheretherketone (PEEK) is a crystallizable thermoplastic used as composite matrix materials in application which requires high yield stress, high toughness, long term high temperature service, and resistance to solvent and radiation. There have been several reports on the crystallization behavior of neat PEEK and of CF/PEEK composite. Other reports discussed the effects of crystallization on the mechanical properties of PEEK and CF/PEEK composites. However, these reports were all concerned with the crystallization or melting processes at or close to atmospheric pressure. Thus, the effects of high pressure on the crystallization of CF/PEEK will be examined in this study.The continuous carbon fiber reinforced PEEK (CF/PEEK) laminate composite with 68 wt.% of fibers was obtained from Imperial Chemical Industry (ICI). For the high pressure experiments, HIP was used to keep these samples under 1000, 1500 or 2000 atm. Then the samples were slowly cooled from 420 °C to 60 °C in the cooling rate about 1 - 2 degree per minute to induce high pressure crystallization. After the high pressure treatment, the samples were scanned in regular DSC to study the crystallinity and the melting temperature. Following the regular polishing, etching, and gold coating of the sample surface, the scanning electron microscope (SEM) was used to image the microstructure of the crystals. Also the samples about 25mmx5mmx3mm were prepared for the 3-point bending tests.

Sign in / Sign up

Export Citation Format

Share Document