Biocompatibility of new low-cost (α + β)-type Ti-Mo-Fe alloys for long-term implantation

Abdelrhman, Yasser; Gepreel, Mohamed Abdel‐Hady; Kobayashi, Sengo; Okano, Satoshi; Okamoto, Takeaki

doi:10.1016/j.msec.2019.01.133

Cited by 45 publications

(25 citation statements)

References 44 publications

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“…A CoCr-rod with a similar diameter has higher stiffness, yield strength, and rigidity than a Tirod. [46][47][48][49] With increasing diameter, these characteristics of all rods increase. The durability of the CoCr-rod compared to the Ti-rod is not different according to recent studies.…”

Section: B C D E F G a Imentioning

confidence: 99%

The Effect of Rod Pattern, Outrigger, and Multiple Screw-Rod Constructs for Surgical Stabilization of the 3-Column Destabilized Cervical Spine - A Biomechanical Analysis and Introduction of a Novel Technique

et al. 2020

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Anterior-only reconstructions for cervical multilevel corpectomies are prone to fail under continuous mechanical loading. This study sought to define the mechanical characteristics of different constructs in reducing a range of motion (ROM) of the 3-column destabilized cervical spine, including posterior cobalt-chromium (CoCr)-rods, outrigger-rods (OGR), and a novel triple rod construct using lamina screws (6S3R). The clinical implications of biomechanical findings are discussed in depth from the perspective of the challenges surgeons face cervical deformity correction. Methods: Three-column deficient cervical spinal models were produced based on reconstructed computed tomography scans. The corpectomy defect between C3 and C7 end-level vertebrae was restored with anterior titanium (Ti) mesh-cage. The ROM was evaluated in a customized 6-degree of freedom spine tester. Tests were performed with different rod materials (Ti vs. CoCr), varying diameter rods (3.5 mm vs. 4.0 mm), with and without anterior plating, and using different construct patterns: bilateral rod fixation (standard-group), OGRgroup, and 6S3R-Group. Construct stability was expressed in changes and differences of ROM (°). Results: The largest reduction of ROM was noticed in the 6S3R-group compared to the standard-and the OGR-group. All differences observed were emphasized with an increasing number of corpectomy levels and if anterior plating was not added. For all simulated 1-, 2-, and 3-level corpectomy constructs, the OGR-group revealed decreased ROM for all motion directions compared to the standard-group. An increase of construct stiffness was also recorded for increased rod diameter (4.0 mm) and stiffer rod material (CoCr), though these effects lacked behind the more advanced construct pattern. Conclusion: A novel reconstructive technique, the 6S3R-construct, was shown to outperform all other constructs and might resemble a new standard of reference for advanced posterior fixation.

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Section: B C D E F G a Imentioning

confidence: 99%

The Effect of Rod Pattern, Outrigger, and Multiple Screw-Rod Constructs for Surgical Stabilization of the 3-Column Destabilized Cervical Spine - A Biomechanical Analysis and Introduction of a Novel Technique

et al. 2020

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“…The closeness of the corrosion potential value to the positive pole suggest the formation of a protective passive film (stable oxide film). Therefore, the dissolution of metal is suppressed, and the corrosion rate is reduced through the barrier layer formed by the passive film [13,14]. On this basis using 0.5 m H2SO4 solution, the Ti6Al4V alloy clad with 30Co/70Ni at a scan rate of 1.2 m/min possess better corrosion resistance property.…”

Section: Open-circuit Potential (Ocp) Analysismentioning

confidence: 99%

Effect of nickel-based laser coatings on phase composition and corrosion behaviour of titanium alloy for offshore application

Adesina

Oki

Farotade

et al. 2021

Materials Today: Proceedings

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Recent advances in titanium alloy applications in the offshore industry have been realized through the development of laser surface modification technique. The distinctive outcome of this technique has provided increase in the utilization of titanium in offshore drilling risers for special drilling operations and various subsea and tubing applications. In this work, surface mitigation and corrosion degradation of titanium alloy in aggressive sulfuric acid were investigated using electrochemical technique (linear potentiodynamic polarization) while the surface characterization (morphology) and phases of the resultant coatings were analyzed using X-ray diffractometry (XRD) and scanning electron microscopy (SEM). Prior to that, laser surface technique was used to fabricate Nickel-based powder on the substrate (Ti-6Al-4V). Results revealed that laser clad sample with high scan speed was more effective in improving the corrosion resistance compared to low scan speed. The enhanced corrosion resistance with high laser scan speed has been attributed to the presence of hard intermetallic compounds in the metallic coating.

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“…Controlled interstitial element levels are designated as an ELI; hence the designation Ti6Al-4V ELI (15,16). Ti6Al-4V ELI is one of the most widely used titanium alloys in the production of surgical implants (17). A previous study has shown that Ti6AI4V ELI exhibits a number of advantages compared with pure titanium, including higher tensile strength and improved fatigue resistance (14).…”

Section: Introductionmentioning

confidence: 99%

Application of additive manufacturing in customized titanium mandibular implants for patients with oral tumors

Xia

Feng

et al. 2020

Oncol Lett

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Biocompatibility of new low-cost (α + β)-type Ti-Mo-Fe alloys for long-term implantation

Cited by 45 publications

References 44 publications

The Effect of Rod Pattern, Outrigger, and Multiple Screw-Rod Constructs for Surgical Stabilization of the 3-Column Destabilized Cervical Spine - A Biomechanical Analysis and Introduction of a Novel Technique

The Effect of Rod Pattern, Outrigger, and Multiple Screw-Rod Constructs for Surgical Stabilization of the 3-Column Destabilized Cervical Spine - A Biomechanical Analysis and Introduction of a Novel Technique

Effect of nickel-based laser coatings on phase composition and corrosion behaviour of titanium alloy for offshore application

Application of additive manufacturing in customized titanium mandibular implants for patients with oral tumors

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Biocompatibility of new low-cost (α + β)-type Ti-Mo-Fe alloys for long-term implantation

Cited by 45 publications

References 44 publications

The Effect of Rod Pattern, Outrigger, and Multiple Screw-Rod Constructs for Surgical Stabilization of the 3-Column Destabilized Cervical Spine - A Biomechanical Analysis and Introduction of a Novel Technique

The Effect of Rod Pattern, Outrigger, and Multiple Screw-Rod Constructs for Surgical Stabilization of the 3-Column Destabilized Cervical Spine - A Biomechanical Analysis and Introduction of a Novel Technique

Effect of nickel-based laser coatings on phase composition and corrosion behaviour of titanium alloy for offshore application

Application of additive manufacturing in customized titanium mandibular implants for patients with oral tumors

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Product

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Biocompatibility of new low-cost (α + β)-type Ti-Mo-Fe alloys for long-term implantation