RETRACTED ARTICLE: Magnetic resonance imaging evaluation of intervertebral test spacers: an experimental comparison of magnesium versus titanium and carbon fiber reinforced polymers as biomaterials

Autor: Gottfried Buchhorn, Thorsten Ernstberger, Gabert Heidrich
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Polymers
Swine
medicine.medical_treatment
Magnesium alloys
Innovative biomaterials
Interbody test implants
MRI artifacting
chemistry.chemical_element
03 medical and health sciences
0302 clinical medicine
Coated Materials
Biocompatible
Carbon Fiber
Alloys
Animals
Medicine
Magnesium
Medicine(all)
Bioprosthesis
Titanium
Medicine & Public Health
General Practice / Family Medicine
Medicine/Public Health
general
chemistry.chemical_classification
030222 orthopedics
medicine.diagnostic_test
business.industry
food and beverages
Biomaterial
Magnetic resonance imaging
General Medicine
Polymer
Biocompatible material
equipment and supplies
Magnetic Resonance Imaging
Carbon
Spine
Retraction
Spinal Fusion
Retraction Note
chemistry
Intervertebral Disc Displacement
Spinal fusion
business
Plastics
030217 neurology & neurosurgery
Biomedical engineering
Zdroj: Irish Journal of Medical Science
ISSN: 1863-4362
0021-1265
Popis: Introduction Intervertebral spacers are made of different materials, which can affect the postfusion magnetic resonance imaging (MRI) scans. Susceptibility artifacts, especially for metallic implants, can decrease the image quality. This study aimed to determine whether magnesium as a lightweight and biocompatible metal is suitable as a biomaterial for spinal implants based on its MRI artifacting behavior. Materials and methods To compare artifacting behaviors, we implanted into one porcine cadaveric spine different test spacers made of magnesium, titanium, and CFRP. All test spacers were scanned using two T1-TSE MRI sequences. The artifact dimensions were traced on all scans and statistically analyzed. Results The total artifact volume and median artifact area of the titanium spacers were statistically significantly larger than magnesium spacers (P 0.05). Conclusion Our results suggest that spinal implants made with magnesium alloys will behave more like CFRP devices in MRI scans.
Databáze: OpenAIRE
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