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2009 | 4 | 4 | 496-500
Tytuł artykułu

Intervertebral test spacers and postfusion MRI artifacting: A comparative in vitro study of magnesium versus titanium and carbon fiber reinforced polymers as biomaterials

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Intervertebral spacers are made of different materials, which can effect the postfusion magnetic imaging (MRI) scans. Susceptibility artifacts specially 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. 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 2 T1-TSE MRI sequences. The artifact dimensions were traced on all scans and statistically analyzed. The total artifact volume and median artifact area of the titanium spacers were statistically significantly larger than magnesium spacers (p < 0.001), while magnesium and CFRP spacers produced almost identical artifacting behaviors (p > 0.05). Our results suggest that spinal implants made with magnesium alloys will behave more like CFRP devices in MRI scans.
Wydawca

Czasopismo
Rocznik
Tom
4
Numer
4
Strony
496-500
Opis fizyczny
Daty
wydano
2009-12-01
online
2009-10-03
Twórcy
  • Biomaterial Laboratory, Department of Orthopaedic Surgery, University of Gottingen, 37075, Gottingen, Germany
  • Department of Diagnostic Radiology, University of Gottingen, 37075, Gottingen, Germany
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11536-009-0027-4
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