Paper Title:
Injectable Bone Cements for Vertebroplasty Studied in Sheep Vertebrae with Electron Microscopy
  Abstract

Vertebral compression fractures were simulated by making a hole into sheep vertebrae and by injecting a stabilizing material. The injectable bio-ceramic Xeraspine™ was evaluated together with a commercially available PMMA (Vertebroplastic™) as the reference material. The Vertebrae were harvested after 7 days and prepared for microscopy. The samples were deposited with gold on the surface and thereafter subjected to SEM and EDX analysis. It was found that the Xeraspine-bone interface was composed of a mixture of elements. The Vertebroplastic implant was embedded in a carbon containing tissue, likely a soft tissue capsule. The Xeraspine sample was subjected to high resolution analysis in the TEM combined with EDX measurements. The TEM sample was prepared with a novel technique for preparation of the tissue-material interface (FIB). In the TEM analysis it was found that the interface region consists of ZrO2 together with a mixture possibly consisting of katoite and apatite formed during setting and/or originating from the boneapatite.

  Info
Periodical
Key Engineering Materials (Volumes 361-363)
Main Theme
Edited by
Guy Daculsi and Pierre Layrolle
Pages
373-376
DOI
10.4028/www.scientific.net/KEM.361-363.373
Citation
T. Jarmar, T. Uhlin, U. Höglund, P. Thomsen, L. Hermansson, H. Engqvist, "Injectable Bone Cements for Vertebroplasty Studied in Sheep Vertebrae with Electron Microscopy", Key Engineering Materials, Vols. 361-363, pp. 373-376, 2008
Online since
November 2007
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