NDLI: Bone ingrowth potential of electron beam and selective laser melting produced trabecular-like implant surfaces with and without a biomimetic coating

Content Provider	Springer Nature Link
Author	Biemond, J. E. Hannink, G. Verdonschot, N. Buma, P.
Copyright Year	2012
Abstract	The bone ingrowth potential of trabecular-like implant surfaces produced by either selective laser melting (SLM) or electron beam melting (EBM), with or without a biomimetic calciumphosphate coating, was examined in goats. For histological analysis and histomorphometry of bone ingrowth depth and bone implant contact specimens were implanted in the femoral condyle of goats. For mechanical push out tests to analyse mechanical implant fixation specimens were implanted in the iliac crest. The follow up periods were 4 (7 goats) and 15 weeks (7 goats). Both the SLM and EBM produced trabecular-like structures showed a variable bone ingrowth after 4 weeks. After 15 weeks good bone ingrowth was found in both implant types. Irrespective to the follow up period, and the presence of a coating, no histological differences in tissue reaction around SLM and EBM produced specimens was found. Histological no coating was detected at 4 and 15 weeks follow up. At both follow up periods the mechanical push out strength at the bone implant interface was significantly lower for the coated SLM specimens compared to the uncoated SLM specimens. The expected better ingrowth characteristics and mechanical fixation strength induced by the coating were not found. The lower mechanical strength of the coated specimens produced by SLM is a remarkable result, which might be influenced by the gross morphology of the specimens or the coating characteristics, indicating that further research is necessary.
Starting Page	745
Ending Page	753
Page Count	9
File Format	PDF
ISSN	09574530
Journal	Journal of Materials Science: Materials in Medicine
Volume Number	24
Issue Number	3
e-ISSN	15734838
Language	English
Publisher	Springer US
Publisher Date	2012-12-21
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Biomaterials Polymer Sciences Ceramics, Glass, Composites, Natural Methods Metallic Materials Characterization and Evaluation of Materials Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Biomaterials Biophysics Bioengineering Biomedical Engineering

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