Mechanical properties of totally permeable titanium composite pylon for direct skeletal attachment
Document Type
Article
Publication Date
5-2012
Department
Department of Materials Science and Engineering
Abstract
Composite pylons containing a solid titanium core with drilled holes surrounded by a porous sintered titanium shell have been fabricated and tested in bending along with the raw cores and pylons composed of the porous titanium alone. The new pylons were designed with the concept of enhanced in-growth of bone and skin cells and are intended for direct skeletal attachment of limb prostheses considering requirements for long-lasting anchorage to the residuum bone and a need for a safe skin-implant seal. Load-displacement thresholds were determined after which the integrity of the porous component may be compromised. The composite pylons have a flexural strength and stiffness substantially greater than that of pylons composed of the porous titanium alone. The drilled holes in the solid insert have been shown to have virtually no effect on the flexural strength of the pylon, while meeting a requirement for total permeability of the device for unrestricted cell ingrowth. The predicted strength of the pylons and associated failure modes are in close agreement with those measured.
Publication Title
Journal of Biomedical Materials Research - Part B Applied Biomaterials
Recommended Citation
Pitkin, M.,
Pilling, J.,
&
Raykhtsaum, G.
(2012).
Mechanical properties of totally permeable titanium composite pylon for direct skeletal attachment.
Journal of Biomedical Materials Research - Part B Applied Biomaterials,
100 B(4), 993-999.
http://doi.org/10.1002/jbm.b.32663
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3690
Publisher's Statement
© 2012 WILEY PERIODICALS, INC. Publisher’s version of record: https://doi.org/10.1002/jbm.b.32663