Scientific Exhibits   |    
Clinical Validation of a Structural Porous Tantalum Biomaterial for Adult Reconstruction
J. Dennis Bobyn, PhD; R.A. Poggie, PhD; J.J. Krygier, CET; D.G. Lewallen, MD; A.D. Hanssen, MD; R.J. Lewis, MD; A.S. Unger, MD; T.J. O'Keefe, MD; M.J. Christie, MD; S. Nasser, MD; J.E. Wood, MD; S.D. Stulberg, MD; M. Tanzer, MD
View Disclosures and Other Information
In support of their research or preparation of this manuscript, one or more of the authors received grants or outside funding from Zimmer, Inc. and/or Implex Corp. In addition, one or more of the authors received payments or other benefits or a commitment or agreement to provide such benefits from a commercial entity (Zimmer, Inc. and/or Implex Corp.). Also, a commercial entity (Harber Orthopedic Fellowship Fund) paid or directed, or agreed to pay or direct, benefits to a research fund, foundation, educational institution, or other charitable or nonprofit organization with which the authors are affiliated or associated.

The Journal of Bone and Joint Surgery, Incorporated
J Bone Joint Surg Am, 2004 Dec 01;86(suppl 2):123-129
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Various porous coatings—most notably, those manufactured by the sintering of cobalt-chrome or titanium beads and the diffusion bonding of titanium fiber wires—have been utilized for the biologic attachment of orthopaedic implants during the past three decades1. About ten years ago, a novel porous biomaterial made from commercially pure tantalum2-5 with a unique set of physical and mechanical properties was developed. Compared with conventional porous coatings, this material possesses higher volume porosity, more freely communicating pores, a higher coefficient of friction against bone, and a lower bulk stiffness (Fig. 1). In addition, the material is structural in that it has sufficient strength to enable the manufacture of implants without the need for a supportive solid metal substrate.
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