Featured Publications & Reports

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Osteointegrative Coating Solutions for PEEK-based Implants

In order to improve the stability of the bone-implant interface, PEEK implants can be coated with Titanium (Ti) or Hydroxyapatite (HA) via Plasma Spray (PS) processes. The aim of this work is to show a further development step allowing highly porous Ti coatings application also on PEEK.



Plasma Immerson Ion Implantation Treatment of Poly-Ether Ether Ketone For Surface Biofunctionalization

The aim of this project is to study the effects of the Plasma Immersion Ion Implantation (PIII) treatment on PEEK and explore methods of achieving improved bone cell responses by changing surface properties with PIII as well as using PIII to bio-functionalize PEEK surfaces with bone matrix proteins.



Frictional Heating of PEEK-UHMWPE Bearing Couple on Pin-on-disk Tester

Heat generated during elliptical Pin-on-disk articulation of UHMWPE-PEEK and UHMWPE-CoCr bearing couples, lubricated by either bovine serum or water on a Pin-on-disk, was characterized using an approach previously investigated for TKA by Lu and McKellop. We hypothesized that, at steady state, heat generated by articulation would not differ between UHMWPE-PEEK and UHMWPE-CoCr bearing couples. We also hypothesized that the coefficient of friction at steady state would be similar for both bearing couples when lubricated by either bovine serum or water.



Semi-Rigid Posterior Fixation: PEEK Rod Design, Rationale and Use

This presentation addresses the state of the art of PEEK rods employed in lower lumbar posterior fixation.



Characterization of In vivo Changes and Histological Repsonses of Retrieved PEEK Rod Spinal Systems

This study characterizes the surface damage mechanisms, curvature variations, crystallinity changes and histological responses of retrieved PEEK rods used in posterior spinal instrumentation. We hypothesized that PEEK rods would undergo permanent deformation and crystallinity changes while maintaining histological inertness in vivo.


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