Concept

Implant

Publications associées (241)

Electrophoretic deposition of multi-scale structured TiO2 surfaces

The long term fixation of biomedical implants constitutes an issue in the clinical praxis. Implant fixation can be improved by functionalizing its surface. In fact, the tissue response around an implant is conditioned by its surface morphological and chemi ...

EPFL2009

Feasibility of 3D micromotion measurement around a loaded hip stem using micro-CT imaging.

Dominique Pioletti, Alexandre Terrier, Miguel Gortchacow, Shreya Saxena

It has been established that primary stability of femoral stems is a determinant of the clinical success of cementless total hip arthroplasty[1]. Excessive interface micromotions may lead to a peri-implant fibrous tissue formation resulting in aseptic loos ...

2009

Ion-implanted compliant electrodes used in dielectric electroactive polymer actuators with large displacement

Herbert Shea, Samuel Rosset, Muhamed Niklaus

Metal ion implantation is shown here as an effective technique to fabricate highly compliant electrodes at room temperature on polymer substrates. By implanting 5 keV gold ions in polydimethylsiloxane we have fabricated micron-scale electrodes that conduct ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2009

3D model of bone remodeling coupled with a drug effect

Philippe Abdel Sayed

Total hip replacement, which is a successful solution for restoring movement to damaged joints, becomes nowadays a common surgical procedure. However the lifespan of hip implants is limited, because of pathologic strain distribution in bone inducing bone-r ...

2009

Comparison of polyethylene wear in anatomical and reversed shoulder prostheses

Dominique Pioletti, Alexandre Terrier, Alain Farron, Francesco Merlini

Wear of polyethylene is associated with aseptic loosening of orthopaedic implants and has been observed in hip and knee prostheses and anatomical implants for the shoulder. The reversed shoulder prostheses have not been assessed as yet. We investigated the ...

2009

Ion-implanted compliant electrodes for mm-size dielectric elastomer actuators

Herbert Shea, Samuel Rosset, Muhamed Niklaus

The miniaturization of dielectric elastomer actuators requires compliant electrodes that are clean, reliable, and that can be easily patterned on a mm or μm scale. Carbon-based electrodes, which are commonly used to make large-scale actuators, are not well ...

2009

in vivo Electrical Impedance Spectroscopy of Tissue Reaction to Microelectrode Arrays

Philippe Renaud, Arnaud Bertsch, André Mercanzini

The goal of this experiment was to determine the electrical properties of the tissue reaction to implanted microelectrode arrays. We describe a new method of analyzing electrical impedance spectroscopy data to determine the complex impedance of the tissue ...

2009

Multi-axial mechanical properties of human trabecular bone

Liliana Rincon Kohli

In the context of osteoporosis, evaluation of bone fracture risk and improved design of epiphyseal bone implants rely on accurate knowledge of the mechanical properties of trabecular bone. A multi-axial loading chamber was designed, built and applied to ex ...

2009

A three-dimensional elastic plastic damage constitutive law for bone tissue

Alain Curnier

Motivated by mechanical analysis of bones and bone-implant systems, a 3D constitutive law describing the macroscopic mechanical behaviour of both cortical and trabecular bone in cyclic (not fatigue) overloads is developed. The proposed model which mathemat ...

Springer Verlag2009

Nanostructured Ceramic Coatings for Drug Delivery

Heinrich Hofmann, Laurent-Dominique Piveteau, Arnaud Tourvieille de Labrouhe, Karin Dittmar

Drug eluting stents (DES) have been successfully implemented in clinical practice in the treatment against coronary artery disease. Compared to the implantation of bare metal stents, restenosis rates decreased significantly after stenting of DES into coron ...

Materials Research Society, 506 Keystone Drive, Warrendale, Pa 15086-7573 Usa2009

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