Concept

Prothèse du genou

Publications associées (255)

HybF, a zinc-containing protein involved in NiFe hydrogenase maturation

HypA and HypB are maturation proteins required for incorporation of nickel into the hydrogenase large subunit. To examine the functions of these proteins in nickel insertion, the hybF gene, which is a homolog of hypA essential for maturation of hydrogenase ...

2004

Development of vegetable fibre-mortar composites of improved durability

Karen Scrivener

The primary concern for vegetable fibre reinforced mortar composites (VFRMC) is the durability of the fibres in the alkaline environment of cement. The composites may undergo a reduction in strength and toughness as a result of weakening of the fibres by a ...

2003

RISK-BASED REPLACEMENT STRATEGIES FOR DETERIORATING REINFORCED CONCRETE PIPES

Bryan Adey

Water distribution networks comprised of underground reinforced concrete pipes deteriorate with time due to environmental conditions, such as chloride-induced corrosion and differential soil movements [1]. If the pipes in these networks are not periodicall ...

2003

Spatio-temporal parameters of gait measured by an ambulatory system using miniature gyroscopes

Kamiar Aminian, Philippe Robert, Bijan Najafi

In this study we describe an ambulatory system for estimation of spatio-temporal parameters during long periods of walking. This original method based on wavelet analysis is proposed to compute the values of temporal gait parameters from the angular veloci ...

2002

Gait Features Assessment in Hip Osteoarthritis and Total Hip Replaced Patients Based on an ambulatory System (Physilog)

Kamiar Aminian, Philippe Robert, Bijan Najafi, Hooman Dejnabadi

Osteoarthritis is the most frequent joint pathology throughout the world. Obtaining objective, dynamic and quantified data allowing the evaluation of patients’ progress before and after hip arthroplasty is crucial. Gait analysis can be used for evaluating ...

2002

Gene expression analysis of osteoblastic cells contacted by orthopedic implant particles

Dominique Pioletti

Particles generated from orthopedic implants through years of wear play an essential role in the aseptic loosening of a prosthesis. We have investigated the biocompatibility of these orthopedic particles on different osteoblast-like cells representative of ...

2002

A finite element model of the shoulder: application to the comparison of normal and osteoarthritic joints

Alain Farron, Lalaonirina Rakotomanana Ravelonarivo, Philippe Büchler

Objective. The objective of the present study was to develop a numerical model of the shoulder able to quantify the influence of the shape of the humeral head on the stress distribution in the scapula. The subsequent objective was to apply the model to the ...

2002

ESMAC-SIAMOC 2001 Joint Congress: Gait Events in Hip Osteoarthritis and Total Hip Replaced Patients Evaluated by Two different Gait Analysis Systems

Kamiar Aminian, Philippe Robert, Bijan Najafi

Comprehensive gait analysis usually includes kinematics, kinetics, and electromyography. A complex instrumentation is thus required that only can be installed in a dedicated laboratory. These techniques are valuable to support clinical decisions and to eva ...

2001

Static compression is associated with decreased diffusivity of dextrans in cartilage explants

Jean-Jacques Meister, Philippe Kocian

The chondrocytes of adult articular cartilage rely upon transport phenomena within their avascular extracellular matrix for many biological activities. Therefore, changes in matrix structure which influence cytokine transport parameters may be an important ...

Elsevier2001

Noncemented total hip arthroplasty: influence of extramedullary parameters on initial implant stability and on hone-implant interface stresses

Lalaonirina Rakotomanana Ravelonarivo, Pierre-François Leyvraz

Purpose of the study After total hip replacement, the initial stability of the cementless femoral stem is a prerequisite for ensuring bone ingrowth and therefore long term fixation of the stem. For custom made implants, long term success of the replacement ...

2000

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