Gilles Mathieu

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BACKGROUND Bone marrow aspirated from the iliac crest contains progenitor cells that can be used to obtain bone-healing of nonunions. However, there is little available information regarding the number and concentration of these cells that are necessary to obtain bone repair. The purpose of this study was to evaluate the number and concentration of(More)
UNLABELLED Most previous studies of THA in sickle cell disease report high risks of medical and orthopaedic complications, including infections and a higher incidence of failure than observed after THA for osteonecrosis related to other conditions. Based on our experience (1245 orthopaedic procedures during the last 25 years), we questioned these(More)
EGEE, along with its sister project LCG, manages the world's largest grid production infrastructure which is spreading nowadays over 260 sites in more than 40 countries. Just as building such a system requires novel approaches; its management also requires innovation. From an operational point of view, the first challenge we face is to provide scalable(More)
The organization and management of the user support in a global e-science computing infrastructure, such as the Worldwide LHC Computing Grid, is one of the challenges of the Grid. Given the widely distributed nature of the organization, and the spread of expertise for installing, configuring, managing and troubleshooting the grid middleware services, we(More)
PURPOSE OF THE STUDY Most pertrochanteric fractures can be successfully fixed with osteosynthesis. Osteosynthesis fails however is a small number of patients who require re-operation for implantation of a total hip prosthesis. This situation occurs in particular when the material has penetrated the acetabulum and in elderly subjects. Although this type of(More)
PURPOSE OF THE STUDY We reviewed fractures of the distal femur occurring during or after total knee arthroplasty in order to identify risk factors. MATERIAL AND METHODS Twelve intraoperative fractures occurred between 1990 and 2000 among 617 total knee arthroplasties performed during this period. The circumstances of these fractures were noted in(More)
Metallosis is mainly described in the hip joint at the time of wear or inappropriate use. Cases have also been reported in patients with a knee prosthesis, but never after tibial osteotomy. We report a rare case of metallosis resulting from metal-alumina contact after open wedge tibial osteotomy. The patient complained of pain, which was relieved after(More)