Évaluation fonctionnelle, radiologique et biologique des nouvelles techniques et technologies en arthroplastie de la hanche

Chercheurs-boursiers cliniciens- Junior 2 | Concours 2012-2013

Martin Lavigne

Centre de recherche de l'Hôpital Maisonneuve-Rosemont


Domaine Appareil locomoteur et arthrite

Approximately 7000 hip and knee prostheses are implanted each year in the Province of Québec, representing 94 million $ in investment. In patients >55 years, the failure rate of implants can reach 33% at 15 years. Another surgery to replace the implants thus becomes needed in a majority of young patients, often with suboptimal clinical outcome. In light of this, new technologies used in hip replacement are being developed to allow better return to work and sports activities and improve survivorship of implants. Surgical techniques implant design, biomaterials and rehabilitation science all improved, but they have became more costly. It is thus mandatory to ensure the efficacy of new technologies in order to evaluate clinical and economical benefits of these changes in our clinical practice. My research program is mainly focused on the functional evaluation, radiographic analysis et biological impacts of implementing new technologies in hip arthroplasty. The research program will pursue collaboration with engineers, biostatisticians and kinesiologists. As the referring center for young patients with hip problems, HMR is the ideal center to carry out this type of research. Orthopaedic surgeons at HMR perform >700 hip prostheses annually and actively participate in recruitment of patients.
The main objectives of my research program is thus aimed at ensuring safety and assessing the clinical efficacy of implementing new technologies in hip joint replacement. In particular, we will study metal ion release from the implant in the bloodstream, the stability and durability of implants, the improvement in clinical function and quality of life along with satisfaction of patients who receive total hip replacement.