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Clovis : Implant pour le soin des fractures du fémur proximalDéveloppement d’un implant à géométrie variable pour le traitement des fractures du fémur proximal chez les personnes âgées.


Description : This film summarizes the research actions carried out during a Franco-Swiss research project around the development of an implant for the care of fractures of the proximal femur. For specific fractures called intertrochanteric, it is possible to fix the fracture in an intramedullary way (inside the bone) or in an extramedullary way (outside the bone). For each type of treatment, hospitals are equipped with the two fixing systems. The differences in physical characteristics between individuals imply the existence of multiple references implants and therefore additional costs in terms of equipment. In this thesis work, an original implant adaptable to most people has been developed. This implant will provide surgeons greater flexibility during surgery but also significantly reduce stocks implants in hospitals. The mechanical behavior of the implant is studied in different cases of fractures by two complementary approaches, a finite element analysis and an experimental study employing stereo-image correlation technique from images of high speed cameras. The results of the numerical calculation are compared with those derived from tests on synthetic femurs, then cadaver in anatomy laboratory. Comparisons with existing implants show that this new implant concept allows for a more stable fixation of bone fragments and a good compression of the fracture.
Contributor : Pierre Vacher <>
Submitted on : Wednesday, June 17, 2020 - 10:51:13 AM
Last modification on : Friday, November 6, 2020 - 3:26:09 AM