Custom hip implant design optimisation

摘要

Because of an increase in outdoor and sports activities combined with rising of body weight, poor or unhealthy food, joints are more often subject to high stress; the hip joints can thus damage and surgeries are often necessary. These issues motivate us to constantly improve prosthetic components in terms of design, biocompatibility and especially durability, such that the surgery revisions, to which most probably a young patient will have to undergo, will become as rare as possible, avoiding patient discomfort and invasiveness. Parameters which influence hip joint wear should be taken into account to improve the patient's condition after surgery, making the need for implant personalization increasingly important. The greatest challenge is to decrease the manufacturing cost of these personalized medical products. This paper aims automating the extraction of femoral bone parameters from patients CT(Computer Tomographic) scans or MRI(Magnetic Resonance Imaging), with which we can build a virtual model of the hip implant that will then be tested at different loads and repetitive cycles, this way making it possible to obtain the response to external solicitation. Once the prosthetic component is validated, it can move from the virtual prototype to its manufacturing. The key of success and the trend in modern arthroplasty is to create personalized implants, such that the surgery will not be as invasive, the patient will recover faster afterwards, and to also considerably increase the implants durability.