Iranian Journal of Biomedical Engineering (IJBME)
نوع مقاله : مقاله کامل پژوهشی
نویسندگان
1 ایران، یزد، دانشگاه یزد، دانشکده مهندسی مکانیک
2 دانشکده مهندسی مکانیک، دانشگاه یزد، یزد، ایران
3 دانشکده مهندسی مکانیک، دانشگاه صنعتی امیرکبیر، تهران، ایران
4 گروه ارتوپدی، دانشگاه پزشکی شهید صدوقی، یزد، ایران
کلیدواژهها
موضوعات
عنوان مقاله English
نویسندگان English
Femoral neck fracture is one of the most common fractures at different ages. Various treatment methods are available to stabilize femoral neck fractures, often using a variety of orthopedic screws. The standard treatment involves the use of cancellous screws and the application of preloading force to keep the fractured parts together. However, one of the main challenges in this method is the long-term stability of the screw arrangement. Locking screws, when used with a plate, play a significant role in maintaining stability; however, their use alone reduces the compressive force at the fracture site. In this study, a combination of cancellous and locking screws is utilized to achieve both adequate compression and sufficient stability. In the following, the compression and relative displacement in fractured components for different arrangements of cancellous and self-locking screws, as well as their combinations, were compared using the finite element method to determine the optimal arrangement. Simulation results indicated that combining both types of screws in a single arrangement provides the best compression and stability. Compression should be applied at the upper region of the bone because this area is subjected to tensile forces due to the weight loading on the bone, which can lead to separation. Therefore, it is recommended to use cancellous screws at the upper part of the bone to achieve adequate compression in this area, while self-locking screws apply at the lower part to reduce relative displacement in the fractured components and enhance overall stability
کلیدواژهها English
