Title of article :
Evaluation of the Etiologies of Implant Fracture in Patients With Fractures of the Implants of Lower Limbs’ Long Bones
Author/Authors :
Yeganeh, Ali Iran University of Medical Science - Rasoul-e-Akram Hospital - Department of Orthopedic Surgery, ايران , Otoukesh, Babak Iran University of Medical Science - Rasoul-e-Akram Hospital - Department of Orthopedic Surgery, ايران , Kaghazian, Peyman Universitätsklinikum Bonn - Department of Orthopedic Surgery, Germany , Yeganeh, Nima Iran University of Medical Science - Rasoul-e-Akram Hospital - Department of Orthopedic Surgery, ايران , Boddohi, Bahram Iran University of Medical Science - Rasoul-e-Akram Hospital - Department of Orthopedic Surgery, ايران , Moghtadaei, Mehdi Iran University of Medical Science - Rasoul-e-Akram Hospital - Department of Orthopedic Surgery, ايران
Abstract :
Background: Orthopedics implants are important tools for treatment of bone fractures. Despite available recommendations for designing and making the implants, there are multiple cases of fracture of these implants in the body. Hence, in this study the frequency of failure of implants in long bones of lower extremities was evaluated. Methods and Materials: In this cross-sectional study, two types of fractured implants in the body were analyzed and underwent metalogical, mechanical, and modeling and stress-bending analysis. Results: The results revealed that the main cause of fractures was decreased mechanical resistance due to inappropriate chemical composition (especially decreased percentages of Nickel and Molybdenum). Conclusions: It may be concluded that following the standard chemical composition and use of optimal making method are the most important works for prevention of failure of implants.
Keywords :
Implant , SEM , Optical Metallography , QuantometryBackground: Orthopedics implants are important tools for treatment of bone fractures.Despite available recommendations for designing and making the implants , there aremultiple cases of fracture of these implants in the body. Hence , in this study the frequencyof failure of implants in long bones of lower extremities was evaluated. Methods and Materials:In this cross , sectional study , two types of fractured implants in the body were analyzedand underwent metalogical , mechanical , and modeling and stress , bending analysis.Results: The results revealed that the main cause of fractures was decreased mechanicalresistance due to inappropriate chemical composition (especially decreased percentagesof Nickel and Molybdenum). Conclusions: It may be concluded that following the standardchemical composition and use of optimal making method are the most important worksfor prevention of failure of implants.
Journal title :
Medical Archives
Journal title :
Medical Archives
