Mechanical Stability of RCSed and ECAPed Intramedullary ۳۱۶L Stainless Steel Nails in the Treatment of Diaphyseal Bone Fractures
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_MPMPJ-10-4_005
تاریخ نمایه سازی: 5 اردیبهشت 1401
Abstract:
Over the last several decades, implants have been used to treat fractures and promote healing. The most important reason for deformation and shortening of the bone during healing due to loading on the nails is a lack of strength of the intramedullary nail. Materials with very fine grain dimensions are considered for such purposes. Ultrafine-grained (UFG) materials have structural elements with very fine grain sizes. Several methods for producing UFG materials have been developed, one of which is the top-down approach, which refines coarse-grained metals via severe plastic deformation (SPD). The SPD technique has several advantages that set it apart from other methods of synthesizing. Two of the SPD methods used in this study were the repetitive corrugation and straightening (RCS) process and the equal channel angular pressing (ECAP) process on a ۳۱۶L stainless steel rod. Mechanical tests were performed on the rods produced using these methods. Under loading, simulation results revealed that the bone implanted by the RCS rod has greater structural stiffness than the bone implanted by an ECAPed ۳۱۶L stainless steel rod.
Keywords:
Diaphyseal bone fractures , intramedullary nailing , Severe Plastic Deformation (SPD) , Finite elements method
Authors
Abdolreza Rastitalab
Department of Mechanical, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Salar Khajehpour
Department of Mechanical, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Ahmad Afsari
Department of Mechanical, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Shahin Heidari
Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
Javad Dehghani
Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran