title: Comparison of effects of different screw materials in the triangle fixation of femoral neck fractures.
abstract: In this study, biomechanical behaviors of three different screw materials (stainless steel, titanium and cobalt-chromium) have analyzed to fix with triangle fixation under axial loading in femoral neck fracture and which material is best has been investigated. Point cloud obtained after scanning the human femoral model with the three dimensional (3D) scanner and this point cloud has been converted to 3D femoral model by Geomagic Studio software. Femoral neck fracture was modeled by SolidWorks software for only triangle configuration and computer-aided numerical analyses of three different materials have been carried out by AnsysWorkbench finite element analysis (FEA) software. The loading, boundary conditions and material properties have prepared for FEA and Von-Misses stress values on upper and lower proximity of the femur and screws have been calculated. At the end of numerical analyses, the best advantageous screw material has calculated as titanium because it creates minimum stress at the upper and lower proximity of the fracture line.
authors.affiliation: Department of Mechanical and Manufacturing Engineering, Hasan Ferdi Turgutlu Technology Faculty, Manisa Celal Bayar University, Manisa, 45400, Turkey. kadirgok67@hotmail.com.
authors.forename: Kadir
authors.initials: K
authors.lastname: Gok
authors.affiliation: Department of Orthopaedic Surgery, School of Medicine, Dumlupinar University, Campus of Evliya Celebi, Kutahya, 43100, Turkey.
authors.forename: Sermet
authors.initials: S
authors.lastname: Inal
authors.affiliation: Department of Mechanical Engineering, Technology Faculty, Amasya University, Amasya, 05000, Turkey.
authors.forename: Arif
authors.initials: A
authors.lastname: Gok
authors.affiliation: Eyyup Gulbandilar, Faculty of Engineering & Architecture, Department of Computer Engineering, Eskisehir Osmangazi University, Meselik Campus, Eskisehir, 26480, Turkey.
authors.forename: Eyyup
authors.initials: E
authors.lastname: Gulbandilar
mesh_terms: D001672:Biocompatible Materials; D001696:Biomechanical Phenomena; D001863:Bone Screws; D002857:Chromium / Q000737:chemistry; D003035:Cobalt / Q000737:chemistry; D003198:Computer Simulation; D017076:Computer-Aided Design; D005265:Femoral Neck Fractures / Q000601:surgery*; D005269:Femur / Q000601:surgery; D020342:Finite Element Analysis; D005593:Fracture Fixation, Internal / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D021621:Imaging, Three-Dimensional; D008422:Materials Testing; D008962:Models, Theoretical; D012984:Software; D013193:Stainless Steel; D013314:Stress, Mechanical; D014025:Titanium / Q000737:chemistry; D016474:Weight-Bearing
chemical_list: D001672:Biocompatible Materials; D002857:Chromium; D013193:Stainless Steel; D003035:Cobalt; D014025:Titanium