Publication: Mechanical evaluation of stainless steel and titanium dynamic hip screws for trochanteric fracture
Issued Date
2010-09-01
Resource Type
ISSN
20103778
2010376X
2010376X
Other identifier(s)
2-s2.0-78651544371
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Mahidol University
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SCOPUS
Bibliographic Citation
World Academy of Science, Engineering and Technology. Vol.70, (2010), 662-665
Suggested Citation
Supakit Rooppakhun, Nattapon Chantarapanich, Bancha Chernchujit, Banchong Mahaisavariya, Sedthawatt Sucharitpwatskul, Kriskrai Sitthiseripratip Mechanical evaluation of stainless steel and titanium dynamic hip screws for trochanteric fracture. World Academy of Science, Engineering and Technology. Vol.70, (2010), 662-665. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/29077
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Title
Mechanical evaluation of stainless steel and titanium dynamic hip screws for trochanteric fracture
Abstract
This study aimed to present the mechanical performance evaluation of the dynamic hip screw (DHS) for trochanteric fracture by means of finite element method. The analyses were performed based on stainless steel and titanium implant material definitions at various stages of bone healing and including implant removal. The assessment of the mechanical performance used two parameters, von Mises stress to evaluate the strength of bone and implant and elastic strain to evaluate fracture stability. The results show several critical aspects of dynamic hip screw for trochanteric fracture stabilization. In the initial stage of bone healing process, partial weight bearing should be applied to avoid the implant failure. In the late stage of bone healing, stainless steel implant should be removed.
