منابع مشابه
Cancellous Bone Fracture Modeled by Finite Elements at Micro Scale
Introduction The estimation of failure parameters of bone are clinically relevant as in our aged society bone injuries are having greater economic impact. At the macro scale, bone is mainly composed of cortical and trabecular bone. Trabecular bone has major importance in the failure process in bone. The highly hierarchical structure of bone makes it necessary to study its different scales to in...
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We find that the classical failure criteria, i.e., maximum normal stress criterion, Tresca criterion, Mohr-Coulomb criterion, and von Mises criterion, cannot satisfactorily explain the tensile fracture behavior of the bulk metallic glass (BMG) materials. For a better description, we propose an ellipse criterion as a new failure criterion to unify the four classical criteria above and apply it t...
متن کاملAssociation of microstructural and mechanical properties of cancellous bone and their fracture risk assessment tool scores.
This study is to investigate the association between fracture probabilities determined by using the fracture risk assessment tool (FRAX) and the microstructure and mechanical properties of femoral bone trabecula in osteoporosis (OP) and osteoarthritis (OA) patients with hip replacements. By using FRAX, we evaluated fracture risks of the 102 patients with bone replacements. Using micro CT scanni...
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BACKGROUND This study was conducted to evaluate the treatment of aseptic nonunion of the humeral shaft with a dynamic compression plate (DCP) and cancellous bone graft. METHODS One hundred and five cases of nonunion of a humeral shaft fracture between 1982 and 2001 were analyzed retrospectively. The study population comprised 66 males and 39 females with an average age of 46.2 years (range, 1...
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Frontal sinus fractures make up about 2-15% of all facial fractures.This is relatively low frequency of occurrence, but it has a large potential of complication and may involve not only the frontal sinuse but more importantly the brain and the eyes. The management depends of the complexity. If anterior wall is fractured with grossly involved nasofrontal duct (NFD) in the injury it is paramount ...
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ژورنال
عنوان ژورنال: Acta Orthopaedica Scandinavica
سال: 1980
ISSN: 0001-6470
DOI: 10.3109/17453678008990868