The incidence of hip fracture varies worldwide. From 1997 to 1998, the incidence of hip fracture in Chiang Mai was 151.2 and 185.2 per 100,000 from the hospital survey and the community survey respectively. The mortality rate in hospital following hip fracture was 2.1% and the one-year mortality rate rose steadily to 37%. In addition, morbidity after hip fracture may also carry serious implicat...

introduction: post and core has been considered for endodontically treated tooth, especially in cases with severe damage crowns. recently fiber reinforced composite posts (frc post) have been used in the treatment of endodontically treated teeth. because the length and diameter of posts are effective in stress distribution, the purpose of this study is to evaluate the effect of length and diame...

the basic trait in the ceramics is their high brittle or low fracture toughness, and the main criteria in the design and application is specifying the fracture toughness in ceramics. in this paper, a new method is proposed to determine the fracture toughness of ceramics, which is enhanced in lowering the cost of fracture toughness determination relative to the previous methods. hence due to the...

The age-specific finite element human body models representing rib fracture were developed by the authors. They are limited, however, in quantitative evaluation of a strain that exceeds the predetermined threshold, i.e. the strain measured on the “fracture” model is censored. A “non-fracture” model can evaluate the value of the strain throughout the impact, but may be at a disadvantage when try...

BACKGROUND Second hip fractures account for up to 15% of all hip fractures. We sought to determine if the proportion of hip fracture surgeries for second hip fracture changed over time in terms of patient and fracture characteristics. METHODS We reviewed the records of patients older than 60 years hospitalized for hip fracture surgery between 1990 and 2005 in British Columbia. We studied the ...

Association of fracture of trapezium with Bennett's fracture is very rare and makes reduction and stabilisation more difficult. We are reporting a rare case of Bennett's fracture with fracture of the trapezium and subluxation of the carpo-metacarpal joint (CMC) joint. The patient was a 47-year-old school teacher who fell from his motorbike on his outstretched right dominant hand. Radiographs an...

background: some studies have previously shown that geometry of proximal femur can affect the probability of fracture and type of fracture. it happens since the geometry of the proximal femur determines how a force is applied to its different parts. in this study, we have compared proximal femur’s geometric characteristics in femoral neck (fnf), intertrochanteric (itf) and subtrochanteric (stf)...

background: osteoporotic compression vertebral fractures are common clinical problems. in those with refractory fractures, percutaneous cement augmentation has been suggested. the aim of this study was to evaluate the functional outcome of percutaneous vertebroplasty in iranian patients with refractory osteoporotic fractures. methods: we retrospectively studied 37 osteoporotic fractures in 28 p...

extractosteoporosis is one of the most serious  debilitating health problems that older people deal with it. but can be prevent or minimize more than any other health problem . two new patients were admitted to the orthopedic ward of a crowded hospital in the city. one of them is a 60 year old woman who had vertebral compression fractures during coughing and eventually left the hospital with ch...