OBJECTIVE To investigate associations between long term dietary intake of calcium and risk of fracture of any type, hip fractures, and osteoporosis. DESIGN A longitudinal and prospective cohort study, based on the Swedish Mammography Cohort, including a subcohort, the Swedish Mammography Cohort Clinical. SETTING A population based cohort in Sweden established in 1987. PARTICIPANTS 61,433 ...

BACKGROUND In skeletally immature children, it can often be difficult to differentiate occult Salter-Harris I fibula fractures from ankle sprains based on physical examination, and often, initial radiographs in both conditions are only notable for soft tissue swelling. The likelihood of a child having subsequent plain radiographic evidence of a fracture in this setting and the likelihood of sub...

BACKGROUND The growing utilization of total joint replacement will increase the frequency of its complications, including periprosthetic fracture. The prevalence and risk factors of periprosthetic fracture require further study, particularly over the course of long-term follow-up. The objective of this study was to estimate the prevalence and risk factors for periprosthetic fractures occurring ...

BACKGROUND Distal radius fractures are a common injury that cause pain and disability. The purpose of this study was to describe the pain and disabilities experienced by patients with a distal radius fracture in the first year following fracture. METHODS A prospective cohort study of 129 patients with a fracture of the distal radius was conducted. Patients completed a Patient-rated Wrist Eval...

BACKGROUND Whether reducing time-to-surgery for elderly patients suffering from hip fracture results in better outcomes remains subject to controversial debates. METHODS As part of a prospective observational study conducted between January 2002 and September 2003 on hip-fracture patients from 268 acute-care hospitals all over Germany, we investigated the relationship of time-to-surgery with ...

BACKGROUND We aimed to evaluate the etiologies, otolaryngological features, radiological findings, management strategies, and outcomes of temporal bone fractures. METHODS Seventy-seven temporal bone fracture cases were retrospectively evaluated for age and gender distribution, side of the fracture, etiology of injuries, the presence of blood otorrhea, tympanic membrane perforation, cerebrospi...

It is common practice in industry to monitor hydraulic fracturing jobs by picking major, micro-earthquake events in seismograms whose source locations form a spatial pattern used for interpreting induced fractures. Surprisingly, controversy still surrounds the interpretation of these scattered, discrete events. Many authors conclude that hydraulic fractures are generated by shear failure events...

PURPOSE To estimate the frequency of use of pressure-redistributing support surfaces (PRSS) among hip fracture patients and to determine whether higher pressure ulcer risk is associated with greater PRSS use. DESIGN AND METHODS Patients (n = 658) aged >or=65 years who had surgery for hip fracture were examined by research nurses at baseline and on alternating days for 21 days. Information on ...

Abstract A simple method is proposed to model the open cracked beam structures. In this method, crack is modeled as a beam element. Hence cracked beam can be assumed to be a beam with stepped cross sections, and problem of determining natural frequency and mode shape of cracked beam, can be solved as determining these characteristics for a beam with different length and cross section. With this...