Aim. To precisely estimate the effect of age on the risk of fracture hospitalisation among the Western Australia population over the life course. Methods. This population-based cohort study used hospital data on fractures for the period January 1991 to January 2013 among Western Australians born between 1915 and 1990. Results. The average incidence rates (per 10,000 person-years) of fracture ho...

Instabilities in snow slopes generally involve the progressive fracture along a weak snowpack layer. Recent field observations on fractures in weak layers have shown that this process results vertical displacement due to crushing of the weak layer. Long beam specimens containing a natural weak layer were used to study the propagation of fracture. Multiple black markers were inserted in the snow...

BACKGROUND Degraded and osteogenic property of coated magnesium alloy was evaluated for the fracture fixation in rabbits. METHODS Magnesium alloy AZ31 with a different coating thickness by microarc oxidation was used, and the bilateral radial fracture model was created by the bite bone clamp. Thirty-six New Zealand white rabbits in weight of 2.5~3.0 kg were randomly divided into A, B, and C g...

The recent development of tight oil reservoirs has led to an increase in oil production in the past several years due to the progress in horizontal drilling and hydraulic fracturing. However, the expected oil recovery factor from these reservoirs is still very low. CO2-based enhanced oil recovery is a suitable solution to improve the recovery. One challenge of the estimation of the recovery is ...

PURPOSE To elucidate the natural history of unicameral bone cyst (UBC) and risk factors for pathological fracture. METHODS 14 males and 8 females (mean age, 9 years) diagnosed with UBC were reviewed. Cyst location, symptoms, and whether there was any fracture or surgery were recorded. Cyst parameters were measured on radiographs, and included (1) the cyst index, (2) the ratio of the widest cy...

Here, laboratory tests were conducted to examine the effects of natural fracture density (NFD) on propagation hydraulic (HF), HF and (NF) interaction, formation stimulated reservoir volume (SRV). Laboratory methods proposed prepare samples with dense, medium spare discrete orthogonal networks. After conducting a true triaxial fracturing experiment synthetic blocks, experimental results analyzed...

In this investigation the fracture resistance of scales from Cyprinus carpio was evaluated as a function of environmental temperature. Tear specimens were prepared from scales obtained from three characteristic regions (i.e. head, mid-length and tail) of multiple fish. The fracture resistance was characterized in Mode III loading and over temperatures ranging from -150°C to 21°C. Results showed...

BACKGROUND The standard radiographic series for evaluation of a suspected hip fracture in most centers includes an anteroposterior (AP) radiograph of the pelvis, as well AP and cross-table lateral views of the hip. The natural femoral neck anteversion, as well as the fracture deformity, however, may make accurate fracture classification difficult. We have noted that inexperienced physicians som...

a 3-year-old arabian colt was presented for a major gingiva wound at the right rostral part of mandible. after clinical assessments, rostral mandibular fracture was determined. stabilization of fractured region was achieved via cerclage wire application under general anesthesia. fixation wires were left in place for 6 weeks. a 3 -month follow up revealed complete fracture healing. the purpose o...