Hydraulic transport properties of fractures not only control production flow rates in geo-energy reservoirs, but also affect potential leakage waste/energy storage reservoirs. Here, we performed shear-seepage tests on tensile sandstone and shale samples under varying effective normal stress conditions. The experimental results show that hydraulic transmissivity decreases with imposed shear stre...

purpose: surgeons performing an ilioinguinal exposure for acetabular fracture surgery need to be aware of aberrant findings such as inguinal hernias and spermatic cord lesions. the purpose of this study is to report these occurrences in a clinical series of adult males undergoing acetabular fracture fixation and a series of adult male cadavers. the secondary aim is to characterize these abnorma...

In this study, a coupled thermo-hydro-mechanical model to simulate multiple hydraulic fracture propagation is presented. Fracture with elastic deformation described by using displacement discontinuity method. The temperature distribution and induced thermal stress are calculated via semi-analytical method in an explicit way. An iterative scheme proposed solve the coupling between fluid flow str...

  Background: Fractures of the femoral shaft are mostly the result of high-energy accidents that also cause multiple trauma injuries, in particular ipsilateral knee and hip injuries. The purpose of this study was to investigate the incidence of injuries associated with femoral shaft fractures and how many of them were undetected. Methods: We studied 148 patients (150 femoral shaft fractures) wi...

Bisphosphonates are potent inhibitors of bone resorption and widely used to treat osteoporosis. Extensive studies have shown that therapy with bisphosphonates improves bone density and decreases fracture risk. However, concerns have been raised about potential over-suppression of bone turnover during long-term use of bisphosphonates, resulting in increased susceptibility to and delayed healing ...

Although trauma is one of the main causes of orbital apex syndrome (OAS), reports of OAS associated with orbital fractures are relatively rare. We recently treated two patients who sustained severe visual impairment with damage to multiple cranial nerves (third to sixth) associated with inferomedial orbital wall fractures. In these patients, posterior movement of the globe caused neuropathy of ...

osteoporosis is the most common metabolic bone disease. in addition to morbidity, osteoporotic fractures also increase mortality risk in affected patients. enough evidence is not available to indicate that, like western countries, osteoporosis is a public health problem in iran. therefore emrc planned to estimate the burden of osteoporotic fractures in year 2001 based on existing sources of dat...

Glucocorticoid-induced osteoporosis (GIO) is the most common form of secondary osteoporosis. Fractures, which are often asymptomatic, may occur in as many as 30-50% of patients receiving chronic glucocorticoid therapy. Vertebral fractures occur early after exposure to glucocorticoids, at a time when bone mineral density (BMD) declines rapidly. Fractures tend to occur at higher BMD levels than i...

background:  little is known about trends and predictors of hardware related infection following open reduction and internal fixation (orif) of extremity fractures, one of the major causes of failure following orif. the present study was designed and conducted to determine trends and predictors of infection-related hardware removal following orif of extremities using a nationally representative...