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Role of MRI in hip fractures, including stress fractures, occult fractures, avulsion fractures
European Journal of Radiology, 2012MR imaging plays a vital role in the diagnosis and management of hip fractures in all age groups, in a large spectrum of patient groups spanning the elderly and sporting population. It allows a confident exclusion of fracture, differentiation of bony from soft tissue injury and an early confident detection of fractures.
O, Nachtrab +5 more
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Hybrid fracture and the transition from extension fracture to shear fracture
Nature, 2004Fracture is a fundamental mechanism of material failure. Two basic types of brittle fractures are commonly observed in rock deformation experiments--extension (opening mode) fractures and shear fractures. For nearly half a century it has been hypothesized that extension and shear fractures represent end-members of a continuous spectrum of brittle ...
Jonathan M, Ramsey, Frederick M, Chester
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Fractures and Fracture-dislocations of the Neck of the Talus
The Journal of Trauma: Injury, Infection, and Critical Care, 1980Forty fractures and fracture-dislocations of the neck of the talus are reviewed. Undisplaced fractures are associated with a high proportion of good results. Type II fractures, where there has been subluxation of the subtalar joint, require accurate reduction to avoid subtalar joint incongruity, and have a 20% incidence of avascular necrosis.
J N, Penny, L A, Davis
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Fracture risk following an osteoporotic fracture
Osteoporosis International, 2003The aim of this study was to examine the pattern of fracture risk following a prior fracture at the spine, shoulder or hip. We studied 1918 patients with fractures at these sites identified from the Department of Radiology in Malmo who were followed for 5 years.
Johnell, O +7 more
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Fracture and Fracture Mechanics
1981Griffith was the first to offer an explanation for brittle fracture. He postulated that in a brittle material, cracks propagate when the released strain energy is just sufficient to provide the surface energy for the creation of new surfaces. That is elastic strain energy per unit volume = σ2/2E, where σ = stress applied perpendicular to the crack, E =
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Stress Fractures (Fatigue Fractures, Marsh-Fractures)
2009In consequence of cyclic long-continued or oft-repeated stress like prolonged walking, dancing, or running, infraction or complete fracture can develop on certain sites of the skeleton. There is no specific single causative injury in the history, like in trauma-related fractures.
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Progress and prospects of horizontal well fracturing technology for shale oil and gas reservoirs
Petroleum Exploration and Development, 2022Baoshan Guan, Haifeng Fu
exaly