Results 21 to 30 of about 2,977,633 (253)

Bone fractures after menopause [PDF]

open access: yes, 2010
Every year 30% of individuals above age 65 fall, and falls are the principal cause of bone fractures. To reduce fracture incidence requires both prevention of falls and maintenance of bone strength.PubMed searches were performed, for studies of the ...
Ralston, Stuart H.   +43 more
core   +1 more source

When, where and how osteoporosis-associated fractures occur: An analysis from the global longitudinal study of osteoporosis in women (GLOW) [PDF]

open access: yes, 2013
Objective: To examine when, where and how fractures occur in postmenopausal women. Methods: We analyzed data from the Global Longitudinal Study of Osteoporosis in Women (GLOW), including women aged ≥55 years from the United States of America, Canada ...
Anderson, Frederick A   +136 more
core   +1 more source

Stress fractures

open access: yesActa Orthopaedica et Traumatologica Turcica, 2021
Stress fractures, resulting from phyical exercise have been recognized since l855 when Breithaup: documented foot pain and swelling in a gruoupol Porussıan soldeiers foot. This chaacteristically occurs in a normal bone that is subjected to repeated cylic
Mehmet Altinmakas
doaj  

Delayed surgical debridement in pediatric open fractures: a systematic review and meta-analysis. [PDF]

open access: yes, 2014
Purpose: Open fractures are considered orthopedic emergencies that are traditionally treated with surgical debridement within 6 h of injury to prevent infection.
Erwin, PJ   +9 more
core   +2 more sources

Case report: A rare Salter–Harris V metaphyseal fatigue fracture of the knee in an adolescent patient with obesity

open access: yesFrontiers in Pediatrics, 2023
Stress fractures are rare, occurring in 1.5/100,000 high school athletes. High impact, repetitive loading participation in woman's sports, and being a white athlete have been identified as risk factors for stress fractures. Mostly treated conservatively,
Chao Gao   +4 more
doaj   +1 more source

Seepage Behavior of Fractures in Paleogene Sandstone Reservoirs in Nanpu Sag, Bohai Bay Basin, Eastern China

open access: yesFrontiers in Earth Science, 2021
Natural fractures play an important role in the seepage system of Paleogene sandstone reservoirs at Nanpu Sag. Characteristics and formation mechanisms of natural fractures and stress-sensitivity permeability are comprehensively investigated and their ...
Zhaosheng Wang   +8 more
doaj   +1 more source

Bilateral Proximal Tibia Stress Fractures through Persistent Physes

open access: yesCase Reports in Orthopedics, 2018
Introduction. Fatigue fractures are stress fractures resulting from repetitive trauma in areas of stress concentration. Prior case reports and studies have described stress fractures through persistent physes about the olecranon and distal fibula, as ...
John J. Carroll   +4 more
doaj   +1 more source

Research on the propagation mechanism of hydraulic fractures in infill horizontal wells

open access: yesFrontiers in Earth Science, 2022
In recent years, infill horizontal well technology has been used to develop oil and gas in the remaining oil areas of unconventional low-permeability reservoirs. However, the initial fractures in parent wells will affect the hydraulic fractures formed by
Erhu Liu   +5 more
doaj   +1 more source

Effect of stress path on shearing resistance of sandstone fractures [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2020
Triaxial and direct shear tests have been performed on rough (tension-induced) and smooth (saw-cut) fractures in Phra Wihan sandstone specimens. Two stress paths are used for the triaxial shear testing: constant confining stress and constant mean ...
Pakpoom Naphudsa   +2 more
doaj   +1 more source

Fracture characteristics under the coupling effect of tectonic stress and fluid pressure: A case study of the fractured shale oil reservoir in Liutun subsag, Dongpu Sag, Bohai Bay Basin, Eastern China

open access: yesPetroleum Exploration and Development, 2015
Based on the integrated study on core description, fluid inclusions and basin modeling, and considering the coupling effect of tectonic stress and fluid pressure, the characteristics of fractures were analyzed in the inter-salt fractured shale oil ...
Yang LUO   +3 more
doaj   +1 more source

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