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Wyświetlanie 1-10 z 152
Tytuł:
Tibial stress injuries : location, severity, and classification in magnetic resonance imaging examination
Autorzy:
Pacho, Ryszard
Pacho, Szymon
Gmachowska, Agata Maria
Majek, Aleksandra
Feldman, Beata
Żabicka, Magdalena
Opis:
Purpose: To describe and illustrate the spectrum of magnetic resonance imaging (MRI) findings of tibial stress injuries (TSI) and propose a simplified classification system. Material and methods: Retrospective analysis of MRI exams of 44 patients with clinical suspicion of unilateral or bilateral TSI, using a modified classification system to evaluate the intensity and location of soft-tissue changes and bone changes. Results: Most of the patients were young athletic men diagnosed in late stage of TSI. Changes were predominantly found in the middle and distal parts of tibias along medial and posterior borders. Conclusions: TSI may be suspected in young, healthy patients with exertional lower leg pain. MRI is the only diagnostic method to visualise early oedematic signs of TSI. Knowledge of typical locations of TSI can be helpful in proper diagnosis before its evolution to stress fracture.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
The fluid flow modeling procedure including a critically stressed fracture analysis of coalbed methane reservoir: a case study of Upper Silesian Coal Basin, Poland
Autorzy:
Kępiński, Michał
Ryder, Paweł
Dudek, Jacek
Podsobiński, Daniel
Tematy:
coal bed methane
critically stressed fractures
fractures
fracturing treatment
Upper Silesian Coal Basin
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Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Powiązania:
https://bibliotekanauki.pl/articles/2202858.pdf  Link otwiera się w nowym oknie
Opis:
The geomechanical modeling turned out to be an essential component of the hydrocarbon exploration assisting reduction of risk of drilling issues and optimization of hydraulic fracturing treatment. This study provides a workflow of critically stressed fracture (CSF) analysis dedicated for coal layers. The main focus of the paper is applying the 1D mechanical models and following modelling of hydraulic fracturing treatment to describe the fracture behavior under the impact of the stresses at the wellbore scale. Another objective of presented study is demonstration of benefits of 1D and 3D CSF analysis to understand fracture contribution to gained volume of hydrocarbon after fracturing of coal seam. Interpretation of fracture orientation and their behavior is vital to effective development of coal bed methane (CBM) resources as the CSF can be responsible for considerable part of CBM production. Natural fractures and faults contribute to fluid flow through rock. It is often noted that natural fractures may not be critically stressed at ambient stress state. However, during stimulation the optimally oriented natural fracture sets have an inclination to become critically stressed. Hence, understanding of the recent stress state and fracture orientations is significant for well planning and fracturing design. The outcome of this study are comprehensive 1D mechanical Earth models (MEMs) for analyzed wells and explanation of behavior of identified CSF under variable stress state as well as understanding of the connectivity of natural fractures within zone subjected to fracturing treatment.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Clinical and Radiological Outcome of Complex Proximal Tibia Fractures Managed with Hybrid/Ilizarov Fixator with or without Minimal Internal Fixation
Autorzy:
Hegde, Atmananda S.
Madegowda, Arkesh
Khanna, Vikrant
Rao, Seetharam
Tematy:
proximal tibia
fractures
hybrid fixator
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Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Powiązania:
https://bibliotekanauki.pl/articles/28409353.pdf  Link otwiera się w nowym oknie
Opis:
Background. Complex high grade proximal tibia fractures with associated extensive soft tissue injury pose a management challenge. The timing of surgery and fracture fixation options depend upon the extent of soft tissue damage. Post-operative complications such as wound breakdown, infection and infected non-union are common in such cases managed early with open reduction and internal fixation. Such fractures can be treated with primary closed reduction and Ilizarov/hybrid fixator application. Materials and methods. It is a retrospective cross sectional study conducted at two tertiary care multispecialty hospitals to report the mid-term clinical and radiological outcomes of complex high grade proximal tibia fractures. These injuries were managed by closed reduction and external fixation with/without minimal internal fixation as a definitive procedure and outcome measures were checked with serial radiographs and functional scores at a regular interval of follow up. 17 patients with Schatzker’s type 5 or 6 proximal tibia fractures with soft tissue compromise were operated on at two tertiary care referral centres from 2017 to 2019. These cases were operated on by two experienced trauma surgeons. Periodic follow-up was done and radiological and functional progression noted from case records. Results. Average time to union was noted to be 12.59 weeks and mean time of fixator removal was 21.4 weeks. At the end of 1 year of follow-up, average range of motion was 121.76 degrees, average WOMAC score was 74.81(63-82) and KOOS score was 78.24(63-85). Conclusions. 1. Hybrid/Ilizarov fixator method is a safe way of fixing high energy proximal tibia fractures. It is associated with a good functional outcome, less soft tissue complications and allows early weight bearing. 2. We recommend this method of treatment for complex high grade proximal tibia fractures.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proteomic analysis of plasma profiles in children with recurrent bone fractures
Autorzy:
Rusińska, Agnieszka
Świątkowska, Maria
Koziołkiewicz, Wiktor
Skurzyński, Szymon
Golec, Joanna
Chlebna-Sokół, Danuta
Tematy:
bone fractures
proteomic plasma profile
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Wydawca:
Polskie Towarzystwo Biochemiczne
Powiązania:
https://bibliotekanauki.pl/articles/1039851.pdf  Link otwiera się w nowym oknie
Opis:
The aim of the study is proteomic analysis of the plasma profile in children with recurrent bone fractures. The study involved 16 children: 6 patients with recurrent low-energy fractures and normal bone mass and 10 with osteogenesis imperfecta. In the analysis of the protein profile, the two-dimensional protein electrophoresis was used (Ettan DALT II, Amersham Bioscience). The images of protein gels were compared with controls. The protein spots with changed expression were cut from the gel and the amino acid sequence was analyzed with the mass spectrometry method (Q-Tof PremierTM API MASS SPECTROMETR, Waters) for protein identification. The most prevalent protein with changed expression, with respect to controls, was haptoglobin observed in 6 patients with a severe form of osteogenesis imperfecta. Increased haptoglobin concentration in these patients was confirmed by the ELISA method. Peptides corresponding to alpha-1 acid glycoprotein and serum amyloid P-component, apolipoprotein A-I, and transthyretin were detected in one, two and three children, respectively. Conclusions: 1) The results show increased haptoglobin which may be suggestive of an inflammatory component taking part in the course of osteogenesis imperfecta. 2) Further studies to explain the possible relationship of this protein with increased bone fragility are necessary.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Osteoporosis: a social problem in the elderly population
Autorzy:
Kucharska, Ewa
Tematy:
osteoporosis
elderly
fractures
social inequalities
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Wydawca:
Akademia Ignatianum w Krakowie
Powiązania:
https://bibliotekanauki.pl/articles/1197955.pdf  Link otwiera się w nowym oknie
Opis:
RESEARCH OBJECTIVE: The aim of this review is to present a broader scope on osteoporosis – both as a medical problem and as a major social burden. THE RESEARCH PROBLEM AND METHODS: Osteoporosis is a systemic skeletal disease, characterized by low bone mass, leading to increased bone fragility and fractures. It does not only lead to major medical expenses, lower health-related quality-of-life but also strains the population with significant social burden. As modern science is intensively exploring the problem of osteoporosis, new research articles expanding our knowledge on this disease come out weekly. This growing body of research calls for an up-to-date review of the existing state of knowledge on osteoporosis. THE PROCESS OF ARGUMENTATION: This manuscript presents and overview on osteoporosis and associated problems such as fractures in the following order (1) Etiology and pathogenesis of osteoporosis, (2) Osteoporosis risk factors, (3) Epidemiology of osteoporosis, (4) Aging of the Polish population, (5) Clinical consequences of osteoporosis, (6) Criteria of the World Health Organization (WHO) for Caucasian women after menopause, (7) Morbidity and mortality associated with osteoporotic fractures, (8) Risk factors related to the collapse of the condition of osteoporotic patients, (9) Bone fragility and falls, (10) Recognizing osteoporosis, (11) Prevention and treatment of osteoporosis, (12) Cost of treating fractures, (13) Fracture liaison service, (14) Senior care, (15) Purpose of modern geriatrics, (16) Social inequalities and osteoporosis. RESEARCH RESULTS: The two major determinants of risk in the development of osteoporosis are peak bone mass and rate of bone loss. These two determinants are influenced by a number of genetic (non-modifiable) and environmental (partly modifiable, and modifiable) factors. Osteoporosis is becoming increasingly prevalent with the aging of the world population. Worldwide, more than 200 million people are suffering from osteoporosis, and 1 in 2 women and 1 in 4 men over 50 will have an osteoporosis-related fracture in their lifetime. About 5% of falls result in fractures, half of which are proximal femur fractures. Out of all falls leading to fractures, 10‑25% result in injury or requirement of specialized medical care. Falls are one of the main causes of disability and the fifth most common cause of death in people over 75 years of age. CONCLUSIONS, INNOVATIONS AND RECOMMENDATIONS: This review provides a concise overview om osteoporosis as a linked medical and social problem. It also identified a number of knowledge gaps necessary to fill in order to progress our knowledge on osteoporosis diagnosis, prevention and treatment. Understanding patients’ preferences and needs will allow to align them with appropriate service models which are likely to optimize patient outcomes.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of selected demographic variables and disease on the causes and circumstances of femoral neck fracture
Autorzy:
Chorążyczewska – Dziubich, J.
Karakiewicz, A.
Bażydło, M.
Szkup, M.
Jurczak, A.
Grochans, E.
Kołban, M.
Karakiewicz, M.
Tematy:
Falls
osteoporosis
femoral neck fractures
Pokaż więcej
Wydawca:
Uniwersytet Medyczny w Białymstoku
Powiązania:
https://bibliotekanauki.pl/articles/1916519.pdf  Link otwiera się w nowym oknie
Opis:
Introduction: Proximal femoral fractures are the major cause of hospitalization due to an injury among advanced age patients. Purpose: To analyse causes of femoral neck fractures. Materials and methods: The research material included medical documentation of 203 patients with femoral neck fractures. A research method employed in this study was an analysis of the documentation. A statistical analysis was performed using the chi-square test for independence. Results: The majority of women and men sustained an injury at home or on the way (62.5% and 46.2% respectively). Patients who had an injury at work were largely men. Most injuries were related to a disease. It has been observed that women considerably more often than men mentioned slipping as the cause of an injury (21.3% and 6.9% respectively). Men, on the other hand, more often than women incurred injuries as a result of falls (19.4% and 9. 5% respectively). The structure of an injury was similar irrespective of whether patients were diagnosed as having such diseases as diabetes, cataract and osteoporosis or not. Conclusions: There is a relationship between gender and the circumstances of an injury. Women more often sustain an injury at home, and men – at work. The circumstances and causes of injuries are not significantly related to diseases such as diabetes, cataract and osteoporosis.
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 152

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