View clinical trials related to Osteoporosis.
Filter by:Osteoporosis is a systemic disease characterized by a reduction in bone mineral density (BMD) and qualitative alteration of the skeleton, resulting in increased bone fragility and fracture risk. The epidemiological impact of osteoporosis is extremely high. Proper diagnosis and clinical management of osteoporosis are critical to reducing the incidence of fragility fractures and preventing their complications. The diagnosis is generally confirmed by instrumental analysis of bone mineral density. The standard method is X-ray bone densitometry (DXA), which allows diagnosis based on criteria defined by the World Health Organization (WHO) by virtue of the T-score. DXA is a relatively quick and inexpensive examination with low exposure to ionizing radiation. However, this method has limitations in detecting fracture risk, and in addition, not all patients are properly referred for DXA services, which, among other things, require specific criteria to be reimbursed by the National Health System. Currently, computed tomography (CT) scanning is the most widely used three-dimensional diagnostic modality in clinical practice, and the number of investigations performed in high-income countries is continuously growing. Quantitative assessment of bone mineral density by CT is possible by proper calibration of the machine for the purpose of converting the CT numbers (or Hounsfield units) measured by the scanner into BMD units.
Fragility fractures increase among elderly patients worldwide, representing a global burden in terms of disability and care expenditure. Osteoporosis is asymptomatic up to the moment in which a first fracture occurs, reason why it is often underdiagnosed. Even after that, further fractures do occurr, as osteoporosis is often untreated. Several programs have been introduced worldwide to prevent secondary fractures among the population at risk (e.g., International Osteoporosis Foundation's Capture the Fracture), and several risk factors are being investigated to generate a predictive score. However, accurate validation is needed to make these scores reliable. In this retrospective observational study, we aim to validate a predictive score trained on a population of elderly patients with a cohort of patients who underwent hip fracture surgery in a high-volume orthopedic center in the Region of Lombardy.
In this project, IDEAL-IQ technology and PDFF and R2* image-based imaging methods are used to analyze the intrinsic relationship between preoperative vertebral bone marrow fat content, magnetic susceptibility properties of bone tissue and bone strength (bone volume and bone mass), to explore the mechanism of vertebral re-fracture after PVP / PKP, and to explore the imaging markers for the risk of postoperative vertebral re-fracture after PVP / PKP. To construct a precise and individualized risk assessment model of vertebral re-fracture after PVP/ PKP by combining clinical risk factors, preoperative quantitative MRI parameters (PDFF, R2*) and imaging characteristics, so as to achieve the goal of objectively and accurately evaluating the risk of vertebral re-fracture at the early stage of the postoperative period (1 year).
Compared with traditional calcium supplements, liposome calcium can increase the bioavailability of calcium and reduce the waste caused by gastric acid destruction of calcium. This allows calcium to be released slowly in the intestines, reducing the risk of indigestion or other side effects caused by excessive intake at one time. Liposomal calcium can be taken orally directly. It does not need to be dissolved in water before taking like other calcium supplements, making it more convenient to use. Based on the above advantages, liposomal calcium is a relatively safe and easy-to-absorb calcium supplement, suitable for long-term use, and can meet the body's demand for calcium. According to the recommendations of the World Health Organization, the daily calcium intake for adults should be 1000-1300 mg. In Taiwan, the seventh edition of the revised reference intake of dietary nutrients for Chinese people recommends that the daily intake for adults should be 1,000 mg. The calcium dose used in this study was 500 mg. The purpose was to explore whether the sustained-release characteristics of liposome coating technology can improve the absorption rate after consuming calcium powder and achieve better bioavailability. It is expected that microlipids made by lecithin can Lipid calcium powder increases its maintenance time in the blood, thereby increasing the supplementary effect of calcium, and is an alternative to calcium supplements.
Bone Density Evaluation by means of the Ultrasound Technology Named Radiofrequency Echographic Multi Spectrometry (REMS) in Comparison With DXA Technique. Clinical Center involved in the study:IRCCS Orthopedic institute Galeazzi - Sant'Ambrogio The clinical study will evaluate the intra- and inter-operator repeatability of the REMS,(Radiofrequency Echographic Multi Spectrometry) ultrasound diagnostic technology implemented in the EchoStation device (Echolight Spa, Lecce) and the diagnostic accuracy in comparison with DXA (used as standard reference).
A survey of people to identify risk factors for osteoporosis, which include age, gender, lifestyle, diet, physical activity, the presence or absence of somatic pathology. Diagnosis of osteoporosis by dual-energy X-ray absorptiometry. Conducting a correlation analysis of the relationship of the data obtained.
Osteoporosis is a chronic skeletal disease which leads to a decrease in bone strength which increases the risk of fractures. Clinically overt hypercortisolism leads to hypertension, central obesity, diabetes and osteoporosis. More recently, even the condition of mild and asymptomatic hypercortisolism has been associated with increased prevalence of chronic complications of cortisol excess and mortality. In patients with osteoporosis this form of hypercortisolism may remain occult (hidden hypercortisolism, HidHyCo). Although asymptomatic, however, this subtle cortisol excess is associated with an increased risk of osteoporosis and fragility fractures. Moreover, HidHyCo prevalence seems to be increased in osteoporotic patients. The HidHyCo case finding is of utmost importance. However, given the high prevalence of bone fragility and the relatively low diagnostic accuracy of the currently available tests for the HidHyCo detection, a mass screening for HidHyCo is considered unthinkable. As now, no guidelines are available for addressing the HidHyCo screening in osteoporosis. Therefore, the aims of the present study are the following: i) to assess the HidHyCo prevalence in a sample of osteoporotic patients; ii) to compare the clinical characteristics between osteoporotic/osteopenic patients with HidHyCo and those without HidHyCo in order to determine the clinical characteristics more frequently associated with the HidHyCo presence and to identify those osteoporotic patients worthy of HidHyCo screening; iii) to further investigate bone quality and turnover in HidHyCo patients, to characterize HidHyco patients from a molecular and genetic point of view and to evaluate the pathogenetic mechanisms explaining the negative effects of endogenous cortisol excess on bone health in these patients and the potential role of the genetic background and of the gut microbiome. The HidHyCo could be present in a not negligible percentage of osteopenic/osteoporotic patients. In these patients, osteoporosis and, if present, other comorbidities can improve by the surgical resection of the adrenal or pituitary adenoma if feasible, or by the use of drugs able to modulate cortisol secretion or glucocorticoid sensitivity. Moreover, the case-finding could be reserved in those patients at higher risk of having HidHyCo, therefore, reducing the costs of a scarcely specific mass screening.
The objective of this observational cohort study is to provide comprehensive evaluation and early warning for elderly patients with chronic diseases. The main question it aims to answer is: How to explore effective evaluation methods for diseases in elderly patients based on the coexistence of multiple diseases and high individual heterogeneity? How to explore the key indicators and influencing factors of adverse events in elderly patients.. Participants will be followed up at 1, 3, 6, 9, and 12 months to obtain adverse event information.
Bone mineral density is an important measurement to detect osteoporosis. The goal of this clinical trial is to compare bone mineral density measurements in CT examinations and DXA scans. The main question it aims to answer is: - How good is the measurement of bone mineral density in the new photon-counting CT in comparison to DXA - How can we optimize the CT scan for bone mineral density Participants will undergo: - Clinically indicated CT scan on day of inclusion - Study related DXA scan on a separate appointment
The goal of this retrospective/observational study is to compare the clinical outcomes between the high-cumulative-dose group and the low- cumulative-dose group of oral/inhaled corticosteroid in the long-term management of asthma patients. The main hypothesis are: i. High cumulative dose of corticosteroid is related to the prevalence of osteoporosis/osteoporosis in the long-term management of adult asthma. ii. High cumulative dose of corticosteroid can affect populations that have a high-risk of osteoporosis (females over 50 years of age). iii. High cumulative dose of corticosteroid is related to the prevalence of diabetes mellitus, hypertension, and hyperlipidemia in the long-term management of adult asthma. iv. High cumulative dose of corticosteroid affects bone metabolism-related diagnostic tests and laboratory values and the prescription rate of bone metabolism-related medications.