View clinical trials related to Osteoporosis.
Filter by:This is a prospective, observational single-center study. The osteoporotic patients requiring pedicle screw fixation for lumbar degenerative diseases are prospectively enrolled and followed up. This study mainly focuses on the most common osteoporosis-related surgical complications, which are pedicle screw loosening and the failure of lumbar fusion. The global and local bone mineral density(BMD) are evaluated with DXA, vertebral CT Hounsfield units(HU) before the surgery. The mechanical strength of the bone mass within the screw trajectory is also measured with a customized device during the surgery. We explored the effect of BMD on the pedicle screw loosening rate and fusion rate. In addition, the patients undergoing lumbar fixation with conventional pedicle screws without the use of bone cement are compared with those undergoing the fixation augmented with bone cement. The objective is to offer more detailed clinical evidence to guide the use of pedicle screw augmentation techniques in osteoporotic patients.
Vitamin D deficiency is proposed to be prevalent in community-dwelling older adults, with prevalence substantially higher among older adults in residential care facilities. Musculoskeletal health is compromised in older vitamin D deficient individuals and alongside frailty, sarcopenia and osteoporosis associated with ageing, affected individuals are at increased risk of falls and fractures. Vitamin D supplementation is an effective intervention for fall prevention and, along with calcium supplementation, in fracture risk reduction in institutionalised older adults. Thus, monitoring vitamin D status and treating deficiency among older adults in residential care facilities may limit the substantial economic burden associated with falls/fractures in this population. The vitamin D status of older adults in residential care facilities in Northern Ireland (NI) is currently unknown, therefore, the aim of this pilot study is to determine the vitamin D status of this cohort of the population, and to define factors which may influence vitamin D status, including body mass index (BMI), mobility out-of-doors, medication use, dementia and diet. Vitamin D status will be determined via the measurement of 25-hydroxyvitamin D using liquid chromatography-tandem mass spectrometry (LC-MS/MS). In addition, biomarkers associated with vitamin D metabolism will be measured including calcium, albumin, creatinine, urea, bone turnover markers and parathyroid hormone. Factors that may affect vitamin D status will be assessed using a health and lifestyle questionnaire and dietary vitamin D intake will be estimated via analysis of the menus in the residential care facilities. Vitamin D supplementation practices in these facilities will also be assessed via analysis of drug prescription records, focusing on differences between residents who have/have not suffered a fracture. Physical measures such grip strength, timed up and go test and T-score measurement via Achilles ultrasound machine will be taken. This study will provide data on the prevalence of vitamin D deficiency in older adults in residential care facilities within NI and identify factors that predispose residents to increased risk of deficiency. Dissemination of these findings, along with analysis of current supplementation practices, will help practitioners to develop a strategy to identify those residents with vitamin D deficiency/insufficiency and thus requiring supplementation ultimately improving health and well-being. This study will also inform the design of a larger study to investigate vitamin D status, supplementation and musculoskeletal health in older adults in residential care facilities within Northern Ireland, providing important information that will ultimately contribute towards reducing falls and fractures within this population.
The recent studies suggest that secretions from medullary adipocytes are involved in the mechanisms of bone loss in osteoporosis (OP) through their actions on neighbouring osteoforming cells, the osteoblasts. The objective of the research is the development of new cellular models representing the aging skeleton to confirm this hypothesis. To this end, osteoblasts will be isolated from human bone fragments coming from femoral heads discarded during total hip replacement surgery. The osteoblastic response to secreted factors released from medullary adipocytes of commercial origin will be analysed using conditioned media incubations. This phenotypic response will be quantified for each subject through the analysis of gene expression levels. Inter-subject phenotype variations will be related to bone density and microarchitecture data obtained by X-ray microtomography. This will assess the existence of a correlation between the osteoblast response to adipocyte secretions and the degree of osteoporosis of the subject from whom the cells are derived.
This was an open-label, single-center study to evaluate the usability of abaloparatide-sMTS by participants with low BMD.
SUMMARY TITLE: "Efficacy of Cone Beam Computed Tomography derived radiomorphometric indices in screening of postmenopausal females for osteoporosis." RATIONALE: Osteoporosis is a disease of altered bone architecture affecting primarily elderly and middle-aged women and men, particularly post-menopausal women. It is responsible for a high number of fractures and poses a high financial burden in both developed and developing countries. In India, we are in a situation where an important, high- burden disease-osteoporosis is being neglected due to lack of facilities of detection, and unawareness about the other tools of assessing bone mineral density and fracture risk. Few researchers have explored the use of radiomorphometric indices of Cone Beam Computed Tomography (CBCT) and have concluded that these can be used to differentiate between osteoporotic and non-osteoporotic patients. Increasing use of CBCT for various dental conditions, especially implant planning in older age group of patients, which is prone to osteoporosis, calls for the need for further exploration in this regard. The studies available in the literature are heterogenous in nature and reproducibility of the indices used has not been measured. Also, the sample size in each study was limited alongwith presence of selection bias. Thus, the present study will aim at assessing the efficacy of these indices in CBCT in an Indian population, the studies of which are sparse in literature, which shall aid in timely detection and therefore timely intervention to increase the quality of life and reduce morbidity and mortality occurring as a consequence of this disease. RESEARCH QUESTION: P: Population (Postmenopausal females with Osteoporosis i.e. DXA values below -2.5) I: Intervention (none) C: Control (Non-osteoporotic post-menopausal females) O: Outcome (CTCI, CTMI, CTI(S)and CTI(I) scores) T: Time Frame (1 year) S: Study Design (Cross sectional observational study) Setting in Haryana, India Are radiomorphometric indices of CBCT useful for detecting the presence of postmenopausal osteoporosis?
While effects of specific exercise interventions on bone and CVD in postmenopausal women have been demonstrated and evaluated, the effects of randomized controlled exercise interventions, particularly in middle-aged premenopausal women are sparse. Therefore, it is imperative to examine the relation between behavioral interventions and bone and cardiovascular outcomes in premenopausal women as this understudied group is at high risk for the initial stages of bone loss and cardiovascular disease development.
In the context of quarantine with COVID-19, we wish to study the experience and psychological impact in adult patients living with osteoporosis.
Discontinuation of denosumab results in a rebound response of bone turnover markers, which rise above baseline at 3 months and remain elevated until reaching again baseline levels approximately 30 months after the last dose. Bone mineral density (BMD) gains are also lost and BMD values reach original baseline values after 1-2 years off-treatment.For the above reasons, current literature recommends that patients who discontinue denosumab should continue to receive either intravenous (iv) or oral (peros) bisphosphonate therapy for some time. The study aims to investigate changes in the BMD of the lumbar spine 12 months after transitioning from denosumab to oral alendronate 70 mg in a weekly effervescent tablet formulation
This study will investigate the effect of coral calcium complex supplementation on BMD of osteoporotic individuals either when used alone or in combination with ibandronate. Ibandronate alone will also be tested in comparison to coral calcium supplementation alone or in combination.
Sickle cell disease is the most common single-gene disease in the world. Its prevalence is increasing in France, with patients' life expectancy increasing into developed countries. It mainly affects populations originating from sub-Saharan Africa. Among the chronic bone complications associated with sickle cell disease, osteoporosis has previously been highlighted but remains a poorly known complication in this very particular context. A dedicated evaluation of osteoporosis and associated risk factors in sickle cell disease patients living in France may enable better bone management of these patients in the future, as this problem, specific to their disease, is likely to become more frequent as their life expectancy increases. This is a prospective interventional and monocentric study whose objective is to describe the prevalence of osteoporosis in black patients with sickle cell disease in France