View clinical trials related to Osteoporosis.
Filter by:Osteoporosis is a health problem of major proportions. It affects more than 40 million Americans and results in more than 2 million fractures annually among Medicare patients alone. Hospital admissions for osteoporotic fractures exceed those of heart attacks, strokes and breast cancer combined. Osteoporosis is commonly considered a disease associated with menopause. This estrogen deficiency related bone loss is characterized by high bone turnover with increased resorption without commensurate changes in bone formation. It is in contrast to age-related bone loss, which starts as early as in the fourth decade of life and continues with increasing age. Age-related bone loss is usually associated with lower bone turnover and decreased bone formation is the main abnormality. Current therapies do not address age-related bone loss and the special needs of the age-related osteoporosis population is currently ignored. This is to a great degree due to difficulties associated with the bone biopsy necessary for unequivocal determination of bone turnover status. Thus, the current standard of care relies on starting with an antiresorber, which is of limited effectiveness in age-related osteoporosis, and in fact impedes the effectiveness of the appropriate anabolic medication. In a current ongoing study - Novel precision medicine approach to treatment of osteoporosis based on bone turnover. EIRB#70781Íž efforts are focused on addressing this particular problem. Our follow-up study seeks to achieve one specific aim: to compare effectiveness of Alendronate vs Teriparatide after participants have been switched at the end of treatment at year one, to the other drug at year two for the same duration of treatment.
This is a multicenter, prospective cohort study. The osteoporotic patients requiring posterior lumbar interbody fusion(LIF) with cages are prospectively enrolled and followed up. The patients undergoing LIF with the biomechanical-matched 3D-printed titanium cages (Osteo Match) are compared with those using routine PEEK cages. The hypothesis is that the use of Osteo Match cages can reduce the rate of cage subsidence and increase the rate of lumbar fusion in osteoporotic patients.
In an effect evaluation the investigators will examine the effects of participating in osteoporosis patient education. An intervention group who have already participated in patient education will be compared to a matched control group who have not participated. Effects on quality of life, fractures, daily functional capacity, self-efficacy, psychological wellbeing, physical function, balance, falls, pain management, and adherence will be examined.
Bone strength -the main determinant of bone fracture- is a function not only of bone mineral density (BMD) and microstructure, but also of its microenvironment, including bone marrow fat (BMF). The adrenal steroid dehydroepiandrosterone (DHEA) -the main precursor for estrogens and androgens in postmenopausal women- as well as bone-loading exercise, increase BMD in older women, however, their effects on BMF are largely unknown. This study has high potential to unveil the hormonal and mechanical effects of DHEA and exercise on BMF, respectively, and to elucidate longitudinal associations of BMF with bone strength in older women with bone loss.
The fracture risk of diabetic patients proves to be higher than those without diabetesdue to thehyperglycemia, usage of diabetes drugs, the changes in insulin levels and excretion, and this risk begins as early as adolescence.Many factors may be related to bone metabolism in patients with diabetes, including demographic data (e.g. age, height, weight, gender), medical history (e.g. smoking, drinking, menopause) and examination (e.g. bone mineral density, blood routine), urine routine).However, most of existing methods are qualitative assessments and do not take the interactions of the physiological factors of humans into consideration. In addition, the fracture risk of diabetic patients with osteoporosis has not been further studied before. In order to investigate the effect of patients' physiological factors on fracture risk, in the paper, we used a hybrid model combining XGBoost with deep neural network to predict the fracture risk of diabetic patients with osteoporosis.
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.
This is a prospective,observational single-center study. The osteoporotic patients requiring posterior lumbar interbody fusion(PLIF) with cages at the lowest fusion segment are prospectively enrolled and followed up. The patients undergoing PLIF with the 3D-printed porous titanium alloy cages are compared with those using PEEK cages. The hypothesis is that the use of 3D-printed porous titanium alloy cages can reduce the rate of pedicle screw loosening and increase the rate of lumbar fusion in osteoporotic patients.
Investigators will prospectively include 40 postmenopausal women with secondary osteoporosis due to primary hyperparathyroidism who have refused surgery. Participants will be randomized in two groups and treated either with zoledronic acid 5 mg iv once a year or with denosumab 60 mg sc every 6 months. Investigators will compare the effect of both drugs on bone turnover markers and basic laboratory parameters after 3, 12 and 24 months of treatment, and on the bone mineral density after 12 and 24 months of treatment. All participants will take cholecalciferol 800 - 1000 IU daily.
A specialized osteoporosis clinic has existed in our hospital since 2010. The descriptive retrospective analysis of patients included in this pathway was the subject of a first study on patients included between January 2010 and January 2011 and reported to the Congress of the French Society of Rheumatology (SFR) in December 2011, then a second study on patients included between January 2012 and December 2016, presented as an e-poster at the SFR Congress in December 2017 and in a poster at the American Society of Bone and Mineral Research Conference (ASBMR) in October 2018 and published in 2019 in Archives of Osteoporosis. The effectiveness specialized osteoporosis clinics is the subject of numerous publications. It therefore seems important to evaluate the effectiveness of our management, 3 years from the date of inclusion of patients in the osteoporosis clinic of our hospital.
The goal of this translational study is to establish a newly emerging CT-based tool for the characterization of changes in bone micro-architecture and assessment of their implications for fracture-risk in a population of COPD patients at risk for osteoporosis. The tool will be suitable and generalizable across emerging CT scanners from different vendors, and it will provide a more structurally-based assessment of osteoporosis and bone loss than is provided by simple bone density measures. The study will characterize the impact of different COPD-related factors on bone structure, and their implications for fracture-risk, leading to the development of a COPD-specific model for assessment of fracture-risk that will utilize patient-specific demographic, clinical and radiographic data, and CT BMD at the spine, as well as bone structural measures at the hip and/or ankle.