Active clinical trials for "Osteoporosis"

Developing an MRI protocol at 1.5 T allowing quantification of the hematopoietic, fatty and trabecular moieties of marrow. An ideal protocol would differentiate red marrow from neoplastic cellular infiltration, and detect loss of trabecular bone. This study assesses the feasibility of a multiple gradient echo sequence for differentiation of water and fat constituents of marrow, combined with T2* mapping to interrogate the trabecular component The investigators hypothesize that these techniques will allow better identification of lesion type than routine MR sequences, and can be used to quantitatively characterize myelomatous marrow replacement, with iliac crest biopsy (which is routinely performed in the diagnosis of myeloma) as gold standard. Fluoro-deoxyglucose (FDG)/PET CT imaging can detect FDG uptake in active myeloma and is obtained routinely for certain cohorts of patients with myeloma. PET/CT is commonly used in both initial whole body assessment and in monitoring remission. PET has been found to be about 59% sensitive and 75% specific for detection of myeloma . Myelomatous lesions are detected on MRI by the replacement of marrow fat. Routine MRI however is limited by scope/field of view, usually evaluating marrow in a single anatomic region (such as an extremity, the pelvis or spine). To assess the diffuse marrow involvement in MM, whole body MRI imaging potentiates near global assessment of the marrow, which aids in evaluating tumor burden, and may be useful in staging.

Background: The Taiwanese FRAX® (Fracture Risk Assessment Tool) calculator is available online for clinical use. Our Taiwanese Osteoporosis Clinical Treatment Guidelines suggests using the American high risk cut-points for considering treatment but also suggests deriving domestic cut-points from cost-effective approach. Establishing cost-effective domestic cut-points for policy suggestions coupled with mobile devices with wireless access would potentially increase the usage of FRAX® tool. Objectives: 1) Using literature review to establish cost-effectiveness FRAX® cut-points. 2) To assess the effectiveness of mobile devices assisted FRAX® tool based osteoporosis diagnostic and management model. 3) To provide FRAX® based reimbursement policy suggestions. Methods: 1) Investigators will use FRAX®, cost-effectiveness and other key words to search Pubmed and international osteoporosis guidelines to better understand the clinical applications of FRAX® in other countries. Investigators will also search epidemiological data for osteoporosis, facture, quality of life and cost to establish domestic cost-effeteness, and translational approach FRAX® cut-points. 2) Three targeting populations from National Taiwan University Hospital (NTUH) are selected for prospective study (Group A: geriatric health exam clinics with American cut-points, group B: orthopedic clinics with translational approach cut-points and group C: endocrine clinics with cost-effectiveness cut-points,). A mobile device with app application coupled with the FRAX® tool is used by a trained research assistant during clinic waiting periods to screen and enroll high risk (75 from each clinic) adults with informed consents. Participants are referred to geriatric clinics for systemic osteoporosis diagnoses and managements. Percentage of participants that meet the current NHI medication reimbursement regulation and percentage of self-pay medications are calculated. Analysis is stratified by age and gender. 3) The impacts of 3 different cut-points on increment NHI reimbursement are estimated. An osteoporosis expert group meeting is to be held for FRAX® based osteoporosis medication reimbursement modifications to the NHI and the Department of Health. Expected Outcomes: 1) To establish the mobile device assisted FRAX® based osteoporosis screening and management model. 2) Base on the study results and expert consensus, investigators will provide policy suggestions of FRAX® based reimbursement modifications.

The aim of this study was to investigate the levels of RANKL and Osteoprotegerin, and their relationship in gingival crevicular fluid of post-menopausal women with osteoporosis/osteopenia and chronic periodontitis simultaneously and evaluate the effect that the use of bisphosphonates in periodontal disease. Study hypothesis: "The osteoporosis / osteopenia in postmenopausal women patients with periodontal disease affect the ratio RANKL / OPG in gingival crevicular fluid samples favoring osteoclastogenesis processes "

Bone responds according to the load placed on it. In this study, investigators want to know if exercise that loads the body in exercises, like walking or jogging (Ground Reaction Forces: GRF), affects bone differently than exercises that load the joints, like weight lifting (Joint Reaction Forces: JRF). Participants will exercise at least 3 times a week for 6 months. Measures of bone strength and mass, muscular strength, and aerobic fitness will be taken at the beginning and the end of the 6 month program. Period blood samples will be taken for future analysis of blood markers.

Evaluate Survivorship for the Biomet® Comprehensive® Reverse Shoulder Mini Baseplate.

Osteoporosis is the most common disease of bone and characterized firstly by low bone mass and secondly, impaired bone microarchitecture structure resulting in reduced strength and increased risk of fracture. Osteoporosis is divided into: primary (Postmenopausal Osteoporosis Osteoporosis & elderly and senile osteoporosis) and secondary. The most common form is postmenopausal osteoporosis. It occurs in women after menopause and is associated with decreased estrogen production, which normally occurs at this age women Osteoporosis usually occurs after age 50, it is very common in women than in men, and its frequency increases with advancing age.

The purpose of this clinical investigation was to collect clinical evidence of the safety and efficacy of the OsseoScrew System. The OsseoScrew System is intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion. The study was designed to compare the safety and efficacy of OsseoScrew compared to any other commercially available fenestrated pedicle screw system augmented with PMMA for posterior spinal fixation after surgical correction of spinal deformity or pathology.

To determine the magnitude and rate of bone mass deficits following initiation of glucocorticoid therapy for the treatment of pediatric leukemia, rheumatic conditions and nephrotic syndrome, we propose a 6 year, prospective study in 12 academic, tertiary care centres across Canada. The investigators hypothesize that glucocorticoid-treated children with leukemia, rheumatic conditions and nephrotic syndrome will fail to accrue bone mass at a normal rate, and that deficits in mineral accrual will occur in a glucocorticoid dose- and duration-dependent fashion. We also hypothesize that the fracture incidence will increase with concomitant reductions in bone mass.

Study is being done to determine if it is possible to use saliva to measure bone specific proteins and predict bone turnover which could be used in the treatment of osteoporosis.

The purpose of this study is to assess the impact of disease management interventions on bone mineral density (BMD) screening rates and osteoporosis treatment rates in women age 65 years or older.