scholarly journals Assessing the Effects of Teriparatide Treatment on Bone Mineral Density, Bone Microarchitecture, and Bone Strength

2014 ◽  
Vol 96 (11) ◽  
pp. e90-1-9 ◽  
Author(s):  
Michael Kleerekoper ◽  
Susan L Greenspan ◽  
E. Michael Lewiecki ◽  
Paul D Miller ◽  
David L Kendler ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Strength ◽  
Bone Mineral ◽  
Bone Microarchitecture ◽  
Mineral Density ◽  
Teriparatide Treatment

scholarly journals Lower estimated bone strength and impaired bone microarchitecture in children with type 1 diabetes

2020 ◽  
Vol 8 (1) ◽  
pp. e001384 ◽  
Author(s):  
Gitte Fuusager ◽  
Nikolaj Milandt ◽  
Vikram Vinod Shanbhogue ◽  
Anne Pernille Hermann ◽  
Anders Jørgen Schou ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Type 1 Diabetes ◽  
Trabecular Bone ◽  
Bone Strength ◽  
Bone Mineral ◽  
Cortical Area ◽  
Bone Microarchitecture ◽  
Mineral Density ◽  
Healthy Sibling

IntroductionPatients with type 1 diabetes has an increased risk of fracture. We wished to evaluate estimated bone strength in children and adolescents with type 1 diabetes and assess peripheral bone geometry, volumetric bone mineral density (vBMD) and microarchitecture.Research design and methodsIn a cross-sectional study, high-resolution peripheral quantitative CT (HR-pQCT) was performed of the radius and tibia in 84 children with type 1 diabetes and 55 healthy sibling controls. Estimated bone strength was assessed using a microfinite element analysis solver. Multivariate regression analyses were performed adjusting for age, sex, height and body mass index.ResultsThe median age was 13.0 years in the diabetes group vs 11.5 years in healthy sibling controls. The median (range) diabetes duration was 4.2 (0.4−15.9) years; median (range) latest year Hb1Ac was 7.8 (5.9−11.8) % (61.8 (41−106) mmol/mol). In adjusted analyses, patients with type 1 diabetes had reduced estimated bone strength in both radius, β −390.6 (−621.2 to −159.9) N, p=0.001, and tibia, β −891.9 (−1321 to −462.9) N, p<0.001. In the radius and tibia, children with type 1 diabetes had reduced cortical area, trabecular vBMD, trabecular number and trabecular bone volume fraction and increased trabecular inhomogeneity, adjusted p<0.05 for all. Latest year HbA1c was negatively correlated with bone microarchitecture (radius and tibia), trabecular vBMD and estimated bone strength (tibia).ConclusionChildren with type 1 diabetes had reduced estimated bone strength. This reduced bone strength could partly be explained by reduced trabecular bone mineral density, adverse microarchitecture and reduced cortical area. We also found increasing latest year HbA1c to be associated with several adverse changes in bone parameters. HR-pQCT holds potential to identify early adverse bone changes and to explain the increased fracture risk in young patients with type 1 diabetes.

scholarly journals Continuous decline in bone mineral density and deterioration of bone microarchitecture 7 years after Roux-en-Y gastric bypass surgery

2020 ◽  
Vol 182 (3) ◽  
pp. 303-311 ◽  
Author(s):  
Stinus Hansen ◽  
Niklas Rye Jørgensen ◽  
Anne Pernille Hermann ◽  
Rene Klinkby Støving
Keyword(s):  
Bone Mineral Density ◽  
Gastric Bypass ◽  
Bone Strength ◽  
Bone Mineral ◽  
Bone Microarchitecture ◽  
Gastric Bypass Surgery ◽  
Bone Geometry ◽  
Mineral Density ◽  
Quantitative Ct ◽  
Post Surgery

Objective Roux-en-Y-gastric bypass (RYGB) surgery is an effective treatment for morbid obesity. A possible overlooked side effect is negative bone metabolic consequences. Design A seven-year prospective study following ten women and seven men after RYGB (baseline mean age 43 ± 8 years, BMI 42 ± 6 kg/m2). Methods Lumbar spine and total hip bone mineral density (BMD) using dual energy x-ray absorptiometry, distal radius and tibia bone geometry, volumetric BMD, microarchitecture and finite element estimated bone strength using high-resolution peripheral quantitative CT and biochemical markers of bone remodelling were assessed at baseline, 2 and 7 years. Results Compared to baseline, body weight was 24 ± 10% lower after 2 years and 21 ± 11% after 7 years. During the 7 years of follow-up, radius and tibia vBMD had declined 13 ± 8% and 8 ± 7% from baseline to 2 years and further 10 ± 7% and 7 ± 8% from 2 to 7 years (all P < 0.001). At both radius and tibia, cortical thickness declined and cortical porosity increased. From baseline to 7 years, there were clear indications of deteriorations of the trabecular network with fewer, more widely spaced and more in-homogeneously distributed trabeculae in both radius and tibia. Overall, declines in estimated bone strength of 16 ± 9% in radius and 16 ± 7% in tibia were observed (both P < 0.001). Conclusion Seven years after RYGB, evidence of continuous declines in BMD and ongoing deterioration of bone microarchitecture and reduced estimated bone strength compared to baseline and 2 years post-surgery results were found. These findings emphasize the need for regular assessment of bone health in patients with prior RYGB.

scholarly journals DXA parameters, Trabecular Bone Score (TBS) and Bone Mineral Density (BMD), in fracture risk prediction in endocrine-mediated secondary osteoporosis

Endocrine ◽  
2021 ◽  
Author(s):  
Enisa Shevroja ◽  
Francesco Pio Cafarelli ◽  
Giuseppe Guglielmi ◽  
Didier Hans
Keyword(s):  
Bone Mineral Density ◽  
Trabecular Bone ◽  
Bone Mineral ◽  
Trabecular Bone Score ◽  
Bone Microarchitecture ◽  
Fragility Fractures ◽  
Endocrine Disorders ◽  
Mineral Density ◽  
Increased Risk

AbstractOsteoporosis, a disease characterized by low bone mass and alterations of bone microarchitecture, leading to an increased risk for fragility fractures and, eventually, to fracture; is associated with an excess of mortality, a decrease in quality of life, and co-morbidities. Bone mineral density (BMD), measured by dual X-ray absorptiometry (DXA), has been the gold standard for the diagnosis of osteoporosis. Trabecular bone score (TBS), a textural analysis of the lumbar spine DXA images, is an index of bone microarchitecture. TBS has been robustly shown to predict fractures independently of BMD. In this review, while reporting also results on BMD, we mainly focus on the TBS role in the assessment of bone health in endocrine disorders known to be reflected in bone.

Influence of electro-acupuncture on bone mineral density, bone strength and ultrastructure in ovariectomized rats

Bone ◽  
2006 ◽  
Vol 38 (3) ◽  
pp. 27-28 ◽  
Author(s):  
Z.G. Luo ◽  
A.T. Wang ◽  
W.S. Yu ◽  
Y. Zhao ◽  
P. Hu ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Strength ◽  
Bone Mineral ◽  
Ovariectomized Rats ◽  
Mineral Density

Changes in Bone Microarchitecture and Bone Mineral Density following Experimental Osteonecrosis of the Hip in Rabbits

2006 ◽  
Vol 184 (3-4) ◽  
pp. 138-147 ◽  
Author(s):  
Jochen G. Hofstaetter ◽  
Jinxi Wang ◽  
Jun Yan ◽  
Melvin J. Glimcher
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Bone Microarchitecture ◽  
Mineral Density

475 A Novel Means of Assessing Bone Mineral Density and Bone Strength in Patients With Inflammatory Bowel Disease Undergoing CT Enterography

2013 ◽  
Vol 144 (5) ◽  
pp. S-86
Author(s):  
Nicholas K. Weber ◽  
Jeff L. Fidler ◽  
Bart L. Clarke ◽  
Sundeep Khosla ◽  
Joel G. Fletcher ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Inflammatory Bowel Disease ◽  
Bone Strength ◽  
Bone Mineral ◽  
Bowel Disease ◽  
Ct Enterography ◽  
Mineral Density ◽  
Inflammatory Bowel

scholarly journals Beyond Bone Mineral Density: A New Dual X-Ray Absorptiometry Index of Bone Strength to Predict Fragility Fractures, the Bone Strain Index

2021 ◽  
Vol 7 ◽  
Author(s):  
Fabio Massimo Ulivieri ◽  
Luca Rinaudo
Keyword(s):  
Bone Mineral Density ◽  
Density Distribution ◽  
Bone Strength ◽  
Bone Quality ◽  
Bone Mineral ◽  
Fragility Fracture ◽  
Bone Strain ◽  
Mineral Density ◽  
Strain Index ◽  
X Ray

For a proper assessment of osteoporotic fragility fracture prediction, all aspects regarding bone mineral density, bone texture, geometry and information about strength are necessary, particularly in endocrinological and rheumatological diseases, where bone quality impairment is relevant. Data regarding bone quantity (density) and, partially, bone quality (structure and geometry) are obtained by the gold standard method of dual X-ray absorptiometry (DXA). Data about bone strength are not yet readily available. To evaluate bone resistance to strain, a new DXA-derived index based on the Finite Element Analysis (FEA) of a greyscale of density distribution measured on spine and femoral scan, namely Bone Strain Index (BSI), has recently been developed. Bone Strain Index includes local information on density distribution, bone geometry and loadings and it differs from bone mineral density (BMD) and other variables of bone quality like trabecular bone score (TBS), which are all based on the quantification of bone mass and distribution averaged over the scanned region. This state of the art review illustrates the methodology of BSI calculation, the findings of its in reproducibility and the preliminary data about its capability to predict fragility fracture and to monitor the follow up of the pharmacological treatment for osteoporosis.

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