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Trabecular bone score

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https://www.readbyqxmd.com/read/28326339/glucose-dependent-insulinotropic-polypeptide-gip-and-gip-receptor-gipr-genes-an-association-analysis-of-polymorphisms-and-bone-in-young-and-elderly-women
#1
Gaurav Garg, Fiona E McGuigan, Jitender Kumar, Holger Luthman, Valeriya Lyssenko, Kristina Akesson
INTRODUCTION: The gastro-intestinal hormone glucose-dependent insulinotropic polypeptide (GIP) potentiates glucose-induced insulin secretion, with bone anabolic effects through GIP receptor (GIPR) in animal models. We explore its potential in humans by analyzing association between polymorphisms (SNPs) in the GIP and GIPR genes with bone phenotypes in young and elderly women. METHODS: Association between GIP (rs2291725) and GIPR (rs10423928) and BMD, bone mineral content (BMC), bone microarchitecture, fracture and body composition was analyzed in the OPRA (75y, n = 1044) and PEAK-25 (25y; n = 1061) cohorts and serum-GIP in OPRA...
June 2016: Bone Reports
https://www.readbyqxmd.com/read/28323974/phenotypic-spectrum-in-osteogenesis-imperfecta-due-to-mutations-in-tmem38b-unravelling-a-complex-cellular-defect
#2
Emma A Webb, Meena Balasubramanian, Nadja Fratzl-Zelman, Wayne A Cabral, Hannah Titheradge, Atif Alsaedi, Vrinda Saraff, Julie Vogt, Trevor Cole, Susan Stewart, Nicola J Crabtree, Brandi M Sargent, Sonja Gamsjaeger, Eleftherios P Paschalis, Paul Roschger, Klaus Klaushofer, Nick J Shaw, Joan C Marini, Wolfgang Högler
Context: Recessive mutations in TMEM38B cause type XIV osteogenesis imperfecta (OI) by dysregulating intracellular calcium flux. Objectives: Clinical and bone material phenotype description and osteoblast differentiation studies. Design and Setting: Natural history study in paediatric research centres. Patients: Eight patients with type XIV OI. Main Outcome Measures: Clinical examinations included: bone mineral density, radiographs, echocardiography and muscle biopsy...
March 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28321531/bone-quality-in-beta-thalassemia-intermedia-relationships-with-bone-quantity-and-endocrine-and-hematologic-variables
#3
Marina Baldini, A Marcon, F M Ulivieri, S Seghezzi, R Cassin, C Messina, M D Cappellini, G Graziadei
We report the first evaluation of bone quality in 70 thalassemia intermedia (TI) patients (37 males, 33 females, age 41 ± 12 years). Thirty-three patients (47%) had been transfused, 34 (49%) had been splenectomized, 39 (56%) were on iron chelation therapy, and 11 (16%) were on hydroxyurea. Mean hemoglobin was 9.2 ± 1.5 g/dl, median ferritin 537 ng/dl (range 14-4893), and mean liver iron concentration 7.6 ± 6.4 mg Fe/g dw. Fifteen patients (21%) had endocrinopathies, and 29 (41%) had vitamin D deficiency...
March 20, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28300346/association-of-trabecular-bone-score-tbs-with-incident-clinical-and-radiographic-vertebral-fractures-adjusted-for-lumbar-spine-bmd-in-older-men-a-prospective-cohort-study
#4
John T Schousboe, Tien N Vo, Lisa Langsetmo, Brent C Taylor, Peggy M Cawthon, Ann V Schwartz, Douglas C Bauer, Eric S Orwoll, Nancy E Lane, Elizabeth Barrett-Connor, Kristine E Ensrud
The association of Trabecular Bone Score (TBS) with incident clinical and radiographic vertebral fractures in older men is uncertain. TBS was estimated from baseline spine DXA scans for 5,831 older men (mean age 73.7 years) enrolled in the Osteoporotic Fractures in Men (MrOS) study. Cox proportional hazard models were used to determine the association of TBS (per 1 SD decrease) with incident clinical vertebral fractures. Logistic regression was used to determine the association between TBS (per 1 SD decrease) and incident radiographic vertebral fracture among the subset of 4,309 men with baseline and follow-up lateral spine radiographs (mean 4...
March 16, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28288923/effects-of-alendronateon-lumbar-intervertebral-disc-degeneration-with-bone-loss-in-ovariectomized-rats
#5
Huiping Song, Yang Luo, Wenya Wang, Shuyang Li, Kai Yang, Muwei Dai, Yong Shen, Yingze Zhang, Liu Zhang
BACKGROUND CONTEXT: Osteoporosis adversely affects disc degeneration cascades, and prophylactic alendronate (ALN) helps delay intervertebral disc degeneration (IDD) in ovariectomized (OVX) rats. However, there remains no information regarding whether ALN affects IDD with bone loss. PURPOSE: This study aimed to observe the effects of ALN on degenerative discs with bone loss induced by OVX in rats. STUDY DESIGN: Controlled in vivo experiments in rodents...
March 10, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28287004/denosumab-reduces-early-migration-in-total-knee-replacement
#6
Håkan Ledin, Lars Good, Per Aspenberg
Background and purpose - Aseptic loosening is a main cause of late revision in total knee replacement (TKR). Migration of implants as measured by radiostereometric analysis (RSA) can predict future loosening. This migration is associated with bone resorption. Denosumab is a human monoclonal antibody that binds to receptors on osteoclast precursors and osteoclasts. This prevents osteoclast formation, resulting in less bone resorption in cortical and trabecular bone. We investigated whether denosumab can reduce migration of TKR, as measured with RSA...
March 13, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28285742/peripheral-quantitative-computed-tomography-pqct-measures-contribute-to-the-understanding-of-bone-fragility-in-older-patients-with-low-trauma-fracture
#7
Hongyuan Jiang, Christopher J Yates, Alexandra Gorelik, Ashwini Kale, Qichun Song, John D Wark
Dual-energy X-ray absorptiometry (DXA) as currently used has limitations in identifying patients with osteoporosis and predicting occurrence of fracture. We aimed to express peripheral quantitative computed tomography (pQCT) variables of patients with low-trauma fracture as T-scores by using T-score scales obtained from healthy young women, and to evaluate the potential clinical utility of pQCT for the assessment of bone fragility. Fracture patients were recruited from a fracture liaison service at the Royal Melbourne Hospital...
March 9, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28276598/clinical-utility-of-using-lumbar-spine-trabecular-bone-score-to-adjust-fracture-probability-the-manitoba-bmd-cohort
#8
P Martineau, W D Leslie, H Johansson, A Oden, E V McCloskey, D Hans, J A Kanis
Decreased lumbar spine trabecular bone score (TBS), a DXA-derived image texture measurement, is a risk factor for major osteoporotic fracture (MOF) and hip fracture (HF) independent of ten-year fracture probability estimated using FRAX(R) . We determined how often applying the TBS adjustment to fracture probability altered treatment qualification. Using a population-based registry containing all clinical DXA results for Manitoba, Canada, we identified 34,316 women with baseline spine and hip DXA, FRAX-based fracture probability measurements (computed with femoral neck bone mineral density), lumbar spine TBS, and minimum 5 years of observation (mean 8...
March 9, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28276294/an-evidence-based-recommendation-for-a-standardized-approach-to-detecting-metastatic-neuroblastoma-in-staging-bone-marrow-biopsies
#9
L N Parsons, G Gheorghe, K Yan, P Simpson, J A Jarzembowski
Neuroblastoma is a common malignant tumor of childhood. Accurate bone marrow (BM) evaluation for metastatic tumor is essential; however, no standardized pathologic workup exists for staging BMs. We examined the diagnostic yield of various BM components and optimal core biopsy (CB) length as part of developing evidence-based recommendations for BM evaluation. After obtaining institutional review board approval, 160 BM biopsies from 50 neuroblastoma patients were retrospectively selected. Hematoxylin and eosin-stained CB and Wright-stained aspirates were scored as positive, negative, or indeterminate...
January 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28273677/-first-results-with-a-resorbable-mgyrezr-compression-screw-in-unstable-scaphoid-fractures-show-extensive-bone-cysts
#10
Reinhard Meier, Martin Panzica
Osteosynthesis with headless compression screws is an established treatment option for unstable scaphoid fractures. Common implants are made of titanium alloy or steel and usually remain in place. Due to implant density and ferromagnetic properties, artefacts are common in postoperative imaging procedures, e.g. MRI. Now resorbable implants made of magnesium alloy (MgYREZr) have become available. They have biomechanical properties equivalent to human bone and may be used as an alternative to the nonresorbable screw systems...
March 8, 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/28267045/supplementation-with-2000-iu-of-cholecalciferol-is-associated-with-improvement-of-trabecular-bone-mineral-density-and-muscle-power-in-pediatric-patients-with-ibd
#11
Ondrej Hradsky, Ondrej Soucek, Klara Maratova, Jana Matyskova, Ivana Copova, Kristyna Zarubova, Jiri Bronsky, Zdenek Sumnik
BACKGROUND: Inflammatory bowel diseases (IBD) are associated with altered bone health and increased risk for fractures. Vitamin D deficiency is frequently found in IBD; however, the effect of vitamin D supplementation on bone health of children with IBD is poorly understood. We aimed to observe the changes in volumetric bone density and dynamic muscle functions after vitamin D substitution in a cohort of pediatric patients with IBD. METHODS: This was a prospective observational study of 55 patients (aged 5-19 years) with IBD...
April 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28261424/healing-process-of-osteonecrotic-lesions-of-the-femoral-head-following-transtrochanteric-rotational-osteotomy-a-computed-tomography-based-study
#12
Devendra Lakhotia, Siva Swaminathan, Won Yong Shon, Jong Keon Oh, Jun Gyu Moon, Chirayu Dwivedi, Suk Joo Hong
BACKGROUND: Transtrochanteric rotational osteotomy (TRO) is a controversial hip-preserving procedure with a variable success rate. The healing process of femoral head osteonecrosis after TRO has been poorly explained till now. This study aimed to evaluate the healing process of previously transposed necrotic lesion after a TRO for nontraumatic osteonecrosis of the femoral head using computed tomography (CT). METHODS: Among 52 patients (58 hips) who had preserved original femoral head after TRO, we retrospectively reviewed 27 patients (28 hips) who had undergone sequential CT scans and had no major complication following TRO...
March 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28202208/survivorship-analysis-of-eighty-revised-hip-arthroplasties-with-the-impaction-grafting-technique-using-whole-femoral-head-allografts-with-the-articular-cartilage
#13
Ahmed Fadulelmola, Efstathios Drampalos, John Hodgkinson, Mukesh Hemmady
BACKGROUND: Acetabular impaction bone grafting aims to restore anatomy in hip revision surgery. This is an effective but expensive and time-consuming technique. Usually, the articular cartilage is removed from the femoral head allograft. We aimed to reproduce the same results retaining the cartilage of the allograft. METHODS: Eighty acetabular revisions using impacted morselized bone graft retaining the articular cartilage and a cemented cup were studied retrospectively...
January 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28199411/cortical-porosity-not-superior-to-conventional-densitometry-in-identifying-hemodialysis-patients-with-fragility-fracture
#14
Bernhard Bielesz, Janina M Patsch, Lukas Fischer, Marija Bojic, Wolfgang Winnicki, Michael Weber, Daniel Cejka
Hemodialysis (HD) patients face increased fracture risk, which is further associated with elevated risk of hospitalization and mortality. High-resolution peripheral computed tomography (HR-pQCT) has advanced our understanding of bone disease in chronic kidney disease by characterizing distinct changes in both the cortical and trabecular compartments. Increased cortical porosity (Ct.Po) has been shown to be associated with fracture in patients with osteopenia or in postmenopausal diabetic women. We tested whether the degree of Ct...
2017: PloS One
https://www.readbyqxmd.com/read/28187731/strontium-ranelate-causes-osteophytes-overgrowth-in-a-model-of-early-phase-osteoarthritis
#15
Jian-Guo Chu, Mu-Wei Dai, Yu Wang, Fa-Ming Tian, Hui-Ping Song, Ya-Ping Xiao, Li-Tao Shao, Ying-Ze Zhang, Liu Zhang
BACKGROUND: Osteoarthritis (OA) involves cartilage changes as well as modifications of subchondral bone and synovial tissues. Strontium ranelate (SR), an anti-osteoporosis compound, which is currently in phase III clinical trial for treatment of OA. Evidences suggest that SR preferably deposited in osteophyte, other than in subchondral bone in early phase of OA. This phenomenon raises concern about its utility for OA treatment as a disease-modifying drug. To evaluate the effect of SR on cartilage, subchondral bone mass and subchondral trabecular bone structure in medial meniscectomized (MNX) guinea pigs...
February 10, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28175978/skeletal-effects-of-vitamin-d-deficiency-among-patients-with-primary-hyperparathyroidism
#16
J H Lee, J H Kim, A R Hong, S W Kim, C S Shin
Little is known about the association between vitamin D deficiency and the skeletal phenotypes in primary hyperparathyroidism (PHPT) patients. A low 25-hydroxyvitamin D level was associated with a low bone mineral density and deteriorated hip geometry in women with PHPT in an Asian population where vitamin D deficiency is prevalent. INTRODUCTION: Few studies have examined the effect of vitamin D deficiency on the bone health of primary hyperparathyroidism (PHPT) patients. METHODS: We investigated the skeletal effects of vitamin D deficiency in 79 PHPT patients by assessing bone mineral density (BMD), the trabecular bone score (TBS), and hip geometry, which were measured using dual-energy X-ray absorptiometry (27 men with median age 60 years [53;69]; 52 postmenopausal women with median age of 57 years [53;67])...
February 7, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28172845/p312-trabecular-bone-score-in-patients-with-inflammatory-bowel-diseases
#17
A Krajcovicova, T Hlavaty, Z Killinger, M Kuzma, I Sturdik, Z Leskova, J Payer
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28160411/active-synovitis-in-the-presence-of-osteitis-predicts-residual-synovitis-in-patients-with-rheumatoid-arthritis-with-a-clinical-response-to-treatment
#18
Jun Fukae, Kazuhide Tanimura, Masato Isobe, Akemi Kitano, Mihoko Henmi, Maria Nakai, Yuko Aoki, Fumihiko Sakamoto, Akihiro Narita, Takeya Ito, Akio Mitsuzaki, Megumi Matsuhashi, Masato Shimizu, Tamotsu Kamishima, Tatsuya Atsumi, Takao Koike
AIM: To clarify the relationship between active synovitis/osteitis and subsequent residual synovitis (R-synovitis) in patients with rheumatoid arthritis (RA). METHODS: Three hundred and twenty finger joints of 16 patients with active RA at baseline (Disease Activity Score with 28 joints - erythrocyte sedimentation rate > 3.2) who subsequently achieved clinical low disease activity or remission afterwards were analyzed. Synovial vascularity (SV) was assessed according to a semi-quantitative ultrasound score (grades 0-3)...
February 3, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28159710/trabecular-bone-score-tbs-method-and-applications
#19
P Martineau, W D Leslie
Trabecular bone score (TBS) is a texture index derived from standard lumbar spine dual energy X-ray absorptiometry (DXA) images and provides information about the underlying bone independent of the bone mineral density (BMD). Several salient observations have emerged. Numerous studies have examined the relationship between TBS and fracture risk and have shown that lower TBS values are associated with increased risk for major osteoporotic fracture in postmenopausal women and older men, with this result being independent of BMD values and other clinical risk factors...
February 1, 2017: Bone
https://www.readbyqxmd.com/read/28159459/osteoporosis-in-stickler-syndrome-a-new-family-case-with-bone-histology-study
#20
P Insalaco, E Legrand, B Bouvard, M Audran
The Stickler syndrome (SS) has been described as a "hereditary progressive arthro-ophtalmopathy" by Stickler in 1965, due to mutations on the collagen genes. Currently about 40 different genes have been identified which encode for at least 27 different collagens. The majority of mutations occur in the COL2A1 gene on chromosome 12q13 (SS type I). Mutations in COL11A1 are less frequent (SS type II). More recently, mutations in COL11A2 and in the COL9A1 gene have been reported with particular phenotypes. The main features of this autosomal inherited disease are ocular, auditory with orofacial abnormalities and early-onset osteoarthritis...
January 31, 2017: Morphologie: Bulletin de L'Association des Anatomistes
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