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Trabecular bone score

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https://www.readbyqxmd.com/read/29680509/opioids-delay-healing-of-spinal-fusion-a-rabbit-posterolateral-lumbar-fusion-model
#1
Nikhil Jain, Khaled Himed, Jeffrey M Toth, Karen C Briley, Frank M Phillips, Safdar N Khan
BACKGROUND CONTEXT: Opioid use is prevalent for management of pre- and post-operative pain in patients undergoing spinal fusion. There is evidence that opioids downregulate osteoblasts in-vitro, and one previous study found that morphine delays the maturation and remodeling of callus in a rat femur fracture model. However, the effect of opioids on healing of spinal fusion has not been investigated before. Isolating the effect of opioid exposure in humans would be limited by the numerous confounding factors that affect fusion healing...
April 19, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29679731/changes-in-pediatric-dxa-measures-of-musculoskeletal-outcomes-and-correlation-with-quantitative-ct-following-treatment-of-acute-lymphoblastic-leukemia
#2
Sogol Mostoufi-Moab, Andrea Kelly, Jonathan A Mitchell, Joshua Baker, Babette S Zemel, Jill Brodsky, Jin Long, Mary B Leonard
We previously reported significant gains in pQCT measures of tibia trabecular bone mineral density (BMD) and cortical structure following completion of therapy in children and adolescents with acute lymphoblastic leukemia (ALL). The objective of this study was to examine changes in DXA measures used in clinical practice and expressed as Z-scores using robust national reference data. Children and adolescents, ages 5 to 18 years were enrolled within 2 (median 0.8) years of completing ALL therapy. DXA total-body less-head bone mineral content (TBLH-BMC), and spine, total hip, femoral neck, and 1/3rd radius areal BMD (aBMD) were assessed in 45 participants at enrollment and 12-months later...
April 18, 2018: Bone
https://www.readbyqxmd.com/read/29678393/positive-correlations-between-free-vitamin-d-and-bone-variables-in-a-group-of-young-lebanese-women
#3
Abir Alwan, Maroun Rizkallah, Ghassan Maalouf, Joseph Matta, Fabienne Frenn, Angélique Barakat, Falah Bachour, Amer Sebaaly, Abdel-Jalil Berro, Nathalie Al Rassy, Mirza Howayek, Hassane Zouhal, Rawad El Hage
Optimizing bone mass in adulthood is of great importance to prevent the occurrence of osteoporosis in later age. Vitamin D is an essential component of bone health. Low-serum vitamin D is associated with low bone mineral density (BMD), which is an important predictor of fracture risk. However, most cells, apart from renal tubular cells, are exposed to free rather than to total 25-hydroxyvitamin D. Whether free vitamin D would be a better marker than total vitamin D is still under debate. The aim of the present study was to explore the relationships between serum total vitamin D, vitamin D-binding protein (BP), free vitamin D, and bone parameters in a group of young Lebanese women...
March 26, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29673377/total-hip-arthroplasty-to-treat-acetabular-protrusions-secondary-to-rheumatoid-arthritis
#4
Ping Zhen, Xusheng Li, Shenghu Zhou, Hao Lu, Hui Chen, Jun Liu
BACKGROUND: The treatment of acetabular protrusions during total hip arthroplasty of patients with rheumatoid arthritis is difficult. A lack of bone stock, deficient medial cup support, and medialization of the joint center in those with protrusio acetabuli must be addressed during acetabular reconstruction. The purpose of this study was to assess the short-term clinical results of total hip arthroplasty in patients with severe acetabular protrusions secondary to rheumatoid arthritis...
April 19, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29669177/mutations-that-alter-the-carboxy-terminal-propeptide-cleavage-site-of-the-chains-of-type-i-procollagen-are-associated-with-a-unique-osteogenesis-imperfecta-phenotype
#5
Tim Cundy, Michael Dray, John Delahunt, Jannie Dahl Hald, Bente Langdahl, Chumei Li, Marta Szybowska, Shehla Mohammed, Emma L Duncan, Aideen M McInerney-Leo, Patricia G Wheeler, Paul Roschger, Klaus Klaushofer, Jyoti Rai, MaryAnn Weis, David Eyre, Ulrike Schwarze, Peter H Byers
Osteogenesis imperfecta (OI) is a genetic bone disorder characterized by fractures, low bone mass, and skeletal fragility. It most commonly arises from dominantly inherited mutations in the genes COL1A1 and COL1A2 that encode the chains of type I collagen. A number of recent reports have suggested that mutations affecting the carboxyl-terminal propeptide cleavage site in the products of either COL1A1 or COL1A2 give rise to a form of OI characterized by unusually dense bones. We have assembled clinical, biochemical, and molecular data from 29 individuals from 8 families with 7 different mutations affecting the C-propeptide cleavage site...
April 18, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29661684/trabecular-bone-score-and-hip-structural-analysis-in-patients-with-atypical-femur-fractures
#6
Sanne K C Buitendijk, Denise M van de Laarschot, Alexandra A A Smits, Fjorda Koromani, Fernando Rivadeneira, Thomas J Beck, M Carola Zillikens
Bisphosphonate use has declined dramatically in recent years, partly because of fear of rare side effects like atypical femur fractures (AFFs). It is therefore desirable to have a diagnostic method to identify those at risk of AFF to prevent this serious complication. We compared trabecular microarchitecture and hip geometry between 30 patients with AFF and 141 controls of similar age and sex, using bisphosphonates. Trabecular bone score (TBS) and hip structural analysis (HSA) were used to assess trabecular microarchitecture and macroscopic hip geometry from dual-energy X-ray absorptiometry images of the lumbar spine and hip, respectively...
March 22, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29659886/bone-parameters-in-anorexia-nervosa-and-athletic-amenorrhea-comparison-of-two-hypothalamic-amenorrhea-states
#7
Nurgun Kandemir, Meghan Slattery, Kathryn E Ackerman, Shreya Tulsiani, Amita Bose, Vibha Singhal, Charumathi Baskaran, Seda Ebrahimi, Mark Goldstein, Kamryn Eddy, Anne Klibanski, Madhusmita Misra
Purpose: We have reported low bone mineral density (BMD), impaired bone structure, and increased fracture risk in anorexia nervosa (AN) and normal-weight, oligo-amenorrheic athletes (OA). However, data directly comparing compartment-specific bone parameters in AN, OA and controls are lacking. Methods: 426 females 14-21.9 years old were included; 231 AN, 94 OA and 101 normal-weight eumenorrheic controls. Dual energy x-ray absorptiometry was used to assess areal BMD (aBMD) of the whole body less head (WBLH), spine, and hip...
April 5, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29657026/muscular-maximal-strength-indices-and-bone-variables-in-a-group-of-elderly-women
#8
Riad Nasr, Nathalie Al Rassy, Eric Watelain, Joseph Matta, Fabienne Frenn, Maroun Rizkallah, Ghassan Maalouf, César El Khoury, Abdel-Jalil Berro, Rawad El Hage
The aim of the present study was to explore the relations between muscular maximal strength indices and bone parameters (bone mineral density [BMD], hip geometry indices, and trabecular bone score [TBS]) in a group of elderly women. This study included 35 healthy elderly women whose ages range between 65 and 75 yr (68.1 ± 3.1 yr). BMD (in gram per square centimeter) was determined for each individual by dual-energy X-ray absorptiometry at the whole body, lumbar spine (L1-L4), total hip (TH), and femoral neck (FN)...
March 22, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29657024/vitamin-d-and-trabecular-bone-score-in-a-group-of-young-lebanese-adults
#9
Abir Alwan, Nathalie Al Rassy, Abdel-Jalil Berro, Maroun Rizkallah, Joseph Matta, Fabienne Frenn, Falah Bachour, Amer Sebaaly, Ghassan Maalouf, Hassane Zouhal, Rawad El Hage
The relationship between vitamin D and trabecular bone score (TBS) in young adults remains unclear. The aim of this study was to explore the relationship between 25-hydroxyvitamin D [25(OH)D] serum levels and TBS in a healthy adult population. A total of 54 men and 61 women whose ages range from 18 to 35 participated in the present study. Participants with 25(OH)D insufficiency (between 21 and 29 ng/mL) were 55.7%, and those with 25(OH)D deficiency (≤20 ng/mL) were 11.4%. TBS positively correlated with 25(OH)D in men (r = 0...
March 23, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29619541/systemic-mastocytosis-identified-in-two-women-developing-fragility-fractures-during-lactation
#10
J J Zhu, D Mahendran, M H Lee, J Seah, S Fourlanos, S Varadarajan, A Ghasem-Zadeh, R J MacIsaac, E Seeman
Two women presenting with fragility fractures during lactation had bone mineral density (BMD) reduced more greatly than usually associated with lactation. The first woman was 29 years old with a BMD T-score of - 3.2 SD at the spine and- 2.0 SD at the femoral neck. The second woman was 35 years old with a BMD T-score of - 4.5 SD at the spine and - 2.8 SD at the femoral neck. Both women had increased cortical porosity and reduced trabecular density. Investigation identified an elevated serum tryptase, and marrow biopsy confirmed the diagnosis of mastocytosis...
April 4, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29594386/mutational-analysis-uncovers-monogenic-bone-disorders-in-women-with-pregnancy-associated-osteoporosis-three-novel-mutations-in-lrp5-col1a1-and-col1a2
#11
S Butscheidt, A Delsmann, T Rolvien, F Barvencik, M Al-Bughaili, S Mundlos, T Schinke, M Amling, U Kornak, R Oheim
Pregnancy was found to be a skeletal risk factor promoting the initial onset of previously unrecognized monogenic bone disorders, thus explaining a proportion of cases with pregnancy-associated osteoporosis. Therapeutic measures should focus in particular on the normalization of the disturbed calcium homeostasis in order to enable the partial skeletal recovery. INTRODUCTION: Pregnancy-associated osteoporosis (PAO) is a rare skeletal condition, which is characterized by a reduction in bone mineral density (BMD) in the course of pregnancy and lactation...
March 29, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29557867/early-clinical-and-radiographic-outcomes-of-trabecular-metal-total-ankle-replacement-using-a-transfibular-approach
#12
Alexej Barg, Clayton C Bettin, Albert H Burstein, Charles L Saltzman, Jeremy Gililland
BACKGROUND: In the last 2 decades, total ankle replacement has gained greater acceptance as a treatment option in patients with end-stage ankle osteoarthritis. However, there is a lack of literature on total ankle replacement using a lateral transfibular approach. Therefore, we sought to report early clinical and radiographic results for a patient cohort treated with total ankle replacement using a lateral transfibular approach, performed by a single surgeon. METHODS: From October 2012 to December 2014, 55 primary total ankle arthroplasties using the Zimmer Trabecular Metal Total Ankle implant were performed in 54 patients (29 male and 25 female; mean age, 67...
March 21, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29556678/the-trabecular-bone-score-is-associated-with-bone-mineral-density-markers-of-bone-turnover-and-prevalent-fracture-in-patients-with-end-stage-kidney-disease
#13
J Aleksova, S Kurniawan, G J Elder
Fracture risk increases in end-stage kidney disease (ESKD), but bone mineral density (BMD) measurement is less predictive of risk than in the general population. In this study of patients with ESKD, a lower trabecular bone score (TBS), indicative of microarchitectural deterioration, was associated with higher bone turnover markers and prevalent non-vertebral fracture. INTRODUCTION: Declining renal function carries increased fracture risks, but BMD is less predictive of fracture for dialysis patients than the general population...
March 19, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29534215/associations-between-trabecular-bone-score-and-vertebral-fractures-in-patients-with-axial-spondyloarthritis
#14
Kwi Young Kang, In Je Kim, Sung-Hwan Park, Yeon Sik Hong
Objectives: To compare trabecular bone scores (TBS) between axial SpA (axSpA) patients with and without vertebral fractures and investigate associations between TBS and vertebral fractures. Methods: Two hundred and fifty-five patients fulfilling the imaging arm of the Assessment of SpondyloArthritis International Society axSpA criteria were enrolled. TBS and BMD were assessed using dual-energy X-ray absorptiometry. Vertebral fracture of the thoracic and lumbar spine was defined according to the Genant criteria...
March 9, 2018: Rheumatology
https://www.readbyqxmd.com/read/29528866/the-utility-and-limitations-of-using-trabecular-bone-score-with-frax
#15
Patrick Martineau, William D Leslie
PURPOSE OF REVIEW: Trabecular bone score (TBS) is a texture index derived from the lumbar spine dual-energy X-ray absorptiometry which can assess skeletal quality and provide information about fracture risk independent of bone mineral density (BMD). TBS is useful in assessing osteoporotic fracture risk, with lower TBS values associated with increased fracture risk. In this article, we review the current state of TBS, including its utility and limitations in the assessment and management of osteoporosis, with particular emphasis on the recent literature...
March 9, 2018: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/29523155/the-selective-cathepsin-k-inhibitor-miv-711-attenuates-joint-pathology-in-experimental-animal-models-of-osteoarthritis
#16
Erik Lindström, Biljana Rizoska, Karin Tunblad, Charlotte Edenius, Alison M Bendele, Don Maul, Michael Larson, Neha Shah, Valerie Yoder Otto, Chris Jerome, Urszula Grabowska
BACKGROUND: MIV-711 is a highly potent and selective cathepsin K inhibitor. The current article summarizes the therapeutic effects of MIV-711 on joint pathology in rabbits subjected to anterior cruciate ligament transection (ACLT), and the prophylactic effects on joint pathology in dogs subjected to partial medial meniscectomy, two surgical models of osteoarthritis (OA). METHODS: Starting 1 week after surgery, rabbits were dosed daily via oral gavage with either MIV-711 or vehicle (n = 7/group) for 7 weeks...
March 9, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29511673/structural-and-morselized-allografting-combined-with-a-cementless-cup-for-acetabular-defects-in-revision-total-hip-arthroplasty-a-4-to-14-year-follow-up
#17
Hou-Tsung Chen, Cheng-Ta Wu, Tsan-Wen Huang, Hsin-Nung Shih, Jun-Wen Wang, Mel S Lee
Using morselized and structural allograft to restore bone stock for massive acetabular bone defect in revision total hip arthroplasty (THA) is an appealing procedure. However, concerns about inability to achieve long-term stability following allograft resorption remained. From 2003 to 2012, 59 hips in 58 patients undergoing revision THA for Paprosky type II or III acetabular defects were retrospectively reviewed. The acetabular defects were managed with deep-frozen morselized and structural allografts, and a press-fit cementless cup along with supplementary screws...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29484473/clinical-and-radiological-outcomes-of-trabecular-metal-systems-and-antiprotrusion-cages-in-acetabular-revision-surgery-with-severe-defects-a-comparative-study
#18
Irene Isabel López-Torres, Pablo Sanz-Ruíz, Coral Sánchez-Pérez, Ricardo Andrade-Albarracín, Javier Vaquero
INTRODUCTION: Acetabular revision surgery poses a challenge due to the increased frequency of severe defects and poor quality of the remaining bone. We compare the clinical and radiological outcomes, complications, and survival of two systems commonly used in complex acetabular revisions (AAOS types II, III, and IV): trabecular metal system (TM) and Burch-Schneider antiprotrusion cages (BS). METHODS: Eighty-four patients underwent acetabular revision surgery with TM or BS in our centre between 2008 and 2014...
February 26, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29471485/trabecular-bone-score-as-an-assessment-tool-to-identify-the-risk-of-osteoporosis-in-axial-spondyloarthritis-a-case-control-study
#19
Kwi Young Kang, Hye Yeon Goo, Sung-Hwan Park, Yeon Sik Hong
Objectives: To compare the trabecular bone score (TBS) between patients with axial spondyloarthritis (axSpA) and matched normal controls and identify risk factors associated with a low TBS. Methods: TBS and BMD were assessed in the two groups (axSpA and control) using DXA. Osteoporosis risk factors and inflammatory markers were also assessed. Disease activity and radiographic progression in the sacroiliac joint and spine were evaluated in the axSpA group. Multivariate linear regression analysis was performed to identify risk factors associated with TBS...
March 1, 2018: Rheumatology
https://www.readbyqxmd.com/read/29468478/does-trabecular-bone-score-tbs-improve-the-predictive-ability-of-frax-%C3%A2-for-major-osteoporotic-fractures-according-to-the-japanese-population-based-osteoporosis-jpos-cohort-study
#20
Junko Tamaki, Masayuki Iki, Yuho Sato, Renaud Winzenrieth, Etsuko Kajita, Sadanobu Kagamimori
This study examined whether bone microarchitecture determined by Trabecular Bone Score (TBS) is associated with the risk of major osteoporotic fractures independent of FRAX® in Japanese women. Participants included 1541 women aged ≥ 40 at baseline. Major osteoporotic fractures during a 10-year follow-up period were documented by the Japanese Population-based Osteoporosis Cohort Study. TBS and areal bone mineral density (aBMD) were calculated for the same spinal regions at baseline. To compare the predictive ability of FRAX® model when used alone versus in combination with TBS, Akaike information criterion (AIC), the area under the receiver operating characteristic curve (AUC), net reclassification improvement (NRI), and integrated discrimination improvement (IDI) were calculated...
February 21, 2018: Journal of Bone and Mineral Metabolism
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