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https://www.readbyqxmd.com/read/29353395/comparison-of-osteoporosis-in-us-adults-with-type-1-and-type-2-diabetes-mellitus
#1
S C DeShields, T D Cunningham
PURPOSE: We examined bone mineral density (BMD) and osteoporosis prevalence in those with type 1 compared to type 2 diabetes derived from a nationally representative sample from the civilian community in the United States. METHODS: Data from the National Health and Nutrition Examination Survey (NHANES) for 2005-2006, 2007-2008, 2009-2010, and 2013-2014 were merged to obtain a large sample of diabetics at least 20 years of age with participation in the interview and medical examination...
January 20, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29353326/radiological-and-functional-outcomes-of-high-grade-spondylolisthesis-treated-by-intrasacral-fixation-dome-resection-and-circumferential-fusion-a-retrospective-series-of-20-consecutive-cases-with-a-minimum-of-2%C3%A2-years-follow-up
#2
E Ferrero, B Ilharreborde, V Mas, C Vidal, A-L Simon, K Mazda
PURPOSE: Major concern during surgery for high-grade spondylolisthesis (HGS) is to reduce lumbosacral kyphosis and restore sagittal alignment. Despite the numerous methods described, lumbosacral fixation in HGS is a challenging technique associated with high complication rate. Few series have described outcomes and most of the results are limited to lumbosacral correction without global sagittal alignment analysis. This study aims at analyzing clinical and radiological outcomes of HGS patients treated with intrasacral rods on full spine radiographs...
January 20, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29352624/anesthetic-management-of-two-parturients-with-cerebral-palsy-and-prior-selective-dorsal-rhizotomy
#3
C M Aiudi, E E Sharpe, K W Arendt, J J Pasternak, H P Sviggum
Selective dorsal rhizotomy is a surgical spine procedure used to reduce spasticity in patients with upper motor neuron dysfunction caused by conditions such as cerebral palsy. The optimal anesthetic approach for obstetric patients who have undergone a selective dorsal rhizotomy is unknown. The use and efficacy of neuraxial anesthesia in these patients has not been described. We describe the use of neuraxial anesthesia in two patients with prior selective dorsal rhizotomy. Unless contraindicated for other reasons, a neuraxial anesthetic approach appears to be an effective option in patients with a history of a selective dorsal rhizotomy...
December 15, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/29352436/posterolateral-tibial-plateau-fractures-how-to-buttress-reversed-l-posteromedial-or-the-posterolateral-approach-a-comparative-cadaveric-study
#4
Wich Orapiriyakul, Theerachai Apivatthakakul, Chanakarn Phornphutkul
INTRODUCTION: The selection of a surgical approach for buttressing posterolateral tibial plateau fractures is controversial. OBJECTIVE: This study compared the surgical exposure area between the reversed L posteromedial approach (R-PM) and the posterolateral (PL) approach using the lateral plateau width as a metric. MATERIALS AND METHODS: Twenty lower extremities from fresh frozen cadavers were included. The R-PM approach was used first and the boundary of the posterior tibial cortex exposure was marked with metal pins...
January 19, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29350593/the-natural-history-of-complete-spinal-cord-injury-a-pooled-analysis-of-1162-patients-and-a-meta-analysis-of-modern-data
#5
Najib E El Tecle, Nader S Dahdaleh, Mohamad Bydon, Wilson Z Ray, James C Torner, Patrick W Hitchon
OBJECTIVE The natural history of complete spinal cord injury (SCI) is poorly studied. The classically quoted rate of improvement or conversion for patients with American Spinal Injury Association (ASIA) grade A (ASIA A) injuries is 15%-20%; however, data supporting this rate are very limited. In this paper, the authors conducted a meta-analysis of modern data reporting on ASIA A patients and evaluated factors affecting the natural history of the disease. METHODS The authors conducted a systematic literature review of all randomized clinical trials (RCTs) and observational studies of patients with traumatic SCI...
January 19, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29349902/association-between-pre-sarcopenia-sarcopenia-and-bone-mineral-density-in-patients-with-chronic-hepatitis-c
#6
Tatiana Bering, Kiara G D Diniz, Marta Paula P Coelho, Diego A Vieira, Maria Marta S Soares, Adriana M Kakehasi, Maria Isabel T D Correia, Rosângela Teixeira, Dulciene M M Queiroz, Gifone A Rocha, Luciana D Silva
BACKGROUND: Preserved skeletal muscle is essential for the maintenance of healthy bone. Loss of bone mineral density (BMD) and muscle strength, considered a predictor of BMD, have been demonstrated in patients with cirrhosis, but they are poorly studied in chronic hepatitis C (CHC) without cirrhosis. Thus, we aimed to evaluate the prevalence of low BMD and its association with body composition, muscle strength, and nutritional status in CHC. METHODS: One hundred and four subjects [mean age, 50...
January 19, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29349782/new-species-of-the-genus-spectracanthicus-loricariidae-hypostominae-ancistrini-from-the-rio-java%C3%A3-s-rio-araguaia-basin-with-a-description-of-gross-brain-morphology
#7
C C Chamon, T N A Pereira, M B Mendonça, A Akama
A new species of Spectracanthicus is described from the Rio Javaés, Rio Araguaia basin. The new species is distinguished from its congeners (except Spectracanthicus immaculatus) by colour pattern: body dark grey to dark brown without dots or blotches (v. body colour with yellowish small dots in Spectracanthicus murinus, Spectracanthicus punctatissimus and Spectracanthicus tocantinensis and large white dots in Spectracanthicus zuanoni). It can be further distinguished from S. immaculatus by having thicker and less numerous teeth, with up to eight premaxillary and 20 dentary teeth (v...
January 18, 2018: Journal of Fish Biology
https://www.readbyqxmd.com/read/29346830/feasibility-of-navigable-percutaneous-disk-decompressor-l-disq-c-for-cervical-disk-herniation
#8
Youngki Hong, Seunghan Yoo, Nack Hwan Kim, Yushin Kim, Sangho Sohn, Sung-Young Yoon, Sangheon Lee
OBJECTIVE:  To assess the procedural efficacy and safety of a Navigable Percutaneous Disk Decompressor (L'DISQ-C) for cervical disk herniation. METHODS:  We performed intradiskal decompression on cervical spine specimens from five human cadavers using the L'DISQ-C under C-arm fluoroscopic guidance. We evaluated our success for positioning the navigable wand tip into the target region and recorded temperature variation at various distances from the wand tip in the cervical nucleus pulposus...
January 18, 2018: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/29346727/bioinspired-pressure-tolerant-asymmetric-slippery-surface-for-continuous-self-transport-of-gas-bubbles-in-aqueous-environment
#9
Chunhui Zhang, Bo Zhang, Hongyu Ma, Zhe Li, Xiao Xiao, Yuheng Zhang, Xinyu Cui, Cunming Yu, Moyuan Cao, Lei Jiang
Bio-surfaces with geometry-gradient structures or special wettabilities demonstrate intriguing performance in manipulating the behaviors of versatile fluids. By mimicking natural species, i.e., the cactus spine with a shape-gradient morphology and the Picher plant with a lubricated inner surface, we have successfully prepared an asymmetric slippery surface by following the processes of CO2-laser cutting, superhydrophobic modification, and the fluorinert infusion. The asymmetric morphology will cause the deformation of gas bubbles and subsequently engender an asymmetric driven force on them...
January 18, 2018: ACS Nano
https://www.readbyqxmd.com/read/29343756/radiological-and-clinical-differences-among-three-assisted-technologies-in-pedicle-screw-fixation-of-adult-degenerative-scoliosis
#10
Yong Fan, Jin Peng Du, Ji Jun Liu, Jia Nan Zhang, Shi Chang Liu, Ding Jun Hao
The purpose of this study was to compare the clinical and radiological differences among three advanced guided technologies in adult degenerative scoliosis. A total of 1012 pedicle screws were inserted in 83 patients using a spine robot (group A), 886 screws were implanted in 75 patients using a drill guide template (group B), and 1276 screws were inserted in 109 patients using CT-based navigation (group C). Screw positions were evaluated using postoperative CT scans according to the Gertzbein and Robbins classification...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29341831/role-of-bone-modifying-agents-in-multiple-myeloma-american-society-of-clinical-oncology-clinical-practice-guideline-update
#11
Kenneth Anderson, Nofisat Ismaila, Patrick J Flynn, Susan Halabi, Sundar Jagannath, Mohammed S Ogaily, Jim Omel, Noopur Raje, G David Roodman, Gary C Yee, Robert A Kyle
Purpose To update guideline recommendations on the role of bone-modifying agents in multiple myeloma. Methods An update panel conducted a targeted systematic literature review by searching PubMed and the Cochrane Library for randomized controlled trials, systematic reviews, meta-analyses, clinical practice guidelines, and observational studies. Results Thirty-five relevant studies were identified, and updated evidence supports the current recommendations. Recommendations For patients with active symptomatic multiple myeloma that requires systemic therapy with or without evidence of lytic destruction of bone or compression fracture of the spine from osteopenia on plain radiograph(s) or other imaging studies, intravenous administration of pamidronate 90 mg over at least 2 hours or zoledronic acid 4 mg over at least 15 minutes every 3 to 4 weeks is recommended...
January 17, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29340971/denosumab-or-oral-bisphosphonates-in-primary-osteoporosis-a-real-life-study
#12
E Cairoli, S Palmieri, G Goggi, L Roggero, M Arosio, I Chiodini, C Eller-Vainicher
PURPOSE: To compare the response to denosumab (DMAb) therapy with that of oral bisphosphonate (BISPH) treatment in postmenopausal women with primary osteoporosis (PO). METHODS: In this retrospective study, we compared data of 75 PO female patients treated for 24 months with DMab (DMAb Group, age 72.6 ± 8.9 years) with those of 75 PO patients treated with oral bisphosphonates (BISPH Group), matched for age, body mass index, femoral bone mineral density (BMD), prevalent fragility fractures and familiar history of hip fracture...
January 16, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29340241/risk-factors-for-osteoporosis-in-male-patients-with-chronic-obstructive-pulmonary-disease-in-taiwan
#13
Chu-Hsu Lin, Kai-Hua Chen, Chien-Min Chen, Chia-Hao Chang, Tung-Jung Huang, Chia-Hung Lin
Objective: To investigate the risk factors for osteoporosis in male Taiwanese patients with chronic obstructive pulmonary disease (COPD). Methods: This cross-sectional study evaluated male COPD outpatients and age-matched male subjects at a regional teaching hospital. The following data were obtained and analyzed: bone mineral density of the lumbar spine and hip on dual-energy X-ray absorptiometry, demographic characteristics, questionnaire interview results, pulmonary function test results, chest posterior-anterior radiographic findings, and biochemical and high-sensitivity C-reactive protein (hs-CRP) levels...
2018: PeerJ
https://www.readbyqxmd.com/read/29338102/circulating-serum-25-hydroxyvitamin-d-levels-and-bone-mineral-density-mendelian-randomization-study
#14
Susanna C Larsson, Håkan Melhus, Karl Michaëlsson
There is considerable discussion of the importance for increased serum 25-hydroxyvitamin D (S-25OHD) concentration associated with adequacy for bone health. Accordingly, whether long-term high S-25OHD concentration in general positively affects bone mineral density (BMD) is uncertain. We used a Mendelian randomization design to determine the association between genetically increased S-25OHD concentrations and BMD. Five single-nucleotide polymorphisms (SNPs) in or near genes encoding enzymes and carrier proteins involved in vitamin D synthesis or metabolism were used as instrumental variables to genetically predict one standard deviation increase in S-25OHD concentration...
January 16, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29337906/specific-collagen-peptides-improve-bone-mineral-density-and-bone-markers-in-postmenopausal-women-a-randomized-controlled-study
#15
Daniel König, Steffen Oesser, Stephan Scharla, Denise Zdzieblik, Albert Gollhofer
Introduction: Investigations in rodents as well as in vitro experiments have suggested an anabolic influence of specific collagen peptides (SCP) on bone formation and bone mineral density (BMD). The goal of the study was to investigate the effect of 12-month daily oral administration of 5 g SCP vs. placebo (CG: control group) on BMD in postmenopausal women with primary, age-related reduction in BMD. Methods: 131 women were enrolled in this randomized, placebo-controlled double-blinded investigation. The primary endpoint was the change in BMD of the femoral neck and the spine after 12 months...
January 16, 2018: Nutrients
https://www.readbyqxmd.com/read/29336820/micro-ct-and-micro-fe-analysis-of-pedicle-screw-fixation-under-different-loading-conditions
#16
Y Chevalier, M Matsuura, S Krüger, C Fleege, M Rickert, M Rauschmann, C Schilling
Anchorage of pedicle screw instrumentation in the elderly spine with poor bone quality remains challenging. In this study, micro finite element (µFE) models were used to assess the specific influence of screw design and the relative contribution of local bone density to fixation mechanics. These were created from micro computer tomography (µCT) scans of vertebras implanted with two types of pedicle screws, including a full region-or-interest of 10 mm radius around each screw, as well as submodels for the pedicle and inner trabecular bone of the vertebral body...
December 26, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29336496/donepezil-reverses-dendritic-spine-morphology-adaptations-and-fmr1-epigenetic-modifications-in-hippocampus-of-adult-rats-after-adolescent-alcohol-exposure
#17
Patrick J Mulholland, Tara L Teppen, Kelsey M Miller, Hannah G Sexton, Subhash C Pandey, H Scott Swartzwelder
BACKGROUND: Adolescent intermittent ethanol (AIE) exposure produces persistent impairments in cholinergic and epigenetic signaling and alters markers of synapses in the hippocampal formation, effects that are thought to drive hippocampal dysfunction in adult rodents. Donepezil (Aricept), a cholinesterase inhibitor, is used clinically to ameliorate memory-related cognitive deficits. Given that donepezil also prevents morphological impairment in preclinical models of neuropsychiatric disorders, we investigated the ability of donepezil to reverse morphological and epigenetic adaptations in the hippocampus of adult rats exposed to AIE...
January 16, 2018: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29332239/which-parameters-are-relevant-in-sagittal-balance-analysis-of-the-cervical-spine-a-literature-review
#18
REVIEW
Fong Poh Ling, T Chevillotte, A Leglise, W Thompson, C Bouthors, Jean-Charles Le Huec
INTRODUCTION: Cervical spine is part of the spine with the most mobility in the sagittal plane. It is important for surgeons to have reliable, simple and reproducible parameters to analyse the cervical. MATERIAL AND METHOD: This study is a systematic review and a critique of current parameters to help improve the study of cervical spinal balance. We conducted a systematic search of PUBMED/MEDLINE for literature published since January 2014. Only studies written in English and containing abstracts were considered for inclusion...
January 13, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29330744/c-fos-downregulation-positively-regulates-epha5-expression-in-a-congenital-hypothyroidism-rat-model
#19
Honghua Song, Yuqin Zheng, Fuying Cai, Yanyan Ma, Jingyue Yang, Youjia Wu
The EphA5 receptor is well established as an axon guidance molecule during neural system development and plays an important role in dendritic spine formation and synaptogenesis. Our previous study has showed that EphA5 is decreased in the developing brain of congenital hypothyroidism (CH) and the EphA5 promoter methylation modification participates in its decrease. c-Fos, a well-kown transcription factor, has been considered in association with brain development. Bioinformatics analysis showed that the EphA5 promoter region contained five putative c-fos binding sites...
January 12, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29330341/biomechanics-of-coupled-motion-in-the-cervical-spine-during-simulated-whiplash-in-patients-with-pre-existing-cervical-or-lumbar-spinal-fusion-a-finite-element-study
#20
H Huang, R W Nightingale, A B C Dang
OBJECTIVES: Loss of motion following spine segment fusion results in increased strain in the adjacent motion segments. However, to date, studies on the biomechanics of the cervical spine have not assessed the role of coupled motions in the lumbar spine. Accordingly, we investigated the biomechanics of the cervical spine following cervical fusion and lumbar fusion during simulated whiplash using a whole-human finite element (FE) model to simulate coupled motions of the spine. METHODS: A previously validated FE model of the human body in the driver-occupant position was used to investigate cervical hyperextension injury...
January 2018: Bone & Joint Research
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