keyword
MENU ▼
Read by QxMD icon Read
search

Adjacent Segment

keyword
https://www.readbyqxmd.com/read/28241723/-efficacy-of-coflex-in-the-treatment-of-lumbar-spondylolisthesis
#1
Y Hai, X L Meng, D Y Li, X N Zhang, Y S Wang
Objective: To study the clinical results of Coflex and lumbar posterior decompression and fusion in the treatment of lumbar degenerative spondylolisthesis at L(4-5). Methods: Thirty-eight patients with Grade Ⅰ degenerative spondylolisthesis, from January 2008 to December 2011 in Beijing Chaoyang Hospital, Capital Medical University were reviewed, and patients were divided into two groups by randomness. Group A was treated with Coflex and group B with pedicle instrumentation and interbody fusion. Fifteen patients were included in group A, and 23 patients were included in group B...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28241721/-radiographic-assessment-of-vertebral-artery-injury-in-anterior-cervical-surgery-in-healthy-adults
#2
H L Wang, L Jiang, F Z Lyu, X S Ma, X L Xia, J Y Jiang
Objectives: To study the relationship between the anatomical parameters of transverse foramen and intervertebral discs in the cross-section of the cervical spine in healthy adults, and to evaluate the risk of vertebral artery injury in the anterior cervical spine surgery. Methods: There were 24 healthy adults(12 male, 12 female) underwent neck CT angiography with clear vertebral artery and the adjacent structure imaging from June to December 2014 in Huashan Hospital, Fudan University. The anatomical parameters of vertebral artery V2 segment with lower cervical vertebrae and intervertebral discs were measured by cross-sectional images of C(3-6)...
March 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28240311/incorporation-of-the-influenza-a-virus-na-segment-into-virions-does-not-require-cognate-non-coding-sequences
#3
Bernadette Crescenzo-Chaigne, Cyril V S Barbezange, Stéphane Léandri, Camille Roquin, Camille Berthault, Sylvie van der Werf
For each influenza virus genome segment, the coding sequence is flanked by non-coding (NC) regions comprising shared, conserved sequences and specific, non-conserved sequences. The latter and adjacent parts of the coding sequence are involved in genome packaging, but the precise role of the non-conserved NC sequences is still unclear. The aim of this study is to better understand the role of the non-conserved non-coding sequences in the incorporation of the viral segments into virions. The NA-segment NC sequences were systematically replaced by those of the seven other segments...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28235860/active-shortening-protects-against-stretch-induced-force-deficits-in-human-skeletal-muscle
#4
Anjali L Saripalli, Kristoffer B Sugg, Christopher L Mendias, Susan V Brooks, Dennis R Claflin
Skeletal muscle contraction results from molecular interactions of myosin "crossbridges" with adjacent actin filament binding sites. The binding of myosin to actin can be "weak" or "strong", and only strong binding states contribute to force production. During active shortening, the number of strongly-bound crossbridges declines with increasing shortening velocity. Forcibly stretching a muscle that is actively shortening at high velocity results in no apparent negative consequences whereas stretch of an isometrically (fixed-length) contracting muscle causes ultrastructural damage and a decline in force-generating capability...
February 23, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28222402/impact-of-anchor-type-on-porcine-lumbar-biomechanics-finite-element-modelling-and-in-vitro-validation
#5
Martin Brummund, Vladimir Brailovski, Yvan Petit, Yann Facchinello, Jean-Marc Mac-Thiong
BACKGROUND: Rigid posterior implants used for spinal stabilization can be anchored to the vertebrae using pedicle screws or screws combined with transverse process hooks. In the present study, a finite element model of a porcine lumbar spine instrumented with screws and hooks is presented and validated. METHODS: The porcine lumbar spine model was validated using in-vitro measurements on six porcine specimens. Validation metrics included intervertebral rotations (L1 to L6) and nucleus pressure in the topmost cranial instrumented disc...
February 14, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28221177/semirigid-waved-rod-system-for-the-treatment-of-the-degenerative-lumbar-diseases
#6
Lei Wang, Dasheng Lin, Weitao Zou, Hui Liu, Kejian Lian
BACKGROUND: The semirigid pedicle screw instrumentation has gained wide popularity in recent decennium in lumbar fusion surgery. However, few data were documented to compare the clinical efficacy between semirigid and traditional rigid pedicle screw systems. MATERIALS AND METHODS: A total of 96 patients with degenerative lumbar diseases were selected to perform operations between 2008 and 2013. The patients were prospectively randomized into 2 groups: 50 patients were managed by semirigid waved rod systems and 46 patients were intervened by traditional rigid straight stiff rod systems...
February 17, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28220062/anatomical-and-molecular-properties-of-long-descending-propriospinal-neurons-in-mice
#7
Jamie R Flynn, Victoria L Conn, Kieran A Boyle, David I Hughes, Masahiko Watanabe, Tomoko Velasquez, Martyn D Goulding, Robert J Callister, Brett A Graham
Long descending propriospinal neurons (LDPNs) are interneurons that form direct connections between cervical and lumbar spinal circuits. LDPNs are involved in interlimb coordination and are important mediators of functional recovery after spinal cord injury (SCI). Much of what we know about LDPNs comes from a range of species, however, the increased use of transgenic mouse lines to better define neuronal populations calls for a more complete characterisation of LDPNs in mice. In this study, we examined the cell body location, inhibitory neurotransmitter phenotype, developmental provenance, morphology and synaptic inputs of mouse LDPNs throughout the cervical and upper thoracic spinal cord...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28214490/saphenous-vein-wall-thickness-in-age-and-venous-reflux-associated-remodeling-in-adults
#8
Nicos Labropoulos, Kelli Leilani Summers, Ignacio Escotto Sanchez, Joseph Raffetto
OBJECTIVE: This prospective study was designed to determine the great saphenous vein (GSV) wall thickness in age-related and venous reflux-associated remodeling. METHODS: GSV wall thickness was measured in the thigh and calf using a duplex ultrasound 17-MHz transducer. Interobserver and intraobserver variability studies were performed. Two healthy control groups, each with 10 individuals (20 limbs), were selected on the basis of age. Group 1 had a mean age of 21 years, and group 2 had a mean age of 64 years...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28213519/an-extra-amino-acid-residue-in-transmembrane-domain-10-of-the-gaba-transporter-gat-1-is-required-for-efficient-ion-coupled-transport
#9
Oshrat Dayan, Anu Nagarajan, Raven Shah, Assaf Ben-Yona, Lucy R Forrest, Baruch I Kanner
The GABA transporter GAT-1 mediates electrogenic transport of its substrate together with sodium and chloride. It is a member of the neurotransmitter:sodium:symporters, which are crucial for synaptic transmission. Compared to all other neurotransmitter:sodium:symporters, GAT-1 and the other members of the GABA transporter subfamily, all contain an extra amino acid residue at or near a conserved glycine in transmembrane segment 10. Therefore, we studied the functional impact of deletion and replacement mutants of Gly-457, and its two adjacent residues in GAT-1...
February 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28208934/enteric-duplication-cyst-leading-to-volvulus-an-unusual-cause-of-acute-intestinal-obstruction-a-case-report
#10
Raju Rangaswamy, Kuotho T Nyuwi, Chabungbam Gyan Singh, Ty Apila Sangtam, Lalhruaitluanga Varte
Enteric Duplication Cysts (EDC) is a rare congenital malformation, usually found in mesenteric side of Gastrointestinal (GI) tract. Generally patients present with non-specific symptoms depending on size and location of the cyst in GI tract. EDC presenting as small bowel volvulus is a rare clinical entity. Herein, we are reporting a 16-year-old adolescent girl who presented to Emergency Department (ED) with the features of acute bowel obstruction with septicemia. Patient underwent exploratory laparotomy which revealed dilated, twisted, gangrenous bowel due to a cystic lesion adjacent to the mesenteric side...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207949/alcohol-use-patterns-and-dsm-5-alcohol-use-disorder-on-both-sides-of-the-us-mexico-border
#11
Thomas K Greenfield, Yu Ye, E Anne Lown, Cheryl J Cherpitel, Sarah Zemore, Guilherme Borges
Alcohol consumption patterns on the US-Mexico border and their relationships with DSM-5 Alcohol Use Disorders (AUDs) have been understudied. Yet, effects of drinking by Mexican-origin individuals may differ between cities on vs. off the border both in the US and Mexico. We characterize prior 12-months drinking patterns, and examine their relationships with AUD, in border and off-border cities of Texas and adjacent Mexican states METHODS: Data come from the US-Mexico Study of Alcohol and Related Conditions (UMSARC) involving 2,336 Mexican Americans in Texas and 2,460 Mexicans in bordering states of Nuevo Leon and Tamaulipas in Mexico...
February 16, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28207762/minimally-invasive-procedure-reduces-adjacent-segment-degeneration-and-disease-new-benefit-based-global-meta-analysis
#12
Xiao-Chuan Li, Chun-Ming Huang, Cheng-Fan Zhong, Rong-Wei Liang, Shao-Jian Luo
OBJECTIVE: Adjacent segment pathology (ASP) is a common complication presenting in patients with axial pain and dysfunction, requiring treatment or follow-up surgery. However, whether minimally invasive surgery (MIS), including MIS transforaminal / posterior lumbar interbody fusion (MIS-TLIF/PLIF) decreases the incidence rate of ASP remains unknown. The aim of this meta-analysis was to compare the incidence rate of ASP in patients undergoing MIS versus open procedures. METHODS: This systematic review was undertaken by following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement...
2017: PloS One
https://www.readbyqxmd.com/read/28207657/3-tesla-kinematic-mri-of-the-cervical-spine-for-evaluation-of-adjacent-level-disease-after-monosegmental-anterior-cervical-discectomy-and-arthroplasty-results-of-2-year-follow-up
#13
Steffen K Fleck, Soenke Langner, Christian Rosenstengel, Rebecca Kessler, Marc Matthes, Jan-Uwe Müller, Inga Langner, Sascha Marx, Henry W S Schroeder
STUDY DESIGN: We prospectively evaluated adjacent disc levels after anterior cervical discectomy and arthroplasty (ACDA) using kinematic magnetic resonance imaging (MRI) and plain functional radiographs. OBJECTIVE: ACDA is an established treatment for degenerative cervical disc disease. The objective of this study was to evaluate the use of kinematic MRI for assessing the range of motion (ROM) before and after ACDA compared with plain functional radiographs and to evaluate adjacent degenerative disc disease (aDDD) at mid-term follow-up...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28207654/long-term-clinical-outcomes-of-cervical-disc-arthroplasty-a-prospective-randomized-controlled-trial
#14
Willa R Sasso, Joseph D Smucker, Maria P Sasso, Rick C Sasso
STUDY DESIGN: Prospective, randomized, single-center, clinical trial. OBJECTIVE: To prospectively examine the 7- and 10-year outcomes of cervical arthroplasty to anterior cervical discectomy and fusion (ACDF). SUMMARY OF BACKGROUND DATA: Degeneration of the cervical discs causing radiculopathy is a frequent source of surgical intervention, commonly treated with ACDF. Positive clinical outcomes are associated with arthrodesis techniques, yet there remains a long-term concern for adjacent segment change...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28202040/subcellular-localization-and-interactions-of-infectious-salmon-anemia-virus-isav-m1-and-nep-as-well-as-host-hsc70
#15
Wenting Zhang, Chengzhi Cai, Li Lin, Yizhi Jane Tao, Meilin Jin
BACKGROUND: Infectious salmon anemia virus (ISAV) is an important fish pathogen that causes high mortality in farmed Atlantic salmon. The ISAV genome consists of eight single-stranded, negative-sense RNA segments. The six largest segments contain one open reading frame (ORF) each, and encode three polymerase proteins, nucleoprotein, fusion protein, and hemagglutinin esterase protein. The two smallest segments contain more than one ORF each. The segment 7 encodes non-structural protein 1 (NS1) and nuclear export protein (NEP), while segment 8 encodes matrix protein 1 and 2 (M1 and M2)...
February 15, 2017: Virology Journal
https://www.readbyqxmd.com/read/28195071/spatial-differences-of-matrix-metalloproteinase-2-and-matrix-metalloproteinase-9-within-abdominal-aortic-aneurysm-wall-and-intraluminal-thrombus
#16
A Siennicka, M Zuchowski, M Kaczmarczyk, M Cnotliwy, J S Clark, M Jastrzebska
Formation of an abdominal aortic aneurysm is a complex process involving aortic wall degradation. The matrix metalloproteinases (MMPs) mainly involved in this process are MMP-2 and MMP-9. Most aneurysms contain an intraluminal thrombus. It is suggested that the thrombus' thickness correlates with the risk of aneurysm rupture and may be a new prognostic factor. The purpose of the present study was to investigate enzyme protein levels in thick (A1) and thin (B1) segments of the thrombus and aneurysm wall sections A (adjacent to A1) and B (adjacent to B1)...
December 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28194836/quantitative-characterization-of-the-carbon-carbon-composites-components-based-on-video-of-polarized-light-microscope
#17
Yixian Li, Lehua Qi, Yongshan Song, Xujiang Chao
The components of carbon/carbon (C/C) composites have significant influence on the thermal and mechanical properties, so a quantitative characterization of component is necessary to study the microstructure of C/C composites, and further to improve the macroscopic properties of C/C composites. Considering the extinction crosses of the pyrocarbon matrix have significant moving features, the polarized light microscope (PLM) video is used to characterize C/C composites quantitatively because it contains sufficiently dynamic and structure information...
February 13, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28194225/net-a-new-framework-for-the-vectorization-and-examination-of-network-data
#18
Jana Lasser, Eleni Katifori
BACKGROUND: The analysis of complex networks both in general and in particular as pertaining to real biological systems has been the focus of intense scientific attention in the past and present. In this paper we introduce two tools that provide fast and efficient means for the processing and quantification of biological networks like Drosophila tracheoles or leaf venation patterns: the Network Extraction Tool (NET) to extract data and the Graph-edit-GUI (GeGUI) to visualize and modify networks...
2017: Source Code for Biology and Medicine
https://www.readbyqxmd.com/read/28193137/risk-factors-for-adjacent-segment-degeneration-after-iliac-screw-fixation-in-lumbar-degenerative-kyphoscoliosis
#19
Sang-Il Kim, Kee-Yong Ha, Dong-Whan Suh, In-Soo Oh
PURPOSE: To analyze pre- and postoperative spinopelvic parameters and sagittal profiles in lumbar degenerative kyphoscoliosis (LDK) patients who underwent surgery using iliac screw (IS) and the incidence and risk factor of radiological adjacent segment degeneration (ASD). METHODS: A total of 32 patients, who had undergone surgical correction and lumbar/thoracolumbar fusion with pedicle screws and IS instrumentation for LDK with a minimum 2-year follow-up, were included...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28192498/correction-preserving-posterior-complex-can-prevent-adjacent-segment-disease-following-posterior-lumbar-interbody-fusion-surgeries-a-finite-element-analysis
#20
Yun-Peng Huang, Cheng-Fei Du, Cheng-Kung Cheng, Zheng-Cheng Zhong, Xuan-Wei Chen, Gui Wu, Zhe-Chen Li, Jin-Duo Ye, Jian-Hua Lin, Li Zhen Wang
[This corrects the article DOI: 10.1371/journal.pone.0166452.].
2017: PloS One
keyword
keyword
56989
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"