keyword
MENU ▼
Read by QxMD icon Read
search

ALIF

keyword
https://www.readbyqxmd.com/read/28067466/anterior-lumbar-interbody-fusion-integrated-screw-cages-intrinsic-load-generation-subsidence-and-torsional-stability
#1
Yusuf Assem, Matthew H Pelletier, Ralph J Mobbs, Kevin Phan, William R Walsh
OBJECTIVE: To perform a repeatable idealized in vitro model to evaluate the effects of key design features and integrated screw fixation on unloaded surface engagement, subsidence, and torsional stability. METHODS: We evaluated four different stand-alone anterior lumbar interbody fusion (ALIF) cages with two, three, and four screw designs. Polyurethane (saw-bone) foam blocks were used to simulate the vertebral bone. Fuji Film was used to measure the contact footprint, average pressure, and load generated by fixating the cages with screws...
January 9, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28065676/rhamnolipids-from-non-pathogenic-burkholderia-thailandensis-e264-physicochemical-characterization-antimicrobial-and-antibiofilm-efficacy-against-oral-hygiene-related-pathogens
#2
Mohamed Elshikh, Scott Funston, Alif Chebbi, Syed Ahmed, Roger Marchant, Ibrahim M Banat
Biosurfactants are naturally occurring surface active compounds that have mainly been exploited for environmental applications and consumer products, with their biomedical efficacy an emerging area of research. Rhamnolipids area major group of biosurfactants that have been reported for their antimicrobial and antibiofilm efficacy. One of the main limiting factors for scaled up production and downstream applications of rhamnolipids is the fact that they are predominantly produced from the opportunistic pathogen Pseudomonas aeruginosa...
January 5, 2017: New Biotechnology
https://www.readbyqxmd.com/read/28050828/tissue-culture-for-xylem-differentiation-with-arabidopsis-leaves
#3
Masato Saito, Alif Meem Nurani, Yuki Kondo, Hiroo Fukuda
Culture systems combined with molecular biological approaches have identified various key factors regulating vascular differentiation, which makes a great contribution to development of vascular biology. Recently, we established a novel culture system for xylem cell differentiation in the model plant Arabidopsis thaliana (Arabidopsis), in which ectopic xylem cells can be induced throughout leaf disks within 3-4 days. Here we describe detailed procedures of the culture system from sample preparation to vascular cell induction culture...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28043848/surgical-treatment-of-degenerative-spondylolisthesis
#4
REVIEW
P Guigui, E Ferrero
Degenerative spondylolisthesis is a common pathology, often causing lumbar canal stenosis. There is, however, no strong consensus regarding the various medical and surgical treatments available. Surgery is indicated mainly for perceived functional impairment; when the indication is accepted, several questions determine the choice of surgical strategy. Improvement in neurological symptoms is one of the main treatment objectives. For this, it is useful to perform radicular decompression. Some authors recommend indirect decompression by interbody fusion (ALIF, TLIF, XLIF), others by means of an interspinous spacer but the most frequent technique is direct posterior decompression...
December 30, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28038691/strain-in-posterior-instrumentation-resulted-by-different-combinations-of-posterior-and-anterior-devices-for-long-spine-fusion-constructs
#5
Christopher J Kleck, Damian Illing, Emily M Lindley, Andriy Noshchenko, Vikas V Patel, Cameron Barton, Todd Baldini, Christopher M J Cain, Evalina L Burger
STUDY DESIGN: Clinically related experimental study. OBJECTIVE: Evaluation of strain in posterior low lumbar and spinopelvic instrumentation for multilevel fusion resulting from the impact of such mechanical factors as physiologic motion, different combinations of posterior and anterior instrumentation, and different techniques of interbody device implantation. SUMMARY OF BACKGROUND DATA: Currently different combinations of posterior and anterior instrumentation as well as surgical techniques are used for multilevel lumbar fusion...
January 2017: Spine Deformity
https://www.readbyqxmd.com/read/28024374/symmetry-driven-band-gap-engineering-in-hydrogen-functionalized-graphene
#6
Jakob Holm Jørgensen, Antonija Grubišić Čabo, Richard Balog, Line Kyhl, Michael N Groves, Andrew Martin Cassidy, Albert Bruix, Marco Bianchi, Maciej Dendzik, Mohammad Alif Arman, Lutz Lammich, José Ignacio Pascual, Jan Knudsen, Bjørk Hammer, Philip Hofmann, Liv Hornekaer
Band gap engineering in hydrogen functionalized graphene is demonstrated by changing the symmetry of the functionalization structures. Small differences in hydrogen adsorbate binding energies on graphene on Ir(111) allow tailoring of highly periodic functionalization structures favoring one distinct region of the moiré supercell. Scanning tunneling microscopy and X-ray photoelectron spectroscopy measurements show that a highly periodic hydrogen functionalized graphene sheet can thus be prepared by controlling the sample temperature (Ts) during hydrogen functionalization...
December 27, 2016: ACS Nano
https://www.readbyqxmd.com/read/28009577/the-species-beamline-at-the-max-iv-laboratory-a%C3%A2-facility-for-soft-x-ray-rixs-and-apxps
#7
Samuli Urpelainen, Conny Såthe, Walan Grizolli, Marcus Agåker, Ashley R Head, Margit Andersson, Shih Wen Huang, Brian N Jensen, Erik Wallén, Hamed Tarawneh, Rami Sankari, Ralf Nyholm, Mirjam Lindberg, Peter Sjöblom, Niclas Johansson, Benjamin N Reinecke, M Alif Arman, Lindsay R Merte, Jan Knudsen, Joachim Schnadt, Jesper N Andersen, Franz Hennies
SPECIES is an undulator-based soft X-ray beamline that replaced the old I511 beamline at the MAX II storage ring. SPECIES is aimed at high-resolution ambient-pressure X-ray photoelectron spectroscopy (APXPS), near-edge X-ray absorption fine-structure (NEXAFS), X-ray emission spectroscopy (XES) and resonant inelastic X-ray scattering (RIXS) experiments. The beamline has two branches that use a common elliptically polarizing undulator and monochromator. The beam is switched between the two branches by changing the focusing optics after the monochromator...
January 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/27994777/mini-open-anterior-lumbar-interbody-fusion-combined-with-lateral-lumbar-interbody-fusion-in-corrective-surgery-for-adult-spinal-deformity
#8
Chong-Suh Lee, Se-Jun Park, Sung-Soo Chung, Jun-Young Lee, Tae-Hoon Yum, Seong-Kee Shin
STUDY DESIGN: Prospective observational study. PURPOSE: To introduce the techniques and present the surgical outcomes of mini-open anterior lumbar interbody fusion (ALIF) at the most caudal segments of the spine combined with lateral lumbar interbody fusion (LLIF) for the correction of adult spinal deformity. OVERVIEW OF LITERATURE: Although LLIF is increasingly used to correct adult spinal deformity, the correction of sagittal plane deformity with LLIF alone is reportedly suboptimal...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27991591/anode-potential-influences-the-structure-and-function-of-anodic-electrode-and-electrolyte-associated-microbiomes
#9
Paul G Dennis, Bernardino Virdis, Inka Vanwonterghem, Alif Hassan, Phil Hugenholtz, Gene W Tyson, Korneel Rabaey
Three bioelectrochemical systems were operated with set anode potentials of +300 mV, +550 mV and +800 mV vs. Standard Hydrogen Electrode (SHE) to test the hypothesis that anode potential influences microbial diversity and is positively associated with microbial biomass and activity. Bacterial and archaeal diversity was characterized using 16 S rRNA gene amplicon sequencing, and biofilm thickness was measured as a proxy for biomass. Current production and substrate utilization patterns were used as measures of microbial activity and the mid-point potentials of putative terminal oxidases were assessed using cyclic voltammetry...
December 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27989724/frailty-is-associated-with-morbidity-in-adults-undergoing-elective-anterior-lumbar-interbody-fusion-surgery-alif
#10
Kevin Phan, Jun S Kim, Nathan J Lee, Sulaiman Somani, John Di Capua, Parth Kothari, Dante Leven, Samuel K Cho
BACKGROUND CONTEXT: Prior studies have suggested no significant differences in functional status and postoperative complications of elderly versus non-elderly patients undergoing posterior lumbar interbody fusion; however, similar studies have not been comprehensively investigated in the setting of anterior lumbar interbody fusion (ALIF). PURPOSE: The objective was to quantify the ability of the modified Frailty Index (mFI) to predict postoperative events in patients undergoing ALIF...
October 27, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27884744/technical-description-of-oblique-lateral-interbody-fusion-at-l1-l5-olif25-and-at-l5-s1-olif51-and-evaluation-of-complication-and-fusion-rates
#11
Kamal R M Woods, James B Billys, Richard A Hynes
BACKGROUND: The OLIF procedure is aimed at mitigating some of the challenges seen with traditional ALIF and transpsoas LLIF and allows for interbody fusion at L1-S1. PURPOSE: To describe the OLIF technique and assess the complication and fusion rates. STUDY DESIGN: A retrospective cohort study. PATIENT SAMPLE: 137 patients who underwent the oblique lateral interbody fusion (OLIF) procedure. OUTCOME MEASURES: Adverse events within 6 months of surgery: Infection, symptomatic pseudarthrosis, hardware failure, vascular injury, perioperative blood transfusion, ureteral injury, bowel injury, renal injury, prolonged postoperative ileus (greater than 3 days), incisional hernia, pseudohernia, reoperation, neurological deficits (weakness, numbness, paresthesia), hip flexion pain, retrograde ejaculation, sympathectomy affecting lower extremities, deep vein thrombosis, pulmonary embolism, myocardial infarction, pneumonia, and cerebrovascular accident...
November 21, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27853663/impact-of-surgical-approach-on-clinical-outcomes-in-the-treatment-of-lumbar-pseudarthrosis
#12
R Kirk Owens, Mladen Djurasovic, Charles H Crawford, Steven D Glassman, John R Dimar, Leah Y Carreon
Study Design Retrospective comparative cohort. Objective Pseudarthrosis following fusion for degenerative lumbar spine pathologies remains a substantial problem. Current data shows that patients who develop a pseudarthrosis have suboptimal outcomes. This study evaluates if treatment of pseudarthrosis can be affected by surgical approach. Methods Medical records of 63 female and 65 male patients (mean age 50.37) who were treated for nonunion following lumbar fusion were reviewed. Sixty patients underwent posterolateral fusion (PSF), 18 underwent PSF with transforaminal interbody fusion (TLIF), 32 underwent anterior and posterior spinal fusion (AP), and 24 underwent anterior lumbar interbody fusion (ALIF)...
December 2016: Global Spine Journal
https://www.readbyqxmd.com/read/27847576/surgical-outcomes-of-post-fusion-lumbar-flatback-deformity-with-sagittal-imbalance
#13
Jin Seong Kim, Sung Min Kim
OBJECTIVES: To review surgical results of post-fusion lumbar flatback treated with pedicle subtraction osteotomy (PSO) or Smith-Petersen osteotomies (SPOs). METHODS: Twenty-eight patients underwent osteotomies. Radiological outcomes by sagittal vertical axis (SVA), and pelvic tilt (PT), T1 pelvic angle (T1PA), and pelvic incidence (PI)-lumbar lordosis (LL) at preoperative, postoperative 1 month, and final were evaluated. Oswestry Disability Index (ODI), visual analog scale (VAS) score of back pain/leg pain, and Scoliosis Research Society-22 score (SRS-22r) were analyzed and compared...
November 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27843688/extreme-lateral-lumbar-interbody-fusion-do-the-cons-outweigh-the-pros
#14
Nancy E Epstein
BACKGROUND: Major factors prompted the development of minimally invasive (MIS) extreme lateral interbody fusion (XLIF; NuVasive Inc., San Diego, CA, USE) for the thoracic/lumbar spine. These include providing interbody stabilization and indirect neural decompression while avoiding major visceral/vessel injury as seen with anterior lumbar interbody fusion (ALIF), and to avert trauma to paraspinal muscles/facet joints found with transforaminal lumbar interbody fusion (TLIF), posterior lumbar interbody fusion (PLIF), and posterior-lateral fusion techniques (PLF)...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27843680/non-neurological-major-complications-of-extreme-lateral-and-related-lumbar-interbody-fusion-techniques
#15
Nancy E Epstein
BACKGROUND: Complications exclusive of new neurological deficits/injuries that follow extreme lateral interbody fusion (XLIF) and related lateral lumbar interbody techniques should be better recognized to determine the safety of these procedures. Unfortunately, a review of the XLIF literature did not accurately reflect the frequency of these "other complications" as few US surgeons publish such adverse events that may lead to medicolegal suits. METHODS: Major complications occurring with XLIF included sympathectomy, major vascular injuries, bowel perforations, sterile seromas, and instrumentation failures...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27824495/the-ulam-programming-language-for-artificial-life
#16
David H Ackley, Elena S Ackley
Traditional digital computing demands perfectly reliable memory and processing, so programs can build structures once then use them forever-but such deterministic execution is becoming ever more costly in large-scale systems. By contrast, living systems, viewed as computations, naturally tolerate fallible hardware by repairing and rebuilding structures even while in use-and suggest ways to compute using massive amounts of unreliable, merely best-effort hardware. However, we currently know little about programming without deterministic execution, in architectures where traditional models of computation-and deterministic ALife models such as the Game of Life-need not apply...
2016: Artificial Life
https://www.readbyqxmd.com/read/27807780/retroperitoneal-haematoma-in-a-postoperative-alif-patient-taking-rivaroxaban-for-atrial-fibrillation
#17
Praveena Deekonda, Oliver M Stokes, Daniel Chan
BACKGROUND: Novel oral anticoagulants (NOACs) are being increasingly used in the secondary prevention of thromboembolic stroke in patients with atrial fibrillation. Patients taking NOACs are difficult to manage perioperatively, and several unexpected complications have been reported in these patients. CASE REPORT: We report a case of a rivaroxaban-induced retroperitoneal haematoma in a 72-year-old man who underwent an L5/S1 anterior lumbar interbody fusion (ALIF) for grade 1 spondylolytic spondylolisthesis...
November 2, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27792409/stand-alone-anterior-lumbar-interbody-fusion-indications-techniques-surgical-outcomes-and-complications
#18
Mena Kerolus, Mazda K Turel, Lee Tan, Harel Deutsch
Anterior lumbar interbody fusion (ALIF) is a well-established technique to achieve lumbar spine fusion with various indications including degenerative disk disease, spondylolisthesis, recurrent disk herniation, adjacent level disease, pseudoarthrosis, as well as being used as part of the overall strategy to restore sagittal balance. ALIF can be an extremely useful tool in any spine surgeon's armamentarium. However, like any surgical procedure, proper patient selection is key to success. A solid understanding of the biomechanics, careful surgical planning, along with clear knowledge of the advantages and disadvantages of stand-alone ALIF will ensure optimal clinical outcome...
December 2016: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/27777161/oblique-lumbar-interbody-fusion-technical-aspects-operative-outcomes-and-complications
#19
Julian Li, Kevin Phan, Ralph Mobbs
OBJECTIVE: Anterior lumbar interbody fusion (ALIF) and lateral lumbar interbody fusion (LLIF) are commonly used approaches for lumbar spine fusion surgery, each with their own unique advantages and disadvantages. ALIF requires mobilization of the great vessels and peritoneum, while dissection of the psoas muscle in the LLIF technique is associated with post-operative neurological complications in the proximal lower limb. The anterior-to-psoas (ATP) or oblique lumbar interbody fusion (OLIF) technique is the proposed solution to accessing the L1-L5 levels without the issues encountered with ALIF and LLIF...
October 21, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27770186/fusion-rate-and-clinical-outcome-in-anterior-lumbar-interbody-fusion-with-beta-tricalcium-phosphate-and-bone-marrow-aspirate-as-a-bone-graft-substitute-a-prospective-clinical-study-in-fifty-patients
#20
Ricarda Lechner, David Putzer, Michael Liebensteiner, Christian Bach, Martin Thaler
PURPOSE: Bone graft substitutes have been successfully used in posterolateral lumbar fusion, anterior cervical fusion and animal studies. This study has been conducted to assess the safety and efficacy of β-tricalcium phosphate (β-TCP) in instrumented anterior lumbar interbody fusion (ALIF) procedure. METHODS: In a prospective clinical study, ALIF cages were prefilled with β-TCP and additionally fixated with posterior pedicle screw. Computed tomography (CT) and X-rays were performed one year after surgery...
October 21, 2016: International Orthopaedics
keyword
keyword
60192
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"