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https://www.readbyqxmd.com/read/28231653/implantless-fixation-of-a-large-osteocartilaginous-fracture-of-the-lateral-femoral-condyle-in-a-child
#1
Jitendra Maheshwari, Vikram Mhaskar, Parul Maheshwari Mhaskar
We describe for the first time a case of lateral femoral condyle fracture following a fall in a 13-year-old child that was reduced arthroscopically using a probe. It was definitively fixed with 0 vicryl sutures in a cruciate pattern after being initially stabilised with 1.5-mm Kirschner wires. Four beath pins carrying sutures were drilled at four opposing quadrants through the reduced fragment into the femur. The sutures were then tied on the lateral cortex of the femur. After fixation, the child was kept non-weight bearing for 6 weeks, partial weight bearing from 6 weeks to 12 weeks and then full weight bearing thereafter...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231648/evaluation-of-infection-after-anterior-cruciate-ligament-reconstruction-during-a-short-period
#2
Hee-June Kim, Hyun-Joo Lee, Jong-Chul Lee, Seung-Gi Min, Hee-Soo Kyung
Purpose: We encountered 7 cases (7.1%) of infection (5 deep and 2 superficial) in 98 cases of anterior cruciate ligament (ACL) reconstruction using hamstring autografts in a 17-month period. The aim of this study was to analyze the causes of infection and to introduce our treatment strategy. Materials and Methods: We investigated the shelf-life of the fixation implants, the order of surgery, previous knee surgery, infectious pathogen, treatment of infection, and results of treatment...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28231646/arthroscopic-control-for-safe-and-secure-seating-of-suspensory-devices-for-femoral-fixation-in-anterior-cruciate-ligament-reconstruction-using-three-different-techniques
#3
Seo Goo Kang, Yong Seuk Lee
Purpose: The purpose of this study was to evaluate the efficacy of our technique that allows direct visualization of seating of suspensory devices in anterior cruciate ligament (ACL) reconstruction. Materials and Methods: Three different suspensory devices (TightRope RT, RetroButton, and EndoButton) were used in ACL reconstruction using 3 different techniques (outside-in, anteromedial [AM] portal, and transtibial techniques). Positioning of a guiding material and seating pattern of the suspensory devices were evaluated according to the surgical technique and suspensory device used...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28230808/genome-sequence-of-rhodoferax-antarcticus-ant-br-t-a-psychrophilic-purple-nonsulfur-bacterium-from-an-antarctic-microbial-mat
#4
Jennifer M Baker, Carli J Riester, Blair M Skinner, Austin W Newell, Wesley D Swingley, Michael T Madigan, Deborah O Jung, Marie Asao, Min Chen, Patrick C Loughlin, Hao Pan, Yuankui Lin, Yaqiong Li, Jacob Shaw, Mindy Prado, Chris Sherman, Joseph Kuo-Hsiang Tang, Robert E Blankenship, Tingting Zhao, Jeffrey W Touchman, W Matthew Sattley
Rhodoferax antarcticus is an Antarctic purple nonsulfur bacterium and the only characterized anoxygenic phototroph that grows best below 20 °C. We present here a high-quality draft genome of Rfx. antarcticus strain ANT.BR(T), isolated from an Antarctic microbial mat. The circular chromosome (3.8 Mbp) of Rfx. antarcticus has a 59.1% guanine + cytosine (GC) content and contains 4036 open reading frames. In addition, the bacterium contains a sizable plasmid (198.6 kbp, 48.4% GC with 226 open reading frames) that comprises about 5% of the total genetic content...
February 21, 2017: Microorganisms
https://www.readbyqxmd.com/read/28230624/response-letter-to-minimally-invasive-posterior-decompression-combined-with-percutaneous-pedicle-screw-fixation-for-the-treatment-of-thoracolumbar-fractures-with-neurological-deficits
#5
https://www.readbyqxmd.com/read/28230623/safety-and-accuracy-of-freehand-versus-navigated-iliac-screws-results-from-222-screw-placements
#6
Randall J Hlubek, Kaith K Almefty, David S Xu, Jay D Turner, U Kumar Kakarla
STUDY DESIGN: Retrospective review. OBJECTIVE: To compare the safety and accuracy of the freehand technique versus stereotactic navigation for placement of iliac screws. SUMMARY OF BACKGROUND DATA: Iliac screw fixation is often used to augment lumbosacral reconstruction in advanced spine disease to increase the likelihood of successful arthrodesis. Iliac screws can be placed with image guidance, using either intraoperative fluoroscopy or computed tomography (CT) to guide navigation...
February 22, 2017: Spine
https://www.readbyqxmd.com/read/28230573/global-sagittal-imbalance-due-to-change-in-pelvic-incidence-after-traumatic-spinopelvic-dissociation
#7
Han-Dong Lee, Chang-Hoon Jeon, Nam-Su Chung, Suk-Hyeong Won
OBJECTIVES: Traumatic spinopelvic dissociation separates the spinal column from the pelvis, which usually creates lumbosacral kyphosis. We aimed to examine how the spinopelvic profiles changes after traumatic spinopelvic dissociation, and which are the relevant factors for the sagittal imbalance of the spine. DESIGN: Retrospective analysis. SETTING: Level I trauma center PATIENTS:: Thirty-nine consecutive patients who were diagnosed with traumatic spinopelvic dissociation and had a minimum 2-year radiological follow-up were included...
February 20, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28230571/infection-and-complications-following-low-velocity-intra-articular-gunshot-injuries
#8
Mai P Nguyen, Michael S Reich, Jeffrey A O'Donnell, Jonathan C Savakus, Nicholas F Prayson, Joseph F Golob, Amy A McDonald, John J Como, Heather A Vallier
OBJECTIVES: The purpose of this study is to characterize the demographics, interventions, infection rates, and other complications following intra-articular gunshot wounds. DESIGN: Retrospective review. SETTING: Level I trauma center. PATIENTS/PARTICIPANTS: Fifty-three patients with 55 civilian low-velocity intra-articular gunshot injuries with a minimum of four weeks follow-up were included in the study. Seven patients had associated vascular injuries...
February 20, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28230395/contextual-cueing-improves-attentional-guidance-even-when-guidance-is-supposedly-optimal
#9
Anthony M Harris, Roger W Remington
Visual search through previously encountered contexts typically produces reduced reaction times compared with search through novel contexts. This contextual cueing benefit is well established, but there is debate regarding its underlying mechanisms. Eye-tracking studies have consistently shown reduced number of fixations with repetition, supporting improvements in attentional guidance as the source of contextual cueing. However, contextual cueing benefits have been shown in conditions in which attentional guidance should already be optimal-namely, when attention is captured to the target location by an abrupt onset, or under pop-out conditions...
February 23, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28229521/microbial-potential-for-carbon-and-nutrient-cycling-in-a-geogenic-supercritical-carbon-dioxide-reservoir
#10
Adam J E Freedman, BoonFei Tan, Janelle R Thompson
Microorganisms catalyze carbon cycling and biogeochemical reactions in the deep subsurface and thus may be expected to influence the fate of injected supercritical (sc) CO2 following geological carbon sequestration (GCS). We hypothesized that natural subsurface scCO2 reservoirs, which serve as analogs for the long-term fate of sequestered scCO2 , harbor a "deep carbonated biosphere" with carbon cycling potential. We sampled subsurface fluids from scCO2 -water separators at a natural scCO2 reservoir at McElmo Dome, Colorado for analysis of 16S rRNA gene diversity and metagenome content...
February 22, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28229270/should-the-annulus-be-fixed-in-aortic-valve-sparing-root-replacement-with-remodeling
#11
Kojiro Furukawa, Keiji Kamohara, Junji Yunoki, Shugo Koga, Manabu Itoh, Hiroyuki Morokuma, Yosuke Mukae, Tsuyoshi Itoh, Shigeki Morita
OBJECTIVES: If the aortic root dilates after native aortic valve-sparing root reconstruction with remodeling, aortic regurgitation may recur. However, it has not been demonstrated clearly that the aortic root dilates after remodeling. METHODS: This study enrolled 15 patients who underwent an aortic valve-sparing operation with remodeling (2002-2014) but without any ventriculo-aortic junction (VAJ) fixation. Technically, special care was taken to pass the sutures through the fibrous annulus...
February 22, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28229229/management-of-unstable-distal-third-clavicle-fractures-clinical-and-radiological-outcomes-of-the-arthroscopy-assisted-conoid-ligament-reconstruction-and-fracture-cerclage-with-sutures
#12
Luis Natera Cisneros, Juan Sarasquete Reiriz
INTRODUCTION: Surgical treatment is indicated for the management of Neer type IIB fractures of the distal third of the clavicle. The aim of this study was to assess the clinical and radiological outcomes, in cases of unstable distal third clavicle fractures managed by means of an arthroscopy-assisted conoid ligament reconstruction and fracture cerclage with sutures. METHODS: Nine patients with unstable distal third clavicle fractures (Neer type IIB) managed arthroscopically by means of a conoid ligament reconstruction and fracture cerclage with sutures, between 2008 and 2012, were included...
February 22, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28229130/traits-affecting-early-season-nitrogen-uptake-in-nine-legume-species
#13
Elana Dayoub, Christophe Naudin, Guillaume Piva, Steven J Shirtliffe, Joëlle Fustec, Guénaëlle Corre-Hellou
Legume crops are known to have low soil N uptake early in their life cycle, which can weaken their ability to compete with other species, such as weeds or other crops in intercropping systems. However, there is limited knowledge on the main traits involved in soil N uptake during early growth and for a range of species. The objective of this research was to identify the main traits explaining the variability among legume species in soil N uptake and to study the effect of the soil mineral N supply on the legume strategy for the use of available N sources during early growth...
February 2017: Heliyon
https://www.readbyqxmd.com/read/28229033/an-innovative-use-of-cortoss-bone-cement-to-stabilize-a-nonunion-after-interbody-fusion
#14
Michelle Granville, Robert E Jacobson
A 65-year-old male originally had surgery for spondylolisthesis at L5-S1 in 2008 and then went on to have an L4-5 transforaminal lumbar interbody fusion (TLIF) with pedicle screw fixation from L4 to S1 and interbody graft in 2010. Despite having two surgical procedures, he continued with intractable back pain and was told he had a failed lumbar fusion. When he was evaluated with a computerized tomography (CT) scan from April 2015, it demonstrated an erosive nonunion of the L4-5 interbody fusion without incorporation of the polyetheretherketone (PEEK) cage...
January 20, 2017: Curēus
https://www.readbyqxmd.com/read/28228797/femoral-neck-s-fracture-in-fahr-s-syndrome-case-report
#15
Marcello Sallì, Antonio D'Arienzo, Mariella Bonanno, Salvatore Morello, Antonino Sanfilippo, Giulia Letizia Mauro, Michele D'Arienzo
Fahr's syndrome, also known as "Bilateral Striopallidodentate Calcinosis" (BSPDC) primitive, is a rare neurological disease characterized by the presence of idiopathic, bilateral, symmetrical and abnormal deposition of calcium in areas of the brain that control movements including the basal ganglia, dentate nuclei of the cerebellum, nuclei of thalamus and semi-oval center. We describe a case of a 76-year-old male patient underwent reduction and fixation of a subtrochanteric fracture with intramedullary nail...
September 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28228787/fix-and-replace-an-emerging-paradigm-for-treating-acetabular-fractures
#16
Colin G Murphy, Andrew D Carrothers
Although technically challenging even for the experienced surgeon, simultaneous open reduction and internal fixation (ORIF) of acetabular fracture and total hip replacement (THR) have some potential advantages over the more traditional treatment options in specific patient subgroups; theoretically allowing immediate weight bearing and faster rehabilitation, reducing the cost of inpatient stay, and reducing the risks of early and late local complications associated with standard treatment for this type of injury...
September 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28228612/biomechanical-evaluation-of-three-ventral-fixation-methods-for-canine-atlantoaxial-instability-a-cadaveric-study
#17
Fumitaka Takahashi, Takaharu Hakozaki, Nobuo Kanno, Yasuji Harada, Shinya Yamaguchi, Yasushi Hara
Vol. 78, No. 12 (2016), The "received date" year in the manuscript was printed incorrectly. Error: Received 25 March 2015 ↓ Correction: Received 25 March 2016 The Journal of Veterinary Medical Science Editorial Office would like to offer our sincere apologies for this mistake.
2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28228585/fixation-target-representation-in-prefrontal-cortex-during-the-anti-saccade-task
#18
Xin Zhou, Christos Constantinidis
Neurons that discharge strongly during the time period of fixation of a visual target and cease to discharge prior to saccade initiation have been described in the brain stem, superior colliculus, and cortical areas. In subcortical structures, fixation neurons play a reciprocal role with saccadic neurons during the generation of eye movements. Their role in the dorsolateral prefrontal cortex is less obvious and it is not known if they are activated by fixation, inhibit saccade generation, or play a role in more complex functions such as the inhibition of inappropriate responses...
February 22, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28228581/spaceflight-induced-synaptic-modifications-within-hair-cells-of-the-mammalian-utricle
#19
David R Sultemeier, Kristel R Choy, Felix E Schweizer, Larry F Hoffman
Exposure to the microgravity conditions of spaceflight alleviates the load normally imposed by the Earth's gravitational field upon the inner ear utricular epithelia. Previous ultrastructural investigations showed that spaceflight induced an increase in synapse density within hair cells of the rat utricle. However, the utricle exhibits broad physiologic heterogeneity across different epithelial regions, and it is unknown whether capabilities for synaptic plasticity generalize to hair cells across its topography...
February 22, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28228542/accelerated-simulation-of-evolutionary-trajectories-in-origin-fixation-models
#20
Ashley I Teufel, Claus O Wilke
We present an accelerated algorithm to forward-simulate origin-fixation models. Our algorithm requires, on average, only about two fitness evaluations per fixed mutation, whereas traditional algorithms require, per one fixed mutation, a number of fitness evaluations of the order of the effective population size, Ne Our accelerated algorithm yields the exact same steady state as the original algorithm but produces a different order of fixed mutations. By comparing several relevant evolutionary metrics, such as the distribution of fixed selection coefficients and the probability of reversion, we find that the two algorithms behave equivalently in many respects...
February 2017: Journal of the Royal Society, Interface
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