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https://www.readbyqxmd.com/read/29026666/bedside-twist-drill-aspiration-of-cerebral-abscess-less-than-2-5-cm-in-size-a-case-series-and-discussion
#1
Tyler Carson, Dan Miulli
BACKGROUND: Intracranial abscess remains a potentially deadly condition despite development of newer antibiotics and improved surgical methods. Many studies have evaluated the surgical indications for abscess drainage, and it has been generally accepted that intracranial abscesses greater than 2.5 cm may best be treated with surgical intervention followed by antibiotic therapy. More recently, studies have shown good results with stereotactic aspiration of abscesses to 1 cm in size. Furthermore, a recent case series in 2014 of 103 cases of bedside twist drill aspiration of cerebral abscess >2...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29025010/sperm-function-protein-phosphorylation-and-metabolism-differ-in-mice-lacking-successive-sperm-specific-glycolytic-enzymes
#2
Zaohua Huang, Polina V Danshina, Kathleen Mohr, Weidong Qu, Summer G Goodson, Thomas M O'Connell, Deborah A O'Brien
Glyceraldehyde 3-phosphate dehydrogenase-S (GAPDHS) and phosphoglycerate kinase 2 (PGK2), two isozymes restricted to the male germline, catalyze successive steps in the glycolytic pathway in mammalian sperm. Although gene targeting of each isozyme demonstrated that glycolysis is required for normal sperm motility and male fertility, the phenotype of mice lacking GAPDHS is more severe than that of mice lacking PGK2. This study examined sperm function, signaling pathways and metabolism to investigate factors that contribute to the phenotypic differences between these knockout models...
August 28, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29024883/emerging-organic-pollutants-in-the-vadose-zone-of-a-soil-aquifer-treatment-system-pore-water-extraction-using-positive-displacement
#3
Alexander Sopilniak, Roy Elkayam, Anna Voloshenko Rossin, Ovadia Lev
Trace organic compounds in effluents, water streams and aquifers are amply reported. However, the mobile pool of Emerging Organic Contaminants (EOCs) in the deep parts of the vadose zone is hard to estimate, due to difficulties in extraction of sufficient quantity of pore water. Here, we present a new methodology for depth profiling of EOCs in pore water by Positive Displacement Extraction (PDE): Pore water extraction from unsaturated soil samples is carried out by withdrawal of soil cores by direct-push drilling and infiltrating the core by organics free water...
October 3, 2017: Chemosphere
https://www.readbyqxmd.com/read/29023328/strength-and-conditioning-habits-of-competitive-distance-runners
#4
Richard C Blagrove, Nicola Brown, Glyn Howatson, Philip R Hayes
Blagrove, RC, Brown, N, Howatson, G, and Hayes, PR. Strength and conditioning habits of competitive distance runners. J Strength Cond Res XX(X): 000-000, 2017-Targeted strength and conditioning (S&C) programs can potentially improve performance and reduce injury risk factors in competitive runners. However, S&C practices of distance runners are unknown. This study aimed to explore S&C practices of competitive middle- and long-distance runners and examined whether reported frequency of injuries was influenced by training behaviors...
October 10, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29021947/health-symptoms-in-residents-living-near-shale-gas-activity-a-retrospective-record-review-from-the-environmental-health-project
#5
Beth Weinberger, Lydia H Greiner, Leslie Walleigh, David Brown
Increasing evidence demonstrates an association between health symptoms and exposure to unconventional natural gas development (UNGD). The purpose of this study is to describe the health of adults in communities with intense UNGD who presented for evaluation of symptoms. Records of 135 structured health assessments conducted between February 2012 and October 2015 were reviewed retrospectively. Publicly available data were used to determine proximity to gas wells. Analysis was restricted to records of adults who lived within 1 km of a well in Pennsylvania and denied employment in the gas industry (n = 51)...
December 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/29018773/activity-of-bacteriophages-in-removing-biofilms-of-pseudomonas-aeruginosa-isolates-from-chronic-rhinosinusitis-patients
#6
Stephanie A Fong, Amanda Drilling, Sandra Morales, Marjolein E Cornet, Bradford A Woodworth, Wytske J Fokkens, Alkis J Psaltis, Sarah Vreugde, Peter-John Wormald
Introduction:Pseudomonas aeruginosa infections are prevalent amongst chronic rhinosinusitis (CRS) sufferers. Many P. aeruginosa strains form biofilms, leading to treatment failure. Lytic bacteriophages (phages) are viruses that infect, replicate within, and lyse bacteria, causing bacterial death. Aim: To assess the activity of a phage cocktail in eradicating biofilms of ex vivo P.aeruginosa isolates from CRS patients. Methods: P. aeruginosa isolates from CRS patients with and without cystic fibrosis (CF) across three continents were multi-locus sequence typed and tested for antibiotic resistance...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29016192/added-value-of-preoperative-computed-tomography-for-determining-cartilage-degeneration-in-patients-with-osteochondral-lesions-of-the-talar-dome
#7
Tomoyuki Nakasa, Yasunari Ikuta, Masahiro Yoshikawa, Mikiya Sawa, Yusuke Tsuyuguchi, Nobuo Adachi
BACKGROUND: Osteochondral lesions of the talar dome (OLTs) involve the articular cartilage and subchondral bone. The subchondral bone plate (SBP) plays a crucial role in cartilage metabolism, and computed tomography (CT) can provide more precise information on subchondral bone. CT image prediction of the histological findings on OLT will be useful to determine the most appropriate therapeutic strategy. PURPOSE: To evaluate the unique features of the CT findings that relate to the condition of the articular cartilage in OLT...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28992601/tooth-damage-in-captive-orcas-orcinus-orca
#8
John Jett, Ingrid N Visser, Jeffrey Ventre, Jordan Waltz, Carolina Loch
OBJECTIVES: Tooth damage as a result of oral stereotypies is evident in captive orca, yet little research on the topic exists. This study examines the associations between dental pathology, sex, facility, duration of captivity and other factors in captive orca. DESIGN: We evaluated mandibular and maxillary teeth from dental images of 29 captive orca owned by a US-based theme park. Each tooth was scored for coronal wear, wear at or below gum line and bore holes. Fractured and missing teeth were also noted...
September 29, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28990459/multi-objective-performance-investigation-of-orthopaedic-bone-drilling-using-taguchi-membership-function
#9
Gurmeet Singh, Vivek Jain, Dheeraj Gupta
Orthopaedic bone drilling attacks the surrounded bone cells and tissues in terms of thermal and mechanical in such a way that these cells can get damaged permanently. This damage to the surrounding of drill point upsurges the rehabilitation time of injury and in some cases leads to the failure of the bone screw joint. This study is based on the optimization of multiple response characteristics to minimize the damage during the bone drilling. All real-life problems, including bone drilling, require the multiple response optimization for getting a combined optimization result for all countable response characteristics...
October 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28989829/bony-hyperostosis-recurrence-after-complete-resection-of-sphenoorbital-meningioma
#10
Gmaan Alzhrani, William Couldwell
Bony hyperostosis is commonly associated with meningioma growth and is considered one of the characteristic signs on imaging; however, recurrence of meningiomas in the sphenoorbital area, including associated hyperostosis, is typically precluded by gross total resection of the lesion. This 63-year-old man presented with progressive double vision and proptosis in the right eye. He underwent frontotemporal craniotomy and partial removal after magnetic resonance imaging demonstrated a right sphenoorbital meningioma extending to the orbit and middle fossa...
August 4, 2017: Curēus
https://www.readbyqxmd.com/read/28989202/interpopulation-variability-and-adaptive-potential-for-reduced-glyphosate-sensitivity-in-alopecurus-myosuroides
#11
L R Davies, P Neve
Glyphosate use in the United Kingdom has more than doubled in the last 20 years. Much of this increase is driven by efforts to control herbicide resistant weeds, particularly Alopecurus myosuroides, prior to crop drilling. There is precedent for evolution of glyphosate resistance in similar situations, raising concerns over the sustainability of glyphosate use in the UK. We used dose-response experiments to examine variation in glyphosate sensitivity amongst 40 field-collected A. myosuroides populations. No populations were resistant to glyphosate, but ED 90 values ranged between 354 and 610 g a...
October 2017: Weed Research
https://www.readbyqxmd.com/read/28988083/high-resolution-sedimentary-records-of-some-organochlorine-pesticides-in-yamzho-yumco-lake-of-the-tibetan-plateau-concentration-and-composition
#12
Yong Sun, Guo-Li Yuan, Jun Li, Jianhui Tang, Gen-Hou Wang
Sediment cores from lakes have been used to reconstruct the historic deposition of persistent organic pollutants (POPs), especially in remote alpine areas. To reconstruct the deposition history of organochlorine pesticides (OCPs) in the Tibetan Plateau (TP), two sediment cores from Yamzho Yumco Lake were drilled and dated with high-resolution, from which 23 OCPs were analyzed in greater detail. Regarding several legacy compounds, concentration peaks in the cores were observed in the 1970s, corresponding to the heavy usage of these compounds around the world...
October 4, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28986774/the-history-evolution-and-basic-science-of-osteotomy-techniques
#13
REVIEW
John Dabis, Oliver Templeton-Ward, Alice E Lacey, Badri Narayan, Alex Trompeter
Osteotomy techniques date back to Hippocrates circa 415 BC (Jones Hippocrates collected works I, Harvard University Press, Cambridge, 2006; Brorson in Clin Orthop Relat Res 467(7):1907-1914, 2009). There is debate about the best way to divide the bone surgically and which technique yields the best bone regenerate in lengthening; ensuring predictable new bone formation and healing of the osteotomy are the primary goals. We review the history and techniques of the osteotomy and consider the evidence for optimum bone formation...
October 6, 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/28986617/risk-of-fracture-of-the-acromion-depends-on-size-and-orientation-of-acromial-bone-tunnels-when-performing-acromioclavicular-reconstruction
#14
Felix Dyrna, Celso Cruz Timm de Oliveira, Michael Nowak, Andreas Voss, Elifho Obopilwe, Sepp Braun, Leo Pauzenberger, Andreas B Imhoff, Augustus D Mazzocca, Knut Beitzel
PURPOSE: Current techniques for anatomic repair of the dislocated acromioclavicular (AC) joint aim on reconstruction of the AC ligaments and utilize tunnels drilled through the acromion . This improves the stability of the reconstruction but might also increase the risk of fractures at the acromion. The purpose of this study was to evaluate the fracture risk for the acromion after transacromial tunnel placement for anatomic AC joint stabilization procedure. It was hypothesized that the risk of fracture of the acromion is correlated to size and orientation of bone tunnels commonly used for anatomic AC joint reconstruction...
October 6, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28986227/anterior-cervical-discectomy-with-instrumented-allograft-fusion-lordosis-restoration-and-comparison-of-functional-outcomes-among-patients-of-different-age-groups
#15
Dario Muzevic, Bruno Splavski, Frederick A Boop, Kenan I Arnautovic
OBJECTIVE: To investigate clinical parameters of anterior cervical discectomy and fusion (ACDF) treatment and outcomes using osseous allograft in different age groups, study postoperative results of restoring of lordosis, and evaluate the utility of bone allografts for ACDF, including graft subsidence. METHODS: We reviewed data from 154 patients having clinical symptoms and radiological signs of disc herniation and/or cervical spondylosis. Decompression was achieved through discectomy, osteophyte ablation, endplate drilling, and foraminotomy...
October 3, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28986086/functional-physical-training-improves-women-s-military-occupational-performance
#16
Bradley C Nindl, Shawn R Eagle, Peter N Frykman, Christopher Palmer, Eric Lammi, Katy Reynolds, Katelyn Allison, Everett Harman
The U.S. Armed Forces have recently approved full integration of women into combat roles. Physical fitness demands for executing Military Occupational Specialties (MOS) are substantial; thus lifting and load carriage capability improvements are desirable. OBJECTIVES: To determine if a specially-designed physical conditioning program could lessen the gap between the performance of male and female Soldiers in lifting and load carriage and thereby enable women to meet the requirements of most, if not all, Army MOSs...
July 14, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28985979/feasibility-of-a-new-pulley-repair-a%C3%A2-cadaver-study
#17
Isabelle Schöffl, Julia Meisel, Christoph Lutter, Volker Schöffl
PURPOSE: In this study, the feasibility of a new pulley reconstruction in which the tendon graft is pulled through a tunnel in the proximal phalanx, was evaluated using a cadaver model, with particular attention paid to the weakening of the bone structure by the drill hole. METHODS: Nine fingers from 6 cadaver hands with intact pulley systems were compared with 9 fingers from 6 cadaver hands with missing A2 to A4 pulleys but that included a repair using the new surgical technique...
October 4, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28985669/establishment-of-next-generation-neurosurgery-research-and-training-laboratory-with-integrated-human-performance-monitoring
#18
Antonio Bernardo
Quality of neurosurgical care and patient outcomes are inextricably linked to surgical and technical proficiency and a thorough working knowledge of microsurgical anatomy. Neurosurgical laboratory-based cadaveric training is essential for the development and refinement of technical skills before their use on a living patient. Recent biotechnological advances including 3-dimensional (3D) microscopy and endoscopy, 3D printing, virtual reality, surgical simulation, surgical robotics, and advanced neuroimaging have proved to reduce the learning curve, improve conceptual understanding of complex anatomy, and enhance visuospatial skills in neurosurgical training...
October 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28984664/effect-of-2-different-drilling-speeds-on-the-osseointegration-of-implants-placed-with-flapless-guided-surgery-a-study-in-rabbits
#19
Ricardo Andres Landazuri-Del Barrio, Wagner Nunes de Paula, Rubens Spin-Neto, João Antônio Chaves de Souza, Guilherme José Pimentel Lopes de Oliveira, Elcio Marcantonio-Junior
OBJECTIVE: The aim of this study was to evaluate the influence of the drilling speed on bone healing and the osseointegration of implants placed with a guided flapless surgical technique in rabbit tibias. METHODS: For the evaluation of bone healing, a total of 30 perforations (defects) were made in both tibias of 15 rabbits using 2 different drilling speeds (1500 rpm-control group; 50 rpm-test group). The regeneration of bone tissue in the surgical sites was evaluated at 0, 7, and 14 days...
October 3, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28982588/low-level-mechanical-vibration-improves-bone-microstructure-mechanical-properties-and-porous-titanium-implant-osseointegration-by-promoting-a-major-skeletal-anabolic-response-in-type-1-diabetic-rabbits
#20
Da Jing, Zedong Yan, Jing Cai, Shichao Tong, Xiaokang Li, Zheng Guo, Erping Luo
Type 1 diabetes mellitus (T1DM) is associated with reduced bone mass, increased fracture risk, and impaired bone defect regeneration potential. These skeletal complications are becoming important clinical challenges due to the rapidly increasing T1DM population, which necessitates developing effective treatment for T1DM-associated osteopenia/osteoporosis and bone trauma. This study aims to investigate the effects of whole-body vibration (WBV), an easy and non-invasive biophysical method, on bone microstructure, mechanical properties and porous titanium (pTi) osseointegration in alloxan-diabetic rabbits...
October 2, 2017: Bone
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