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https://www.readbyqxmd.com/read/28934673/an-analysis-of-chemicals-and-other-constituents-found-in-produced-water-from-hydraulically-fractured-wells-in-california-and-the-challenges-for-wastewater-management
#1
Emily A Chittick, Tanja Srebotnjak
As high-volume hydraulic fracturing (HF) has grown substantially in the United States over the past decade, so has the volume of produced water (PW), i.e., briny water brought to the surface as a byproduct of oil and gas production. According to a recent study (Groundwater Protection Council, 2015), more than 21 billion barrels of PW were generated in 2012. In addition to being high in TDS, PW may contain hydrocarbons, PAH, alkylphenols, naturally occurring radioactive material (NORM), metals, and other organic and inorganic substances...
September 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28933334/-damage-control-surgery-in-polytrauma-patients-with-pelvic-fractures-is-it-possible-to-use-internal-fixation
#2
L Havlůj, V Džupa, R Gürlich
Current polytrauma management is multidisciplinary, with Damage Control Surgery (DCS), Damage Control Orthopaedics (DCO) and Damage Control Resuscitation (DCR) being applied in the first few hours after injury. The most severe group of polytrauma patients are those with circulatory instability and massive blood loss as a consequence of unstable pelvic fractures. In treating these patients, of crucial importance is the speed and quality of stabilisation of pelvic fracture fragments. The authors present two case reports of polytrauma patients with unstable pelvic fractures, in whom open reduction and internal fixation was performed on the anterior fracture segment through extended laparotomy in order to stop bleeding into the abdominopelvic cavity as part of the DCS approach...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28933326/acetabular-fractures-in-an-advanced-age-current-knowledge-and-treatment-options
#3
S Märdian, D Rau, P Hinz, S Wittenberg, M Giesecke, P Schwabe
The demographic change in industrial countries leads to an increasing population that sustains an acetabular fracture in an advanced age. Some authors predicted elderly individuals to be the most rapidly growing subgroup of patients currently sustaining acetabular fractures. Gold standard of treatment of acetabular fractures remains the open reduction and internal fixation. Relevant factors impeding surgical treatment include the significantly decreased bone stock and the incapability of the patients to partially weight bear following surgery...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28932703/imaging-in-traumatic-mandibular-fractures
#4
REVIEW
Adil Naeem, Hugo Gemal, Duncan Reed
A fracture of the mandible is a common trauma presentation amongst young males and represents one of the most frequently encountered fractured bones within the viscerocranium. Historically, assault was the dominant contributing factor but now due to the increased number of vehicles used per capita, motor vehicle accidents are the primary cause. Mandibular fractures can be classified anatomically, by dentition, by muscle group and by severity. The fracture may also be closed, open, comminuted, displaced or pathological...
August 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28932488/medial-elbow-pain
#5
REVIEW
Raul Barco, Samuel A Antuña
Medial elbow pain is uncommon when compared with lateral elbow pain.Medial epicondylitis is an uncommon diagnosis and can be confused with other sources of pain.Overhead throwers and workers lifting heavy objects are at increased risk of medial elbow pain.Differential diagnosis includes ulnar nerve disorders, cervical radiculopathy, injured ulnar collateral ligament, altered distal triceps anatomy or joint disorders.Children with medial elbow pain have to be assessed for 'Little League elbow' and fractures of the medial epicondyle following a traumatic event...
August 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28932487/intra-articular-fractures-of-the-distal-tibia-current-concepts-of-management
#6
REVIEW
Alexandre Sitnik, Aleksander Beletsky, Steven Schelkun
Results of the treatment of intra-articular fractures of the distal tibia have improved significantly during the last two decades.Recognition of the role of soft tissues has led to the development of a staged treatment strategy. At the first stage, joint-bridging external fixation and fibular fixation are performed. This leads to partial reduction of the distal tibial fracture and allows time for the healing of soft tissues and detailed surgical planning.Definitive open reduction and internal fixation of the tibial fracture is performed at a second stage, when the condition of the soft tissues is safe...
August 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28932486/-on-track-and-off-track-shoulder-lesions
#7
REVIEW
E Itoi
Shoulder stability depends on the position of the arm as well as activities of the muscles around the shoulder. The capsulo-ligamentous structures are the main stabilisers with the arm at the end-range of movement, whereas negative intra-articular pressure and concavity-compression effect are the main stabilisers with the arm in the mid-range of movement.There are two types of glenoid bone loss: fragment type and erosion type. A bone loss of the humeral head, known as a Hill-Sachs lesion (HSL), is a compression fracture of the humeral head caused by the anterior rim of the glenoid when the humeral head is dislocated anteriorly in front of the glenoid...
August 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28932304/two-stage-minimally-invasive-method-with-locking-plate-application-on-distal-tibia-fractures-our-experience
#8
Ilir Hasani, Igor Kaftandziev, Slavco Stojmenski, Simon Trpeski, Hristijan Kostov, Ljupcho Nikolov, Oliver Arsovski, Saliamet Emini
INTRODUCTION: In the past distal tibia fractures, including intraarticular fractures, frequently led to poor functional outcomes. The Ruedi-Allgower four steps open method, and later the Patterson and Sirkin recommendations for delayed operative treatment has made a drastic advancement in the treatment of these fractures. The two-stage minimally-invasive protocol using locking plate fixation proved a historical turning point, improving functional results to the highest levels compared to all other methods...
August 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28932286/pilot-report-non-operative-treatment-of-mayo-type-ii-olecranon-fractures-in-any-age-adult-patient
#9
Matthew D Putnam, Christy M Christophersen, Julie E Adams
BACKGROUND: We report on the non-operative treatment of Mayo Type II olecranon fractures. METHODS: Fourteen isolated Mayo Type II olecranon fractures were treated non-operatively, followed to discharge, and retrospectively reviewed. Treatment was splinting in extension followed by protected active motion beginning 3 weeks to 4 weeks post-injury. Mayo Elbow Performance Index (MEPI) and Shortened Disabilities of the Arm, Shoulder and Hand (QuickDASH) scores were available in 86% and 64% of cases, respectively...
October 2017: Shoulder & Elbow
https://www.readbyqxmd.com/read/28931843/new-insights-into-earthquake-precursors-from-insar
#10
Marco Moro, Michele Saroli, Salvatore Stramondo, Christian Bignami, Matteo Albano, Emanuela Falcucci, Stefano Gori, Carlo Doglioni, Marco Polcari, Marco Tallini, Luca Macerola, Fabrizio Novali, Mario Costantini, Fabio Malvarosa, Urs Wegmüller
We measured ground displacements before and after the 2009 L'Aquila earthquake using multi-temporal InSAR techniques to identify seismic precursor signals. We estimated the ground deformation and its temporal evolution by exploiting a large dataset of SAR imagery that spans seventy-two months before and sixteen months after the mainshock. These satellite data show that up to 15 mm of subsidence occurred beginning three years before the mainshock. This deformation occurred within two Quaternary basins that are located close to the epicentral area and are filled with sediments hosting multi-layer aquifers...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931325/outcomes-of-talus-fractures-associated-with-high-energy-combat-trauma
#11
Travis Junge, Jaime Bellamy, Thomas Dowd, Patrick Osborn
BACKGROUND: Talus fractures are infrequent injuries that are often associated with poor clinical outcomes. Literature reviewing talus fractures is limited to a civilian population, with few studies characterizing these injuries sustained in active duty personnel. The aim of this study was to characterize talus fractures sustained in combat trauma by reporting their surgical outcomes. METHODS: The Department of Defense Trauma Registry (DoDTR) was queried to identify US service members who sustained talus fractures in battle conditions between 2001 and 2014...
September 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28930926/fractures-of-the-nasal-bones-is-external-splinting-really-warranted
#12
Ourania Schoinohoriti, Dimosthenis Igoumenakis, George Rallis
BACKGROUND: It has been advocated that reduction of nasal bone fractures should be followed by internal packing and/or external splinting. Despite the ample literature concerning the advantages and limitations of various splint types, the necessity and effectiveness of external splinting has not been well documented. OBJECTIVE: To present the authors' experience and review the literature on treatment of nasal bone fractures, focusing on the indications and effectiveness of external splinting following closed reduction...
September 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28930858/a-retrospective-study-comparing-percutaneous-and-open-pedicle-screw-fixation-for-thoracolumbar-fractures-with-spinal-injuries
#13
Bowen Wang, Yong Fan, Jingjing Dong, Hu Wang, Faqi Wang, Zhichen Liu, Haoyuan Liu, Yafei Feng, Fengrong Chen, Zheyuan Huang, Ruisong Chen, Wei Lei, Zixiang Wu
BACKGROUND: The purpose of this study was to evaluate the effectiveness between percutaneous and open pedicle screw fixation for treating thoracolumbar fractures with spinal injuries. METHODS: A total of 105 patients with thoracolumbar fractures and spinal injuries were divided into a percutaneous pedicle screw fixation (PPSF) group with 56 patients, who underwent percutaneous pedicle screw fixation, and an open pedicle screw fixation (OPSF) group with 49 patients, who underwent open pedicle screw fixation in accordance with the treatment project...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28929365/management-of-comminuted-fractures-of-the-distal-humerus-clinical-outcome-after-primary-external-fixation-versus-immediate-fixation-with-locking-plates
#14
Clemens Kösters, Simon Lenschow, Esther Schulte-Zurhausen, Steffen Roßlenbroich, Michael J Raschke, Benedikt Schliemann
OBJECTIVES: The surgical treatment of comminuted fractures of the distal humerus remains a challenging problem. The aim of the present study was to compare the clinical outcomes of primary external fixation with second-staged open reduction and internal fixation (ORIF) and initial definitive internal fixation in surgically treated patients with comminuted distal humerus fractures. DESIGN: Retrospective comparative study. SETTING: Level one trauma center...
September 19, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28929117/histological-evidence-of-the-osseointegration-of-fractured-direct-metal-laser-sintering-implants-retrieved-after-5-years-of-function
#15
Francesco Mangano, Carlo Mangano, Adriano Piattelli, Giovanna Iezzi
BACKGROUND: Direct metal laser sintering (DMLS) is an additive manufacturing technique that allows the fabrication of dental implants layer by layer through the laser fusion of titanium microparticles. The surface of DMLS implants is characterized by a high open porosity with interconnected pores of different sizes; therefore, it has the potential to enhance and accelerate bone healing. To date, however, there are no histologic/histomorphometric studies in the literature evaluating the interface between bone and DMLS implants in the long-term...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28928953/treatment-of-femoral-shaft-fractures-with-monoaxial-external-fixation-in-polytrauma-patients
#16
Gianluca Testa, Domenico Aloj, Alessandro Ghirri, Eraclite Petruccelli, Vito Pavone, Alessandro Massé
Background: Femoral shaft fractures, typical in younger people, are often associated with polytrauma followed by traumatic shock. In these situations, despite intramedullary nailing being the treatment of choice, external fixation could be used as the definitive treatment. The aim of this study is to report evidence regarding definitive treatment of femoral shaft fractures with monoaxial external fixation. Methods: Between January 2006 and December 2015, 83 patients with 87 fractures were treated at the Department of Orthopaedics and Traumatology CTO of Turin, with a monoaxial external fixation device...
2017: F1000Research
https://www.readbyqxmd.com/read/28928010/three-dimensional-strut-plate-for-the-treatment-of-mandibular-fractures-a-systematic-review
#17
REVIEW
J C S de Oliveira, L B Moura, J D S de Menezes, M A C Gabrielli, V A Pereira Filho, E Hochuli-Vieira
The treatment of mandibular fractures by open reduction and internal fixation is very variable. Thus, there are many controversies about the best fixation system in terms of stability, functional recovery, and postoperative complications. This systematic review sought scientific evidence regarding the best indication for the use of three-dimensional (3D) plates in the treatment of mandibular fractures. A systematic search of the PubMed/MEDLINE, Elsevier/Scopus, and Cochrane Library databases was conducted to include articles published up until November 2016...
September 16, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28924381/osthole-promotes-bone-fracture-healing-through-activation-of-bmp-signaling-in-chondrocytes
#18
Pinger Wang, Jun Ying, Cheng Luo, Xing Jin, Shanxing Zhang, Taotao Xu, Lei Zhang, Meng Mi, Di Chen, Peijian Tong, Hongting Jin
Osthole is a bioactive coumarin derivative and has been reported to be able to enhance bone formation and improve fracture healing. However, the molecular mechanism of Osthole in bone fracture healing has not been fully defined. In this study we determined if Osthole enhances bone fracture healing through activation of BMP2 signaling in mice. We performed unilateral open transverse tibial fracture procedure in 10-week-old C57BL/6 mice which were treated with or without Osthole. Our previous studies demonstrated that chondrocyte BMP signaling is required for bone fracture healing, in this study we also performed tibial fracture procedure in Cre-negative and Col2-Cre;Bmp2(flox/flox) conditional knockout (KO) mice (Bmp2(Col2Cre) ) to determine if Osthole enhances fracture healing in a BMP2-dependent manner...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28921632/elevated-solute-transport-at-sites-of-diffuse-matrix-damage-in-cortical-bone-implications-on-bone-repair
#19
Bin Wang, Xuanhao Sun, Ozan Akkus, Liyun Wang
Diffuse matrix damage in rat cortical bone has been observed to self-repair efficiently in two weeks without activating bone remodeling, and unlike the case with linear cracks, the local osteocytes at the sites of diffuse damage remain healthy. However, the reason(s) for such high efficiency of matrix repair remains unclear. We hypothesized that transport of minerals and other compounds essential for damage repair is enhanced at the damaged sites and further increased by the application of tensile loading. To test our hypothesis, diffuse damage was introduced in notched bovine wafers under cyclic tensile loading and unloading...
September 16, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28921041/stabilization-of-scaphoid-type-b2-fractures-with-one-or-two-headless-compression-screws
#20
S Quadlbauer, T Beer, Ch Pezzei, J Jurkowitsch, A Tichy, T Hausner, M Leixnering
INTRODUCTION: Fractures of the scaphoid account for the most commonly injured carpal bone. Minimally displaced fractures of the waist will heal in 85-90% when using a below elbow cast. However, fractures with displacement have a higher risk for nonunion. Therefore, open reduction and fixation with headless compression screws (HCS) have become the preferred method of treatment. The aim of this study was to compare the radiological and clinical outcome of unstable scaphoid B2 type fractures, stabilized using one or two headless compression screws...
September 18, 2017: Archives of Orthopaedic and Trauma Surgery
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