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Ala Simonchyk, Isabelle Darcy
The current study investigated the potential facilitative or inhibiting effects of orthography on the lexical encoding of palatalized consonants in L2 Russian. We hypothesized that learners with stable knowledge of orthographic and metalinguistic representations of palatalized consonants would display more accurate lexical encoding of the plain/palatalized contrast. The participants of the study were 40 American learners of Russian. Ten Russian native speakers served as a control group. The materials of the study comprised 20 real words, familiar to the participants, with target coronal consonants alternating in word-final and intervocalic positions...
March 1, 2018: Language and Speech
Akio Minami, Yukinobu Kamiya, Yasuaki Tojo, Satoko Matsumoto Harmon, Kota Suda
BACKGROUND: The Sauvé-Kapandji (SK) procedure is one of several surgical options in the treatment of distal radioulnar disorders by osteoarthritis (OA) and rheumatoid arthritis (RA). While satisfactory postoperative clinical results were obtained in most cases, instability of the proximal ulnar stump and radioulnar convergence are the most common complications. Minami et al. have developed a modification of the SK procedure that maintains the transverse diameter of the distal radioulnar joint and stabilizes the proximal ulnar stump, using a half-slip of the extensor carpi ulnaris tendon...
March 15, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Brian P Hermanson, Grant C Burgdorf, John F Hatton, Darrin M Speegle, Karl F Woodmansey
INTRODUCTION: The visual search patterns of dentists and the areas that attract their attention when interpreting dental periapical radiographs are currently unknown. This research identifies areas and patterns of visual fixation when observing dental periapical radiographs. METHODS: In an observational study using eye tracking technology and a convenience sample of 44 observers, the interpretations of 4 dental periapical radiographs were recorded using Camtasia Software (TechSmith, Okemos, MI) with a gaze tracking "bubble" denoting where within the radiograph the observers' eyes gazed...
March 15, 2018: Journal of Endodontics
Salahaddin Zahedi, Maryam Mostafavi, Neda Lotfirikan
INTRODUCTION: The present study aimed to anatomically assess mandibular posterior teeth using cone-beam computed tomographic (CBCT) imaging for endodontic surgery. METHODS: A total of 170 CBCT scans were evaluated for anatomic variations of mandibular posterior teeth. All the scans were obtained using a Planmeca Promax CBCT unit (Planmeca, Helsinki, Finland) with exposure settings of 90 kVp, 12 mA, 12 seconds, and 0.3-mm resolution. All CBCT images were reconstructed by Romexis Viewer 3...
March 14, 2018: Journal of Endodontics
Zhejun Wang, Ya Shen, Markus Haapasalo
INTRODUCTION: Conventional endodontic treatment includes instrumentation of the canals in most cases to size #25/.06 or larger, which changes the original canal wall anatomy. In recent years, energy-driven equipment, such as photon-induced photoacoustic streaming (Fotona LLC, Dallas, TX) and a multisonic GentleWave system (Sonendo Inc, Laguna Hills, CA), have been introduced to facilitate cleaning of minimally instrumented canals or even uninstrumented canals. The purpose of this study was to examine root canal wall anatomy in premolar teeth cleaned by a noninstrumentation method after #10 K-file patency examination...
March 14, 2018: Journal of Endodontics
Mahsa Dadar, Vladimir S Fonov, D Louis Collins
INTRODUCTION: Linear registration to a standard space is one of the major steps in processing and analyzing magnetic resonance images (MRIs) of the brain. Here we present an overview of linear stereotaxic MRI registration and compare the performance of 5 publicly available and extensively used linear registration techniques in medical image analysis. METHODS: A set of 9693 T1-weighted MR images were obtained for testing from 4 datasets: ADNI, PREVENT-AD, PPMI, and HCP, two of which have multi-center and multi-scanner data and three of which have longitudinal data...
March 13, 2018: NeuroImage
Daniëlle Bp Eekers, Lieke In 't Ven, Erik Roelofs, Alida Postma, Claire Alapetite, Neil G Burnet, Valentin Calugaru, Inge Compter, Ida E M Coremans, Morton Høyer, Maarten Lambrecht, Petra Witt Nyström, Alejandra Méndez Romero, Frank Paulsen, Ana Perpar, Dirk de Ruysscher, Laurette Renard, Beate Timmermann, Pavel Vitek, Damien C Weber, Hiske L van der Weide, Gillian A Whitfield, Ruud Wiggenraad, Esther G C Troost
PURPOSE: To create a digital, online atlas for organs at risk (OAR) delineation in neuro-oncology based on high-quality computed tomography (CT) and magnetic resonance (MR) imaging. METHODS: CT and 3 Tesla (3T) MR images (slice thickness 1 mm with intravenous contrast agent) were obtained from the same patient and subsequently fused. In addition, a 7T MR without intravenous contrast agent was obtained from a healthy volunteer. Based on discussion between experienced radiation oncologists, the clinically relevant organs at risk (OARs) to be included in the atlas for neuro-oncology were determined, excluding typical head and neck OARs previously published...
March 13, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Kevin D Martin, Jeffrey Wake, Laura Dawson, J Preston Van Buren
Background: The prevalence of Achilles tendon (AT) pathology is common and can result in disability. Understanding normal AT properties can improve our ability to prevent AT injuries. We examined the cross-sectional area of the AT at multiple levels in an asymptomatic population of Army Rangers. Methods: This is a prospective cohort study composed of 41 voluntarily recruited United States Army Rangers deployed in a combat theater. All subjects were members of the Ranger Regiment participating in more than 20 h of intense bipedal non-sport weekly training with no history of AT pathology...
March 14, 2018: Military Medicine
Latifah Alazmi, Grace E Gadsby, Nicola R Heneghan, T David Punt
BACKGROUND: Left/right judgment tasks (LRJTs) are used in the management of chronic pain. This use is predicated on their ability to elicit the simulation of movements (i.e. motor imagery), including those where the execution of the same movements induces pain. While established for limb-based LRJTs, the ability of trunk-based LRJTs to elicit motor imagery of trunk movements has not been demonstrated. OBJECTIVE: To establish whether data from a trunk-based LRJT are indicative of motor imagery being elicited for the specific lateralised trunk postures presented...
March 7, 2018: Musculoskeletal Science & Practice
Yashwant Singh Tanwar, Yatinder Kharbanda, Atin Jaiswal, Vikas Birla, Ramsagar Pandit
INTRODUCTION: Coronal plane distal humeral injuries are relatively rare. Numerous classification systems have been proposed as the complexity of these fractures has been realized. We in the present series of ten patients describe the surgical technique of Open Reduction and Internal Fixation of Coronal plane fractures of the distal humerus with headless compression screws performed using the anterolateral approach. MATERIAL AND METHOD: It was a retrospective study, the data collected from March 2010 to 2015 was analysed and the final outcome was assessed using the DASH score...
2018: SICOT-J
S P Paul
Objective There remains confusion between Langer's lines and wrinkle lines with respect to the optimal orientation of elliptical excisions on the trunk. This study sought to determine the directions of wound closure that would result in least wound tension after skin lesion excisions. Materials and methods Some 1181 consecutive skin lesion excisions were investigated (age range 13-95 years, median 64 years) using a tensiometer to determine directions of least wound tension. These lines were mapped. Skin tension measurements were taken during the procedure and analysed...
March 15, 2018: Annals of the Royal College of Surgeons of England
W Su, Y Guo, R Erdélyi, Z J Ning, M D Ding, X Cheng, B L Tan
Coronal loops exist ubiquitously in the solar atmosphere. These loops puzzle astronomers over half a century. Solar magneto-seismology (SMS) provides a unique way to constrain the physical parameters of coronal loops. Here, we study the evolution of oscillations of a coronal loop observed by the Atmospheric Imaging Assembly (AIA). We measure geometric and physical parameters of the loop oscillations. In particular, we find that the mean period of the oscillations increased from 1048 to 1264 s during three oscillatory cycles...
March 14, 2018: Scientific Reports
Allen F Morey
No abstract text is available yet for this article.
May 2017: Journal of Urology
Fen Chen, Shulin Li, Dong Sun
Blood oxygen level-dependent magnetic resonance imaging (BOLD MRI) has recently been utilized as a noninvasive tool for evaluating renal oxygenation. Several methods have been proposed for analyzing BOLD images. Regional ROI selection is the earliest and most widely used method for BOLD analysis. In the last 20 years, many investigators have used this method to evaluate cortical and medullary oxygenation in patients with ischemic nephropathy, hypertensive nephropathy, diabetic nephropathy, chronic kidney disease (CKD), acute kidney injury and renal allograft rejection...
March 8, 2018: Kidney & Blood Pressure Research
Xinwei Shao, Jican Zeng, Yuchun Chen, Lixian Wu, Xinjia Wang
OBJECTIVE: To analyze the mechanism of the halo vest-assisted Z-shape elevating-pulling reduction technique for cervical unilateral locked facets, and confirm the safety of the spinal cord under the epidural pressure that occurs during the reduction process. METHODS: Eleven osteoligamentous whole coronal and cervical spine specimens were established as skull-neck-thorax models of cervical unilateral locked facets at the C5/6 level. The halo vest-assisted Z-shape elevating-pulling reduction technique was then applied to reduce the locked facets...
March 14, 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
Robert Noelken, Maximilian Moergel, Martin Kunkel, Wilfried Wagner
OBJECTIVES: As the 2-year results for immediately inserted and provisionalized implants have been reported, it remained an open issue, whether the initially high success rates and the esthetic outcome remain stable for longer observation periods. Therefore, this prospective study examines the 5-year hard and soft tissue changes at implants placed in the anterior maxilla. MATERIAL AND METHODS: Meanwhile, 37 microthreaded implants were placed in 21 patients into extraction sockets with and without facial bone deficiencies by a flapless approach...
March 2018: Clinical Oral Implants Research
Kai Zhou, Zongke Zhou, Xiaojun Shi, Bin Shen, Pengde Kang, Jing Yang, Fuxing Pei
BACKGROUND: Proper limb alignment and implant positioning are important for successful total knee arthroplasty (TKA). It remains unknown whether any differences exist in the restoration of limb alignment for valgus knees between fixed and individual femoral valgus correction angle (VCA) for distal femoral resection. METHODS: A total of 63 patients (66 knees) had fixed 4° VCA (fixed group), and 55 patients (59 knees) had individual VCA (individual group). We compared the VCA, mechanical femorotibial (MFT) angle, femoral component angle (α), and tibial component angle (β) between the two groups...
March 10, 2018: International Journal of Surgery
Marina Alexandra Gavin Clavero, María Victoria Simón Sanz, Andrea Mur Til, Úrsula María Jariod Ferrer
PURPOSE: We conducted a review of orbital fractures treated in our hospital over a period of 4 years. We reviewed several complications of such fractures, especially the relationship of postsurgical diplopia with different presurgical variables: age, gender, type of fracture, fracture area, coronal and sagittal diameter of fracture, fractured floor area, time to surgery, presence of muscle herniation, and presence of muscle entrapment. PATIENTS AND METHODS: Fractures involving the orbital floor remain a controversial issue in terms of surgical treatment and the time from trauma to surgery...
February 19, 2018: Journal of Oral and Maxillofacial Surgery
Stephan Bosch, Filipe Serra Bragança, Mihai Marin-Perianu, Raluca Marin-Perianu, Berend Jan van der Zwaag, John Voskamp, Willem Back, René van Weeren, Paul Havinga
In this paper, we describe and validate the EquiMoves system, which aims to support equine veterinarians in assessing lameness and gait performance in horses. The system works by capturing horse motion from up to eight synchronized wireless inertial measurement units. It can be used in various equine gait modes, and analyzes both upper-body and limb movements. The validation against an optical motion capture system is based on a Bland-Altman analysis that illustrates the agreement between the two systems. The sagittal kinematic results (protraction, retraction, and sagittal range of motion) show limits of agreement of ± 2...
March 13, 2018: Sensors
Christina L Ekegren, Ben Beck, Pamela M Simpson, Belinda J Gabbe
Background: Sports injuries that result in major trauma or death are associated with significant health care burden and societal costs. An understanding of changes in injury trends, and their drivers, is needed to implement policy aimed at risk reduction and injury prevention. To date, population-level reporting has not been available regarding trends in serious sport and recreation injuries anywhere in Australia over such an extended period, nor have any studies of this length captured comprehensive, long-term data on all sports-related major trauma internationally...
March 2018: Orthopaedic Journal of Sports Medicine
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