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https://www.readbyqxmd.com/read/29222730/morphology-and-morphometry-of-lacrimal-drainage-system-in-relation-to-bony-landmarks-in-caucasian-adults-a-cadaveric-study
#1
Mohammad Javed Ali, Martin Schicht, Friedrich Paulsen
PURPOSE: The objective of this study is to examine the morphometry of the lacrimal drainage system with reference to bony landmarks in the vicinity. METHODS: Twenty midsaggitalized heads obtained from sixteen preserved cadavers were studied. Measurements involved detailed morphometry of anterior and posterior lacrimal crests, bony lacrimal sac fossa, entrance and length of the bony nasolacrimal duct (NLD), attachment of Horner's muscle, and characteristics of the inferior meatal opening of the NLD...
December 8, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29222672/morphological-alterations-in-the-position-of-the-mandibular-foramen-in-dentate-and-edentate-mandibles
#2
Niki Matveeva, Lidija Popovska, Biljana Evrosimovska, Elizabeta Chadikovska, Julijana Nikolovska
The technique of inferior alveolar nerve (IAN) block must be based on precise anatomical knowledge regarding the correct position of the mandibular foramen (MF). The aim of the investigation reported here was to determine the anatomic and topographic localization of the MF according to mandibular ramus anatomic landmarks and to identify morphological alterations in the position of the MF and size and shape of the ramus in terms of the impact of tooth socket loss in the molar and premolar region. Seventy-three dry human adult mandibles were divided into two groups according to dental status...
December 8, 2017: Anatomical Science International
https://www.readbyqxmd.com/read/29222563/quantitative-analysis-and-classification-of-the-nasal-base-using-a-parametric-model
#3
Christian H Barnes, Heidi Chen, Jason J Chen, Erica Su, Wesley J Moy, Brian J F Wong
Importance: The nasal base view is often overlooked in rhinoplasty analysis and, unlike lateral and frontal views, lacks detailed quantitative analysis and descriptors. While shape-category analysis of the nasal base is well established, these descriptive methods remain subjective and do not facilitate quantitative analysis. Objective: To establish a simple and quantitative classification scheme using a multiple-parameter numerical model for analyzing and describing the shape of the nasal base...
December 7, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/29220425/a-leaflet-plication-clip-is-an-effective-surgical-template-for-mitral-valve-foldoplasty
#4
Isaac Wamala, Mossab Saeed, Sunil J Ghelani, Kimberlee Gauvreau, Peter E Hammer, Nikolay V Vasilyev, Pedro J Del Nido
OBJECTIVES: During mitral valve repair using the foldoplasty technique, correct judgement of the necessary dimensions and orientation of the leaflet fold is a critical but challenging step that can affect the chances of successful repair. In this study, we investigated whether a leaflet plication clip can be used to guide suture foldoplasty for posterior leaflet prolapse of the mitral valve. METHODS: Complete posterior leaflet prolapse was created in both in vivo and ex vivo pig hearts by severing the chordae supporting the middle scallop...
December 6, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29218483/asymmetrical-trunk-movement-during-walking-improved-to-normal-range-at-3%C3%A2-months-after-corrective-posterior-spinal-fusion-in-adolescent-idiopathic-scoliosis
#5
Daniel A C F Wong-Chung, Janneke J P Schimmel, Marinus de Kleuver, Noël L W Keijsers
PURPOSE: To investigate the effects of posterior spinal fusion (PSF) and curve type on upper body movements in Adolescent Idiopathic Scoliosis (AIS) patients during gait. METHODS: Twenty-four girls (12-18 years) with AIS underwent PSF. 3D-Gait-analyses were performed preoperatively, at 3 months and 1 year postoperatively. Mean position (0° represents symmetry) and range of motion (ROM) of the trunk (thorax-relative-to-pelvis) in all planes were assessed. Lower body kinematics and spatiotemporal parameters were also evaluated...
December 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29218482/a-novel-muscle-sparing-high-thoracotomy-for-upper-thoracic-spine-resection-and-reconstruction
#6
Derek T Bernstein, Wu Zhuge, Shanda H Blackmon, Rex A W Marco
PURPOSE: High thoracotomy allows access to the anterior cervicothoracic and upper thoracic vertebrae; however, traditional techniques transect shoulder girdle muscles, leading to postoperative shoulder dysfunction. Muscle-sparing techniques diminish this concern, but often sacrifice the quality of exposure. We describe a novel muscle-sparing, high thoracotomy approach for the treatment of ventral cervicothoracic and upper thoracic spine lesions. METHODS: A novel muscle-sparing, high thoracotomy approach is described, utilizing a midline posterior incision with lateral extension from the lateral decubitus position...
December 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29217989/bayesian-inference-of-metal-oxide-ultrathin-film-structure-based-on-crystal-truncation-rod-measurements
#7
Masato Anada, Yoshinori Nakanishi-Ohno, Masato Okada, Tsuyoshi Kimura, Yusuke Wakabayashi
Monte Carlo (MC)-based refinement software to analyze the atomic arrangements of perovskite oxide ultrathin films from the crystal truncation rod intensity is developed on the basis of Bayesian inference. The advantages of the MC approach are (i) it is applicable to multi-domain structures, (ii) it provides the posterior probability of structures through Bayes' theorem, which allows one to evaluate the uncertainty of estimated structural parameters, and (iii) one can involve any information provided by other experiments and theories...
December 1, 2017: Journal of Applied Crystallography
https://www.readbyqxmd.com/read/29217442/posterior-approach-for-revascularization-in-blunt-popliteal-vessel-injury
#8
Vladimir Makaloski, Arno Stellmes, Doerte Wyss, Salome Weiss, Daniel Becker, Thomas R Wyss, Juerg Schmidli
BACKGROUND: Popliteal vessel injuries are associated with traumatic knee injury often requiring emergency revascularization. Medial and posterior approaches to the popliteal space have been proposed. This study evaluates the outcome of patients treated for traumatic popliteal vessel injuries via a posterior approach. METHODS: Consecutive patients with traumatic vascular injuries in the popliteal segments II and III undergoing surgical repair via a posterior approach between October 2008 and December 2016 were analyzed...
December 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29216909/which-measuring-site-in-ankylosing-spondylitis-is-best-to-detect-bone-loss-and-what-predicts-the-decline-results-from-a-5-year-prospective-study
#9
Anna Deminger, Eva Klingberg, Mattias Lorentzon, Mats Geijer, Jan Göthlin, Martin Hedberg, Eva Rehnberg, Hans Carlsten, Lennart T Jacobsson, Helena Forsblad-d'Elia
BACKGROUND: Studies have shown increased prevalence of osteoporosis and increased risk for vertebral fractures in patients with ankylosing spondylitis (AS). Measurements of bone mineral density (BMD) in the lumbar spine anterior-posterior (AP) projection may be difficult to interpret due to the ligamentous calcifications, and the lateral projection might be a better measuring site. Our objectives were to investigate BMD changes after 5 years at different measuring sites in patients with AS and to evaluate disease-related variables and medications as predictors for BMD changes...
December 8, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29216719/prevalent-placement-error-of-deep-brain-stimulation-electrode-in-movement-disorders-technical-considerations
#10
M Kloc, Z Kosutzka, J Steno, P Valkovic
BACKGROUND: Deep brain stimulation is an effective and safe technique. Displacement of the electrode relative to the optimal stimulation site can lead to insufficient effect and sometimes to the need of operative electrode re-position. OBJECTIVE: This study was aimed to analyse targeting accuracy of deep brain stimulation electrode implantation to subthalamic nucleus (STN) and globus pallidus internus (Gpi). It detected possible causes of inaccuracy and prevalent shift to certain direction...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29216475/long-face-dentofacial-deformities-occlusion-and-facial-esthetic-surgical-outcomes
#11
Jeffrey C Posnick, Samuel Liu, Timothy J Tremont
PURPOSE: The purpose of this study was to document malocclusion and facial dysmorphology in a series of patients with long face (LF) and chronic obstructive nasal breathing before treatment and the outcomes after bimaxillary orthognathic, osseous genioplasty, and intranasal surgery. MATERIALS AND METHODS: A retrospective cohort study of patients with LF undergoing bimaxillary, chin, and intranasal (septoplasty and inferior turbinate reduction) surgery was implemented...
December 4, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29214919/effect-of-total-contact-orthosis-on-medial-longitudinal-arch-and-lower-extremities-in-flexible-flatfoot-subjects-during-walking
#12
Tulaya Prachgosin, Wipawan Leelasamran, Pruittikorn Smithmaitrie, Surapong Chatpun
BACKGROUND: Total-contact orthosis (TCO) is one kind of foot orthosis (FO) that is used to adjust biomechanics in flexible flatfoot. OBJECTIVE: To determine the effects of a TCO on the MLA moment, MLA deformation angle and lower limb biomechanics. STUDY DESIGN: Cross-sectional study. METHODS: Seven-flatfoot and thirteen-normal foot subjects were recruited by footprint and radiographs. The biomechanics of subjects with normal foot (NF), flatfoot with shoe only (FWOT) and flatfoot with TCO (FWT) were collected in a 3D motion analysis laboratory and force plates...
December 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/29212871/gastric-liposarcoma-resected-by-laparoscopic-total-gastrectomy-to-achieve-a-wide-surgical-margin
#13
Katsuhiro Tomofuji, Jota Watanabe, Naoki Ishida, Shinsuke Kajiwara
Gastric liposarcoma is an extremely rare tumour that usually affects the extremities and retroperitoneum. Preoperative diagnosis is difficult, and operative procedures are not well standardised. A 61-year-old woman presented with melaena, epigastric discomfort and palpitations. Upper endoscopy revealed a submucosal tumour at the posterior gastric fundus with an actively bleeding ulcer on the top. Our preoperative diagnosis was lipoma, and we performed laparoscopic intragastric surgery. However, the histopathological diagnosis was liposarcoma...
December 5, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29212680/high-prevalence-of-acetabular-retroversion-in-asymptomatic-adults-a-3d-ct-based-study
#14
G I Wassilew, M O Heller, V Janz, C Perka, M Müller, L Renner
AIMS: This study sought to establish the prevalence of the cross over sign (COS) and posterior wall sign (PWS) in relation to the anterior pelvic plane (APP) in an asymptomatic population through reliable and accurate 3D-CT based assessment. MATERIALS AND METHODS: Data from pelvic CT scans of 100 asymptomatic subjects (200 hips) undertaken for conditions unrelated to disorders of the hip were available for analysis in this study. A previously established 3D analysis method was applied to assess the prevalence of the COS and PWS in relation to the APP...
December 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/29212368/impact-of-variations-in-prostatic-apex-shape-on-apical-margin-positive-rate-after-radical-prostatectomy-robot-assisted-laparoscopic-radical-prostatectomy-versus-open-radical-prostatectomy
#15
Young Dong Yu, Minseung Lee, Sung Kyu Hong, Seok-Soo Byun, Sang Eun Lee, Sangchul Lee
AIM: To evaluate the effects of prostatic apex shape variations on positive apical margin rate (PAM) after radical prostatectomy (RP) by undertaking a comparative study of robot-assisted laparoscopic radical prostatectomy (RALP) versus open radical prostatectomy (ORP). METHODS: A total 3,324 cases of RP (1,004 ORP and, 2,320 RALP) from January 2004 to March 2017 were retrospectively reviewed. All patients underwent preoperative magnetic resonance imaging (MRI) and the cohorts were stratified into 4 categories according to prostatic apical shape at the mid-sagittal plane...
December 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29212061/ambient-ozone-pollution-and-daily-mortality-a-nationwide-study-in-272-chinese-cities
#16
Peng Yin, Renjie Chen, Lijun Wang, Xia Meng, Cong Liu, Yue Niu, Zhijing Lin, Yunning Liu, Jiangmei Liu, Jinlei Qi, Jinling You, Maigeng Zhou, Haidong Kan
BACKGROUND: Few large multicity studies have been conducted in developing countries to address the acute health effects of atmospheric ozone pollution. OBJECTIVE: We explored the associations between ozone and daily cause-specific mortality in China. METHODS: We performed a nationwide time-series analysis in 272 representative Chinese cities between 2013 and 2015. We used distributed lag models and over-dispersed generalized linear models to estimate the cumulative effects of ozone (lagged over 0-3 d) on mortality in each city, and we used hierarchical Bayesian models to combine the city-specific estimates...
November 21, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29210476/delayed-revascularization-of-islets-after-transplantation-by-il-6-blockade-in-pig-to-non-human-primate-islet-xenotransplantation-model
#17
Byoung-Hoon Min, Jun-Seop Shin, Jong-Min Kim, Seong-Jun Kang, Hyun-Je Kim, Il-Hee Yoon, Su-Kyoung Park, Ji-Won Choi, Min-Suk Lee, Chung-Gyu Park
BACKGROUND: Pancreatic islet transplantation is currently proven as a promising treatment for type 1 diabetes patients with labile glycemic control and severe hypoglycemia unawareness. Upon islet transplantation, revascularization is essential for proper functioning of the transplanted islets. As IL-6 is important for endothelial cell survival and systemic inflammation related to xenograft, the effect of IL-6 receptor antagonist, tocilizumab, on revascularization of the transplanted islets was examined in pig to non-human primate islet xenotransplantation model...
December 6, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/29209999/elaborative-feedback-engaging-reward-and-task-relevant-brain-regions-promotes-learning-in-pseudoword-reading-aloud
#18
Samantha R Mattheiss, Edward J Alexander, William W Graves
Although much is known about the cognitive and neural basis of establishing letter-sound mappings in learning word forms, relatively little is known about what makes for the most effective feedback during this process. We sought to determine the neural basis by which elaborative feedback (EF), which contains both reward-related and content-specific information, may be more helpful than feedback containing only one kind of information (simple positive feedback, PF) or the other (content feedback, CF) in learning orthography-phonology (spelling-sound) mappings for novel letter strings...
December 5, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/29209809/reduction-and-temporary-stabilization-of-tile-c-pelvic-ring-injuries-using-a-posteriorly-based-external-fixation-system
#19
Murphy P Martin, David Rojas, Cyril Mauffrey
Tile C pelvic ring injuries are challenging to manage even in the most experienced hands. The majority of such injuries can be managed using percutaneous reduction techniques, and the posterior ring can be stabilized using percutaneous transiliac-transsacral screw fixation. However, a subgroup of patients present with inadequate bony corridors, significant sacral zone 2 comminution or significant lateral/vertical displacement of the hemipelvis through a complete sacral fracture. Percutaneous strategies in such circumstances can be dangerous...
December 5, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29209250/mental-simulation-of-painful-situations-has-an-impact-on-posture-and-psychophysiological-parameters
#20
Thierry Lelard, Olivier Godefroy, Said Ahmaidi, Pierre Krystkowiak, Harold Mouras
Embodiment is made possible by the ability to imagine ourselves in a particular situation (mental simulation). Postural changes have been demonstrated in response to painful situations, but the effect of an implicit instruction has not been studied. The present study was designed to record differential responses according to whether or not subjects were instructed to imagine themselves in a painful or non-painful situation. Painful stimuli and instructions to mentally simulate the displayed situation were hypothesized to induce postural changes that could be demonstrated by changes in the center of pressure (COP) trajectory compared to viewing the same stimuli with no instructions...
2017: Frontiers in Psychology
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