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Impingement test

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https://www.readbyqxmd.com/read/29153594/the-effectiveness-of-extracorporeal-shockwave-treatment-in-subacromial-impingement-syndrome-and-its-relation-with-acromion-morphology
#1
Esra Circi, Sibel Caglar Okur, Ozge Aksu, Erhan Mumcuoglu, Tolga Tuzuner, Nil Caglar
OBJECTIVE: The aim of this study was to evaluate the effectiveness of the extracorporeal shock wave therapy in the subacromial impingement syndrome and its relationship with the acromion morphology. METHODS: Thirty patients (24 women, 6 men) with subacromial impingement were evaluated. The average age of patients was 53.6 ± 9.8 years (range 39-80). Patients were divided into 3 groups according to the acromion morphology. ESWT 1500 at 0.12 am mL/mm(2) violence was applied once a week for 3 weeks...
November 16, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29142781/snapping-pes-anserinus-and-the-diagnostic-utility-of-dynamic-ultrasound
#2
Shane A Shapiro, Lorenzo O Hernandez, Daniel P Montero
Snapping pes anserinus syndrome is an often encountered cause of medial knee snapping. It results from impingement and translation of the gracilis tendon or semitendinosus tendon over the osseous structures of the knee during active flexion and extension. Ultrasonography is often the diagnostic imaging test of choice in cases of mechanical snapping. We report 2 cases of painful snapping pes anserinus and highlight the value of dynamic ultrasound in making an accurate diagnosis so as to direct care.
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/29138281/a-conserved-cytoskeletal-signaling-cascade-mediates-neurotoxicity-of-ftdp-17-tau-mutations-in-vivo
#3
Farah H Bardai, Liqun Wang, Yamini Mutreja, Mythili Yenjerla, T Chris Gamblin, Mel B Feany
The microtubule binding protein tau is strongly implicated in multiple neurodegenerative disorders, including frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17), which is caused by mutations in tau. In vitro, FTDP-17 mutant versions of tau can reduce microtubule binding and increase aggregation of tau, but the mechanism by which these mutations promote disease in vivo is not clear. Here we take a combined biochemical and in vivo modeling approach to define functional properties of tau driving neurotoxicity in vivo We express wild type human tau and five FTDP-17 mutant forms of tau in Drosophila using a site-directed insertion strategy to ensure equivalent levels of expression...
November 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29137727/the-quantitative-evaluation-of-the-relationship-between-the-forces-applied-to-the-palm-and-carpal-tunnel-pressure
#4
Kazutoshi Kubo, Yu-Shiuan Cheng, Boran Zhou, Kai-Nan An, Steven L Moran, Peter C Amadio, Xiaoming Zhang, Chunfeng Zhao
Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy occurring in upper limbs. The etiology, however, has not been fully understood yet. Median nerve could be compressed by either increase of carpal tunnel pressure (CTP) or direct impingement when it is forced toward to carpal ligament especially in wrist flexion leading to CTS development. Thus, the increase of carpal tunnel pressure is considered an important role in CTS development. It has been identified that forces applied to the palm would affect the CTP...
November 4, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29116328/correlation-between-femoroacetabular-impingement-and-hamstring-tendon-pathology-on-magnetic-resonance-imaging-and-arthrography
#5
Nakul Talathi, Scott LaValva, Angel Lopez-Garib, John D Kelly, Viviane Khoury
Femoroacetabular impingement (FAI) is an abnormality of the femoral head or acetabulum that leads to an increased incidence of cartilaginous injury in the hip. Femoroacetabular impingement has been associated with several structural abnormalities, including osteitis pubis and hip flexor dysfunction. The authors propose that, additionally, FAI may lead to increased damage of the hamstring tendon due to the additional stress placed on the tendon from the limited range of motion of the hip. The authors conducted a retrospective matched-pair study with the magnetic resonance imaging and magnetic resonance arthrography images of 40 patients' hamstrings with FAI and 45 age-matched controls...
November 1, 2017: Orthopedics
https://www.readbyqxmd.com/read/29111466/anxiety-and-insomnia-in-young-and-middle-aged-adult-hip-pain-patients-with-and-without-femoroacetabular-impingement-and-developmental-hip-dysplasia
#6
Heidi Prather, Andrew Creighton, Chris Sorenson, Scott Simpson, Maria Reese, Devyani Hunt, Monica Rho
BACKGROUND: Hip pain in young and middle- aged adults with and without hip deformity receive treatment focused primarily related to hip structure. Because their hip pain may be chronic, these patients develop other modifiable co-existing disorders related to pain that go undiagnosed in this young and active population including insomnia and anxiety. OBJECTIVE: The objective is to compare assessments of insomnia and anxiety in young and middle-aged adults presenting with hip pain with no greater than minimal osteoarthritis (OA) compared to asymptomatic (healthy) controls...
October 27, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29110905/extra-articular-hip-impingement-a-review-of-the-literature
#7
N Arévalo Galeano, N Santamaría Guinea, J Gredilla Molinero, M Grande Bárez
Hip and groin pain is a common clinical problem. Multiple causes can generate hip or groin pain, often sharing clinical and demographic characteristics. Diagnostic imaging tests play an important role in the etiological diagnosis. New forms of extra-articular hip impingement have recently been recognized as a cause of hip pain and limited function especially in young active patients. These conditions include ischiofemoral impingement, anterior inferior iliac spine and subspine impingement, iliopsoas impingement and greater trochanteric-pelvic impingement...
October 27, 2017: Radiología
https://www.readbyqxmd.com/read/29104560/in-a-heartbeat-light-and-cardiovascular-physiology
#8
REVIEW
Sarah L Chellappa, Ruta Lasauskaite, Christian Cajochen
Light impinging on the retina fulfils a dual function: it serves for vision and it is required for proper entrainment of the endogenous circadian timing system to the 24-h day, thus influencing behaviors that promote health and optimal quality of life but are independent of image formation. The circadian pacemaker located in the suprachiasmatic nuclei modulates the cardiovascular system with an intrinsic ability to anticipate morning solar time and with a circadian nature of adverse cardiovascular events. Here, we infer that light exposure might affect cardiovascular function and provide evidence from existing research...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29100001/effects-of-anterior-closing-wedge-tibial-osteotomy-on-anterior-cruciate-ligament-force-and-knee-kinematics
#9
Kent T Yamaguchi, Edward C Cheung, Keith L Markolf, Daniel V Boguszewski, Justin Mathew, David R McAllister, Frank A Petrigliano
BACKGROUND: A certain percentage of patients undergoing anterior cruciate ligament (ACL) reconstruction will experience graft failure, and there is mounting evidence that an increased posterior tibial slope (PTS) may be a predisposing factor. Theoretically, under tibiofemoral compression force (TFC), a reduced PTS would induce less anterior tibial translation (ATT) and lower ACL force. HYPOTHESIS: Ten-degree anterior closing wedge osteotomy of the proximal tibia will significantly reduce ACL force and alter knee kinematics during robotic testing...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29081704/influence-of-age-on-parameters-for-femoroacetabular-impingement-and-hip-dysplasia-in-x-rays
#10
Ulf-Krister Hofmann, Ingmar Ipach, Ina-Christine Rondak, Roland Syha, Marco Götze, Falk Mittag
OBJECTIVE: While several radiographic parameters have been established to describe the geometry and pathology of the hip, their reference values and clinical significance remain a matter of dispute. The present study tests the hypothesis that age has a relevant impact on radiographic hip parameters. METHOD: Pelvic antero-posterior views were measured for CE angle, Sharp's angle, acetabular depth-to-width ratio, femoral head extrusion index, roof obliquity, caput-collum-diaphyseal (CCD) angle, and Murray's femoral head ratio, and the values obtained were correlated with age...
September 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/29075914/sonographic-assessment-of-subacromial-bursa-distension-during-arm-abduction-establishing-a-threshold-value-in-the-diagnosis-of-subacromial-impingement-syndrome
#11
Gokhan Soker, Bozkurt Gulek, Eda Soker, Omer Kaya, Ibrahim Inan, Muhammet Arslan, Kaan Esen, Derya Memis, Cengiz Yilmaz
PURPOSE: In this study, we aimed to establish a quantitative threshold value in the diagnosis of subacromial impingement syndrome by measuring the thickness of the subacromial bursa during abduction and adduction. MATERIALS AND METHODS: Forty-five patients with subacromial impingement syndrome and 54 healthy individuals underwent dynamic shoulder ultrasonography. The subacromial bursa, between the supraspinatus tendon margin and peribursal adipose tissue, was measured between the acromion and humeral head at its widest part...
October 26, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29074345/effects-of-a-hip-brace-on-biomechanics-and-pain-in-people-with-femoroacetabular-impingement
#12
Nicolas R A Newcomb, Tim V Wrigley, Rana S Hinman, Jessica Kasza, Libby Spiers, John O'Donnell, Kim L Bennell
OBJECTIVES: This study evaluates whether hip bracing in patients with femoroacetabular impingement (FAI) (a) immediately reduces range of hip internal rotation, flexion, adduction, and pain during functional tasks; and (b) improves patient-reported outcomes when worn daily over 4 weeks. DESIGN: Within-participant design followed by a case series. METHODS: Twenty-five adults with symptomatic FAI underwent 3D kinematic assessment with and without a hip brace during single-leg squat, double-leg squat, stair ascent, and stair descent...
October 3, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29067535/prebending-of-osteosynthesis-plate-using-3d-printed-models-to-treat-symptomatic-os-acromiale-and-acromial-fracture
#13
Hanne Beliën, Hanne Biesmans, Anny Steenwerckx, Eric Bijnens, Carl Dierickx
BACKGROUND: A symptomatic os acromiale can lead to impingement syndrome and rotator cuff tendinopathy. An acromion fracture is often part of a more complex scapular trauma that needs stabilisation. METHODS: We developed a new technique using a three-dimensional (3D) model and a distal clavicle reconstruction plate to treat os acromiale and acromion fractures. Our hypothesis was that such an approach would be a useful addition to the existing techniques. First, a 3D model of the acromion was printed, then an osteosynthesis plate was pre-bent to fit the exact shape and curve of the acromion...
October 24, 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/29063864/structural-control-in-porous-compact-multilayer-systems-grown-by-magnetron-sputtering
#14
A Garcia-Valenzuela, C Lopez-Santos, R Alvarez, V Rico, J Cotrino, A R Gonzalez-Elipe, A Palmero
In this work we analyze a phenomenon that takes place when growing magnetron sputtered porous/compact multilayer systems by alternating the oblique angle and the classical configuration geometries. We show that the compact layers develop numerous fissures rooted in the porous structures of the film below, in a phenomenon that amplifies when increasing the number of stacked layers. We demonstrate that these fissures emerge during growth due to the high roughness of the porous layers and the coarsening of a discontinuous interfacial region...
October 23, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29058685/study-for-online-range-monitoring-with-the-interaction-vertex-imaging-method
#15
Christian Finck, Yusuf Karakaya, Valérian Reithinger, Regina Rescigno, Jérôme Baudot, Julie Constanzo, Didier Juliani, Jochen Krimmer, Ilaria Rinaldi, Marc Rousseau, Etienne Testa, Marie Vanstalle, Cedric Ray
Ion beam therapy enables a highly accurate dose conformation delivery to the tumor due to the finite range of charged ions in matter (i.e., Bragg Peak (BP)). Consequently, the dose profile is very sensitive to patients anatomical changes as well as minor mispositioning, and so it requires improved dose control techniques. Proton Interaction Vertex Imaging (IVI) could offer an online range control in carbon ion therapy. In this paper, a statistical method was used to study the sensitivity of the IVI technique on experimental data obtained from the Heidelberg Ion-Beam Therapy Center...
October 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29034325/collection-of-viable-aerosolized-influenza-virus-and-other-respiratory-viruses-in-a-student-health-care-center-through-water-based-condensation-growth
#16
Maohua Pan, Tania S Bonny, Julia Loeb, Xiao Jiang, John A Lednicky, Arantzazu Eiguren-Fernandez, Susanne Hering, Z Hugh Fan, Chang-Yu Wu
The dynamics and significance of aerosol transmission of respiratory viruses are still controversial, for the major reasons that virus aerosols are inefficiently collected by commonly used air samplers and that the collected viruses are inactivated by the collection method. Without knowledge of virus viability, infection risk analyses lack accuracy. This pilot study was performed to (i) determine whether infectious (viable) respiratory viruses in aerosols could be collected from air in a real world environment by the viable virus aerosol sampler (VIVAS), (ii) compare and contrast the efficacy of the standard bioaerosol sampler, the BioSampler, with that of the VIVAS for the collection of airborne viruses in a real world environment, and (iii) gain insights for the use of the VIVAS for respiratory virus sampling...
September 2017: MSphere
https://www.readbyqxmd.com/read/28993018/functional-correlates-of-the-position-of-the-axis-of-rotation-of-the-mandible-during-chewing-in-non-human-primates
#17
Jose Iriarte-Diaz, Claire E Terhune, Andrea B Taylor, Callum F Ross
The location of the axis of rotation (AoR) of the mandible was quantified using the helical axis (HA) in eight individuals from three species of non-human primates: Papio anubis, Cebus apella, and Macaca mulatta. These data were used to test three hypotheses regarding the functional significance of anteroposterior condylar translation - an AoR located inferior to the temporomandibular joint (TMJ) - during chewing: minimizing impingement of the gonial region on cervical soft tissue structures during jaw opening; avoiding stretching of the inferior alveolar neurovascular bundle (IANB); and increasing jaw-elevator muscle torques...
August 23, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/28992426/predictors-of-poor-clinical-outcome-after-arthroscopic-labral-preservation-capsular-plication-and-cam-osteoplasty-in-the-setting-of-borderline-hip-dysplasia
#18
Akihisa Hatakeyama, Hajime Utsunomiya, Shoichi Nishikino, Shiho Kanezaki, Dean K Matsuda, Akinori Sakai, Soshi Uchida
BACKGROUND: Borderline developmental dysplasia of the hip (BDDH) is frequently diagnosed concurrently with cam impingement. While hip arthroscopy has advanced the treatment of hip joint pathology, including femoroacetabular impingement (FAI), arthroscopic treatment for FAI in the setting of BDDH remains a challenge amid a subset of patients. The risk factors of poor clinical results after hip arthroscopic labral preservation and FAI corrections in the setting of BDDH patients have not been well established...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28971081/prevalence-of-femoroacetabular-impingement-morphology-in-asymptomatic-youth-soccer-players-magnetic-resonance-imaging-study-with-clinical-correlation
#19
Anthony Kerbes Yépez, Marcelo Abreu, Bruno Germani, Carlos Roberto Galia
OBJECTIVE: To determine the prevalence of femoroacetabular impingement morphology (FAIM), cam- or pincer-type, by magnetic resonance imaging (MRI) in asymptomatic adolescent soccer players, and to evaluate the possible correlation between alterations on MRI and clinical examination findings. METHODS: A cross-sectional study was conducted to determine the prevalence of FAIM in asymptomatic youth soccer players aged 13-18 years. A total of 112 hips in 56 players (mean age 15...
2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28964183/characterization-of-photo-multiplier-tube-as-ex-vessel-radiation-detector-in-tokamak
#20
Jungmin Jo, MunSeong Cheon, Junghee Kim, YoungHwa An, Seungil Park, Kyoung-Jae Chung, Y S Hwang
Feasibility of using conventional photo-multiplier tubes (PMTs) without a scintillator as an ex-vessel radiation detector in a tokamak environment is studied. Basic irradiation tests using standard gamma ray sources and a d-d neutron generator showed that the PMT is responding both to gamma photons and neutrons, possibly due to the direct generation of secondary electrons inside the PMT by the impingement of high energy photons. Because of the selective sensitivity of the PMT to hard x-ray and neutrons in ohmic and neutral beam injected plasmas, respectively, it is shown that the PMT with certain configuration can be utilized either to monitor the fluctuation in the fusion neutron generation rate or to study the behavior of runaway electrons in tokamaks...
September 2017: Review of Scientific Instruments
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