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https://www.readbyqxmd.com/read/28543599/optimization-of-screw-fixation-in-rat-bone-with-extracorporeal-shock-waves
#1
Marianne K E Koolen, Moyo C Kruyt, Amir A Zadpoor, F C Öner, Harrie Weinans, Olav P van der Jagt
Screw fixation in osteoporotic patients is becoming an increasing problem in orthopaedic surgery as deterioration of cortical and cancellous bone hamper biomechanical stability and screw fixation. This might result in delayed weight-bearing or failure of instrumentation. We hypothesized that local peri-operative shock wave treatment can optimize osseointegration and subsequent screw fixation. In eight female Wistar rats, two cancellous and two cortical bone screws were implanted in both femora and tibiae. Immediately after implantation, 3...
May 24, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28536215/sesamoid-osteonecrosis-treated-with-radial-extracorporeal-shock-wave-therapy
#2
Dawn Thompson, Nikos Malliaropoulos, Nat Padhiar
Sesamoid osteonecrosis is a disabling condition resulting in severe forefoot pain, for which there are limited treatment options. We present a 52-year-old man with 1-year history of pain, aggravated by walking and playing tennis. On examination, pain was localised to plantar aspect of the first metatarsophalangeal joint. Imaging revealed evolving end-stage avascular necrosis of lateral sesamoid with early secondary degenerative changes. Previous exhaustive conservative treatment had been unsuccessful in alleviating his pain...
May 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28524671/chiral-shock-waves
#3
Srimoyee Sen, Naoki Yamamoto
We study the shock waves in relativistic chiral matter. We argue that the conventional Rankine-Hugoinot relations are modified due to the presence of chiral transport phenomena. We show that the entropy discontinuity in a weak shock wave is quadratic in the pressure discontinuity when the effect of chiral transport becomes sufficiently large. We also show that rarefaction shock waves, which do not exist in usual nonchiral fluids, can appear in chiral matter. The direction of shock wave propagation is found to be completely determined by the direction of the vorticity and the chirality of fermions...
May 5, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28522857/combined-therapy-with-shock-wave-and-retrograde-bone-marrow-derived-cell-transplantation-for-osteochondral-lesions-of-the-talus
#4
Fuqiang Gao, Na Chen, Wei Sun, Bailiang Wang, Zhencai Shi, Liming Cheng, Zirong Li, Wanshou Guo
Multiple treatment strategies have been developed for osteochondral lesions (OCLs) of the talus. The purpose of this retrospective study was to assess retrograde autologous bone marrow cell (BMC) transplantation via core drilling (CD) combined with focused extracorporeal shock wave treatment (ESWT) in undisplaced OCL of the talus. A total of 69 patients with unilateral osteochondral lesions of the talus (Hepple grade I-III) were divided into two groups: 41 patients received combined therapy of ESWT and BMC transplantation (group A), while 28 were administered BMC transplantation alone (group B)...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521550/detection-and-evaluation-of-renal-injury-in-burst-wave-lithotripsy-using-ultrasound-and-magnetic-resonance-imaging
#5
Philip Clark May, Wayne Kreider, Adam D Maxwell, Yak-Nam Wang, Bryan W Cunitz, Philip M Blomgren, Cynthia Johnson, Joshua Sh Park, Michael R Bailey, Donghoon Lee, Jonathan D Harper, Mathew D Sorensen
PURPOSE: Burst wave lithotripsy (BWL) is a transcutaneous technique with potential to safely and effectively fragment renal stones. Preclinical investigations of BWL require the assessment of potential renal injury. This study evaluates the capabilities of real-time ultrasound and magnetic resonance imaging (MRI) to detect and evaluate BWL injury that was induced in porcine kidneys. MATERIALS AND METHODS: Ten kidneys from five female farm pigs were treated with either a 170 kHz or 335 kHz BWL transducer using variable treatment parameters and monitored in real time with ultrasound...
May 18, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28521497/thermal-decomposition-of-nitromethane-and-reaction-between-ch3-and-no2
#6
Akira Matsugi, Hiroumi Shiina
The thermal decomposition of gaseous nitromethane and the subsequent bimolecular reaction between CH3 and NO2 have been experimentally studied using time-resolved cavity-enhanced absorption spectroscopy behind reflected shock waves in the temperature range 1336-1827 K and at pressure of 100 kPa. Temporal evolution of NO2 was observed following the pyrolysis of nitromethane (diluted to 80-140 ppm in argon) by monitoring the absorption around 400 nm. The primary objectives of the current work were to evaluate the rate constant for the CH3 + NO2 reaction (k2) and to examine the contribution of the roaming isomerization pathway in nitromethane decomposition...
May 19, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28516973/salivary-lithotripsy-in-the-era-of-sialendoscopy
#7
P Capaccio, S Torretta, L Pignataro, M Koch
The traditional management of obstructive salivary disorders has been replaced by minimally-invasive gland-preserving techniques including shock-wave lithotripsy, sialendoscopy, interventional radiology and endoscopically video-assisted trans-oral and cervical stone retrieval, of which sialendoscopy is considered to be the method of first choice. Primary endoscopically controlled stone extraction without prior fragmentation is only possible in 15-20% of cases; in more than 80%, fragmentation is necessary because of the size, impactation and location of the stone, or an alternative treatment such as transoral duct surgery or combined approaches are required...
April 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28516381/listening-to-music-during-shock-wave-lithotripsy-decreases-anxiety-pain-and-dissatisfaction-a%C3%A2-randomized-controlled-study
#8
Ozgur Cakmak, Sertac Cimen, Huseyin Tarhan, Rahmi Gokhan Ekin, Ilker Akarken, Volkan Ulker, Orcun Celik, Cem Yucel, Erdem Kisa, Batuhan Ergani, Taha Cetin, Zafer Kozacioglu
BACKGROUND: We analyzed the effects of music on pain, anxiety, and overall satisfaction in patients undergoing a shock wave lithotripsy (SWL) procedure. METHODS: A total of 200 patients scheduled to undergo SWL were included in this study. Group 1 consisted of 95 patients who listened to music during the SWL session while group 2 included 105 patients who did not listen music during the procedure. State-Trait Anxiety Inventory (STAI) was used to assess state and trait anxiety (STAI-S/T)...
May 17, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28515658/flow-visualisation-of-a-normal-shock-impinging-over-a-rounded-contour-bump-in-a-mach-1-3-free-stream
#9
Kin Hing Lo, Konstantinos Kontis
ABSTRACT: An experimental study has been conducted to visualise the instantaneous streamwise and spanwise flow patterns of a normal shock wave impinging over a rounded contour bump in a Mach 1.3 free-stream. A quartz-made transparent shock generator was used, so that instantaneous images could be captured during the oil-flow visualisation experiments. Fluorescent oil with three different colours was used in the surface oil-flow visualisation experiment to enhance the visualisation of flow mixing and complicated flow features that present in the flow field...
2017: Journal of Visualization
https://www.readbyqxmd.com/read/28514395/-impact-of-shock-wave-therapy-on-the-clinical-and-functional-status-of-patients-with-coronary-heart-disease
#10
S T Matskeplishvili, B M Borbodoeva, E U Asymbekova, A Z Rakhimov, N K Akhmedyarova, K B Kataeva, Yu I Buziashvili
AIM: To study of the impact of shock-wave therapy (SWT) on the functional status of patients with coronary heart disease (CHD). SUBJECTS AND METHODS: Thirty-four CHD patients (including 33 men) with left ventricular (LV) asynergic segments, as evidenced by echocardiography (EchoCG), were examined. Their mean age was 60.1±1.76 years. All the patients received a SWT cycle according to the standard scheme. The patient examination protocol involved EchoCG, dobutamine EchoCG, treadmill exercise EchoCG, and tissue Doppler EchoCG, which were performed at baseline, immediately and one month after the end of a SWT cycle...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28503471/correction-effectiveness-of-lower-energy-density-extracorporeal-shock-wave-therapy-in-the-early-stage-of-avascular-necrosis-of-the-femoral-head
#11
Yong Han, June-Kyung Lee, Bong-Yeon Lee, Hoi-Sung Kee, Kwang-Ik Jung, Seo-Ra Yoon
[This corrects the article on p. 871 in vol. 40, PMID: 27847717.].
April 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28487350/combining-doxorubicin-nanobubbles-and-shockwaves-for-anaplastic-thyroid-cancer-treatment
#12
Francesca Marano, Roberto Frairia, Letizia Rinella, Monica Argenziano, Benedetta Bussolati, Cristina Grange, Raffaella Mastrocola, Isabella Castellano, Laura Berta, Roberta Cavalli, Maria Graziella Catalano
Anaplastic thyroid cancer is one of the most lethal diseases and a curative therapy does not exist. Doxorubicin, the only drug approved for anaplastic thyroid cancer treatment, has a very low response rate and causes numerous side effects among which cardiotoxicity is the most prominent. Thus, doxorubicin delivery to the tumor site could be an import goal aimed to improve drug efficacy and to reduce its systemic side effects. We recently reported that, in human anaplastic thyroid cancer cell lines, combining doxorubicin-loaded nanobubbles with extracorporeal shock waves, acoustic waves used in lithotripsy and orthopedics without side effects, increased the intracellular drug content and in vitro cytotoxicity...
May 9, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28486783/extracorporeal-shock-wave-therapy-in-situ-a-novel-approach-to-obtain-an-activated-fat-graft
#13
E Priglinger, M Sandhofer, A Peterbauer-Scherb, C Wurzer, C Steffenhagen, J Maier, W Holnthoner, S Nürnberger, H Redl, S Wolbank
One of the mainstays of facial rejuvenation strategies is volume restoration which can be achieved by autologous fat grafting. In our novel approach, we treated the adipose tissue harvest site with extracorporeal shock wave therapy (ESWT) in order to improve the quality of the regenerative cells in situ. The latter was demonstrated by characterizing the cells of the stromal vascular fraction (SVF) in the harvested liposuction material regarding cell yield, ATP content, proliferative capacity, surface marker profile, differentiation potential and secretory protein profile...
May 9, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28484901/racemization-of-valine-by-impact-induced-heating
#14
Yoshihiro Furukawa, Atsushi Takase, Toshimori Sekine, Takeshi Kakegawa, Takamichi Kobayashi
Homochirality plays an important role in all living organisms but its origin remains unclear. It also remains unclear whether such chiral molecules survived terrestrial heavy impact events. Impacts of extraterrestrial objects on early oceans were frequent and could have affected the chirality of oceanic amino acids when such amino acids accumulated during impacts. This study investigated the effects of shock-induced heating on enantiomeric change of valine with minerals such as olivine ([Mg0.9, Fe0.1]2SiO4), hematite (Fe2O3), and calcite (CaCO3)...
May 9, 2017: Origins of Life and Evolution of the Biosphere
https://www.readbyqxmd.com/read/28480842/dinamics-of-knee-joint-space-asymmetry-on-x-ray-as-a-marker-of-knee-osteoarthritis-rehabilitation-efficacy
#15
N Sheveleva, L Minbayeva, Y Belyayeva
Reducing of articular cartilage functional volume in knee joint osteoarthritis occurs unevenly and accompanied with pathological changes of lower limb axis as a result of connective tissue and muscle structures dysfunction. Evaluation of X-ray knee joint space asymmetry seems to be informative to analyze the dynamics of lower extremities biomechanical imbalances characteristic for knee joint osteoarthritis. However, standardized method of X-ray joint space determining does not include its symmetry calculation...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28474533/ct-texture-analysis-of-ex-vivo-renal-stones-predicts-ease-of-fragmentation-with-shockwave-lithotripsy
#16
Helen Wei Cui, Wout Devlies, Samuel Ravenscroft, Hendrik Heers, Andrew Freidin, Robin Cleveland, Balaji Ganeshan, Ben W Turney
Introduction Understanding the factors affecting success of shock wave lithotripsy (SWL) would improve informed decision-making on the most appropriate treatment modality for an individual patient. Although stone size and skin-to-stone distance do correlate with fragmentation efficacy, it has been shown that stone composition and architecture, as reflected by structural heterogeneity on CT, are also important factors. This study aims to determine if CT Texture Analysis (CTTA)-a novel, non-destructive, and objective tool that generates statistical metrics reflecting stone heterogeneity-could have utility in predicting likelihood of SWL success...
May 5, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28471234/protective-effects-of-diltiazem-and-tadalafil-on-shock-wave-induced-kidney-injury-in-rats
#17
G Ozmerdiven, B A Vuruskan, O Kaygisiz, H Vuruskan
BACKGROUND: We aimed to compare the protective effects of tadalafil and diltiazem on renal histology after ischemia and reperfusion injury in a rat model of shock wave lithotripsy. METHODS: A total of 40 adult, male Sprague-Dawley rats were randomized into four groups as follows; control group (group C), group S (SWL + nephrectomy), group T (SWL + tadalafil given before nephrectomy) and group D (SWL + diltiazem given before nephrectomy). Both kidneys were evaluated regarding tubular damage, peritubular fibrosis and heat shock protein-70 (HSP-70) immune-expression of glomeruli, cortical and medullar collector tubules on light microscopy...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28469806/radial-extracorporeal-shock-wave-therapy-improves-cerebral-blood-flow-and-neurological-function-in-a-rat-model-of-cerebral-ischemia
#18
Nan Kang, Jing Zhang, Xiaotong Yu, Yuewen Ma
We performed middle cerebral artery occlusion (MCAO) in rats to investigate the effect and some of the underlying mechanisms of radial extracorporeal shock wave therapy (rESWT) in cerebral ischemia rats. We measured neurological function and cerebral blood flow (CBF) using a full-field laser perfusion imager and brain infarct volume on days 3, 12, and 30. Immunofluorescence, western blot, and real-time polymerase chain reaction (PCR) techniques were used to detect the expression of vascular endothelial growth factor (VEGF), neuron-specific enolase (NSE), nestin, Wnt3a, and β-catenin in the ischemic hemisphere...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28469768/the-mtor-fak-mechanotransduction-signaling-axis-for-focal-adhesion-maturation-and-cell-proliferation
#19
Fan-Yen Lee, Yen-Yi Zhen, Chun-Man Yuen, Raymond Fan, Yen-Ta Chen, Jiunn-Jye Sheu, Yi-Ling Chen, Ching-Jen Wang, Cheuk-Kwan Sun, Hon-Kan Yip
BACKGROUND: Mechanotransduction (MTD) is an important physiopathological signalling pathway associated with cardiovascular disease such as hypertension. Phosphorylation of focal adhesion kinase (FAK) is a MTD-sensing protein. This study tested the hypothesis that mTOR-FAK MTD signaling axis was crucial for focal adhesion (FA) maturation and cell proliferation. METHODS: Shock-wave was adopted as a tool for MTD and mTOR-FAK signaling. RESULTS: After demonstrating a failure in FAK phosphorylation after microfilament depolymerization, we attempted to identify the upstream regulator out of three kinases known to be activated in pressure-stimulated MTD [i...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28467724/a-novel-decision-aid-to-support-informed-decision-making-process-in-patients-with-a-symptomatic-non-lower-pole-renal-stone-20-mm-in-diameter
#20
Mehmet Ilker Gökce, Barış Esen, Adem Sancı, Çağrı Akpınar, Evren Süer, Ömer Gülpınar
Introduction Stone disease is an important health problem and patients have different treatment choices. Shared decision making is recommended for deciding the treatment type but patient education is necessary. Decision aids (DAs) are used for this aim and herein we developed a novel DA for patients with symptomatic non-lower pole renal stones <20 mm in diameter. Materials and methods The DA development process was established based on the recommended guides. General characteristics of the stone disease and details of the shock wave lithotripsy and retrograde intrarenal surgery were included in the content of the DA...
May 3, 2017: Journal of Endourology
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