Search results for "Facet"
showing 10 items of 75 documents
Tissue Sparing Posterior Cervical Indirect Decompression and Fusion in Foraminal Stenosis
2016
Treatment for patients with cervical foraminal stenosis that present with cervical radiculopathy has experienced rapid progress. Cervical spine surgical options have improved through advances in imaging, instrumentation, implant innovations and novel surgical techniques. While historical treatments are largely safe, comorbidities associated with procedures such as ACDF, TDR, and posterior foraminotomy beg the question if these procedures are too much surgery for select patients that could benefit from a tissue sparing approach. This chapter will introduce a novel, less disruptive surgical technique for achieving indirect decompression and fusion utilizing an intervertebral cervical implant.…
Estudio observacional en cuanto a mejoría de la calidad de vida y del control del dolor de la radiofrecuencia fría en comparación con la radiofrecuen…
2023
Introducción. La denervación por radiofrecuencia de los ramos mediales lumbares es uno de los tratamientos más efectivos y con más evidencia para tratar el dolor lumbar crónico de origen facetario. Hipótesis. El uso de RF fría se relaciona con una mayor mejoría en la calidad de vida y en el control del dolor en comparación con el uso de la RFC en pacientes con dolor crónico de raquis lumbar de origen facetario. Material y Métodos. Estudio observacional de base individual con un seguimiento prospectivo de los pacientes, tamaño muestral de 61 pacientes, en el cual se comparan ambas modalidades de RF. Resultados. Los resultados en los cuestionarios ODI, SF-12, SALUD y HAD (cuestionario ansieda…
Fasetes un to lietošana zināšanu organizācijā
2018
Pētījums „Fasetes un to lietošana zināšanu organizācijā” veikts, lai izpētītu FAST sistēmas attīstību un tās lietošanas aspektus, kā arī ārvalstu bibliotēku pieredzi. Tika aplūkota arī zināšanu organizācijas nozīme informacionālajā vidē, kā arī fasetes un to lietošana klasifikācijā. Pētījuma teorētisko bāzi veido pragmatisms, hermeneitiskais aplis un domēna (darbības lauka) analīzes teorija. Pētījumā tika izmantota kvalitatīvā pētījuma stratēģija un metodes. Pētījumā tika sniegts FAST nosaukuma un terminu – ‘fasete’, ‘fasetpriekšmetošana’ un ‘fasešu priekšmetu termins’ skaidrojums latviešu valodā. Pētījumā tika noskaidroti un apkopoti ārvalstu pētnieku un bibliotēku ekspertu viedokļi par FA…
"Only Spinal Fixation" as Surgical Treatment of Cervical Myelopathy Related to Ossified Posterior Longitudinal Ligament: Review of 52 Cases.
2020
Background Ossification of the posterior longitudinal ligament (OPLL) is a hyperostotic condition resulting in a progressive narrowing of the spinal canal and subsequent neurologic deficits. Although systemic and local factors in combination with genetic abnormality have been considered in its etiopathogenesis, OPLL remains a poorly understood pathology. Surgical management of OPLL and the choice of the most appropriate treatment are still controversial issues. Here the authors report a series of OPLL-affected patients treated by “only-fixation” technique. Methods Between June 2012 and June 2019, 52 patients having OPLL were treated by a surgical strategy involving only spinal fixation with…
Photoactivity of shape-controlled TiO2 in gas-solid regime under solar irradiation
2019
Abstract Differently shape-controlled anatase TiO2 materials were tested as photocatalysts under both simulated and natural solar irradiation. Their photocatalytic activity in 2-propanol and propene partial oxidation and in the complete mineralization of acetaldehyde appears to increase with decreasing the shape control of the TiO2 material. This insight seems to be related to the residual presence of the templating species (fluoride anions) employed during the preparation of the shape-controlled TiO2 materials. In fact, the calcination of the powders, leading to levelling of the fluoride ions content, but also to a remarkable surface area decrease, gave rise to an increase of photocatalyti…
Stellenwert der MR-Tomographie bei traumatischen Patellaluxationen
1995
PURPOSE To describe the MR imaging findings in patients with lateral patellar dislocation. MATERIAL AND METHODS The MRIs of 31 patients with patellar dislocation were evaluated retrospectively. Arthroscopic surgery was performed in 23 cases. RESULTS Hemarthrosis was found in 30/31, contusions of the lateral femoral condyle in 30/31 and of the medial patellar facet in 26/31 cases. Injury of the medial patellar retinaculum was seen in 28/31 cases. Osteochondral fractures were found in 18 patients; compared to arthroscopy there were one false-positive and 5 false-negative findings concerning loose cartilage bodies. In 7 cases, patellar dislocation was not suspected before MR imaging. CONCLUSIO…
Lumbar facet joint stabilization for symptomatic spinal degenerative disease: A systematic review of the literature
2022
Objective: Lumbar spinal degenerative disease (LSDD), unresponsive to conservative therapy, is commonly treated by surgical decompression and interbody fusion. Since facet joint incompetence has been suggested as responsible for the entire phenomenon of spinal degeneration, facet stabilization can be considered as an alternative technique to treat symptomatic spinal degenerative disease. The purpose of this study was to systematically review the literature for studies utilizing lumbar facet joint fixation techniques for LSDD to assess their safety and efficacy. Methods: A systematic literature review was performed following the preferred reporting items for systematic reviews and meta-analy…
Contributions of longitudinal studies to evolving definitions and knowledge of developmental dyscalculia
2013
Abstract In the last 20 years, longitudinal studies have demonstrated that it is important to attend to the stability of mathematical performance over time as a facet of dyscalculia, that the manifestation of mathematics difficulties changes with development, and that individual differences in cognitive profiles and learning trajectories observed in children with mathematics difficulties implicate differences between dyscalculic and non-dyscalculic subgroups. Intra-individual differences over time, and external factors related to children's learning environments, also contribute to performance trajectories; moreover, these factors may explain the inconsistent performance profiles observed a…
Radiofrequency Ablation for Chronic Lumbar Zygapophyseal Joint Pain Using a V-Shaped Active Tip Needle: An Observational Retrospective Study
2023
Giuliano Lo Bianco,1,2 Giovanni Misseri,2 Agnes R Stogicza,3 Gregoretti Cesare,2,4 Sean Li,5 Miles Day,6 David J Kennedy,7 Michael E Schatman8,9 1Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy; 2Anesthesiology and Pain Department, Fondazione Istituto âG. Giglioâ, Cefalù, Palermo, Italy; 3Anesthesia and Pain, Saint Magdolna Private Hospital, Budapest, Hungary; 4Department of Surgical, Oncological and Oral Science (Di.Chir.On.S.), University of Palermo, Palermo, Italy; 5National Spine and Pain Centers, Shrewsbury, NJ, USA; 6Pain Research, The Pain Center at Grace Clinic, Texas Tech University HSC, Lubbock, TX, USA; 7Department of PM&R, V…
Structural characterization of CdTe layers grown on (0001) sapphire by MOCVD
2004
Abstract We report on the growth of CdTe layers directly onto (0 0 0 1) sapphire substrates by MOCVD. The structure and morphology of the layers have been investigated as a function of growth temperature and II/VI precursor molar ratio by X-ray diffraction and scanning electron microscopy. The texture of the samples has revealed the existence of a temperature threshold, with higher growth temperatures resulting on completely (1 1 1) oriented layers. Some of these layers contained microtwins, as indicated by the extra peaks in the {4 2 2} Φ scans, leading to the existence of two different domains. The structural quality of each domain, as well as of the sample as a whole, has been determined…