Search results for "Placement"
showing 10 items of 1142 documents
ICR in human cadaveric specimens: An essential parameter to consider in a new lumbar disc prosthesis design.
2020
[EN] Study design Biomechanical study in cadaveric specimens. Background The commercially available lumbar disc prostheses do not reproduce the intact disc's Instantaneous centre of Rotation (ICR), thus inducing an overload on adjacent anatomical structures, promoting secondary degeneration. Aim To examine biomechanical testing of cadaveric lumbar spine specimens in order to evaluate and define the ICR of intact lumbar discs. Material and Methods Twelve cold preserved fresh human cadaveric lumbosacral spine specimens were subjected to computerized tomography (CT), magnetic resonance imaging (MRI) and biomechanical testing. Kinematic studies were performed to analyse range of movements in or…
Failed Total Hip Arthroplasty: Diagnostic Performance of Conventional MRI Features and Locoregional Lymphadenopathy to Identify Infected Implants.
2020
Background Very little has been published about the diagnostic performance of MRI in total hip arthroplasty (THA) infection. Purpose To determine the diagnostic performance of conventional MRI features and of new lymph nodal indices to identify infection in patients with failed THA. Study type Retrospective. Population In all, 119 patients (66 females; age 66.9 ± 12.4 years) with failed THA. Field strength/sequences Metal artifact reduction sequence (MARS) protocol including short tau inversion recovery and turbo spin-echo T1 - and T2 -weighted sequences at 1.5T. Assessment Patients underwent pelvis MRI prior to failed THA revision. MRIs were reviewed to identify periprosthetic bone destruc…
Analysis of an interferometric optical fibre detection technique applied to silicon vibrating sensors
1987
A simple and accurate analysis of a single-mode optical fibre interferometric displacement detection technique is resented. This analysis is in good agreement with experimental measurements, and shows that angular alignment between the fibre and the sensor is the most critical parameter.
Les exclus de la mobilité : de l'observation à la décision
2014
In contemporary societies, mobility is considered as a social norm necessary for integration. Conversely, immobility is often seen as the opposite. Therefore, it is associated with a significant risk of exclusion. An approach in terms of exclusion involves a sociological orientation. Nevertheless, this thesis follows a geographical approach. Thus, a first question emerges from this disciplinary position: immobility is it a geographical object? Furthermore, it is possible to consider the mobility and immobility as equivalent and not opposed. This means that their impact may not be reversed. This position engages a second question: the relationship between immobility and exclusion is it legit…
Theoretical approaches for geometric optimization of urban forms : towards a fractal development of the city
2017
This thesis aims to establish a urban structure that optimizes inhabitant's preferences. In other words, we want to find out which city shape answers the best the residents' aspirations, according to their consumption preferences for urban and green amenities. By considering a theoretical field of study and by characterizing the population by a Cobb-Douglas behavioral pattern, we will build step by step a city, assuming successive arrivais of new individuals, in order to find out which geometric shape gives the most suitable answer. The final goal of this thesis is there to suggest a city with a fractal shape as an appro- priate answer to the resident's expectations. We will show that this …
Immediate Loading with Fixed Full-Arch Prosthesis in the Edentulous Patient: Treatment Protocol
2019
Immediate loading is basically a prosthetic concept. However, the surgical implantological planning is very important to ensure a primary stability in the total edentulous patient. This characteristic is crucial to allow immediate loading in this type of patients. For the first time, the incisional design has allowed the clinician to overview about the surgical side. Later, maybe, the bone will need an osteoplasty to regularize possible bone defects. To ensure primary stability, it can use methods to enhance primary stability as undersized drilling technique and use of osteotomes and bi-cortical anchorage implants. There are two main protocols to obtain temporary immediate loading full-arch…
Introduction to Immediate Loading in Implantology
2019
Branemark traditional recommendation was to perform implant rehabilitation in two stages: the first entry was only for implant placement; after 3–6 months of undisturbed submerged healing for mandible and maxilla, respectively, a second surgical entry would have allowed loading of the implants. The rationale behind this approach was that implant micro-movements as consequence by an inadequate primary stability, caused by functional forces at the bone-implant interface in the early wound healing stages, could have induced fibrous tissue formation rather than new bone, eventually causing clinical failure. The main request was to reduce the overall rehabilitation time from surgery to final res…
Guided Surgery and Immediate Loading
2019
Computer-assisted implant dentistry can contribute for a better treatment planning, for the implementation of the implant placement, for capturing the intraoral situation, for processing data to design temporary and final prostheses, and for the manufacturing of prosthetic components.
Molte Palermo. Temi
2019
Nel tema delle incompiute idee di città possibili si riconoscerà il paradigma connotativo dello stesso divenire di Palermo, lungo un percorso millenario di processi di trasformazione nessuno dei quali portato a compimento, in virtù di quel valore distintivo di exemplum che non necessita di ulteriori e conclusive dimostrazioni. Il corso della storia, del resto, ha imposto a Palermo il ciclico riproporsi di destini interrotti. Tale si rilevò l’invenzione della città capitale, quella della “quadratura geometrica e della croce di strade” sovrimpressa a quella archetipica e fondativa della Pan-ormos scambiatrice. E l’incompiutezza sarà il tratto distintivo della città dei rettifili stradali otto…
Pedagoģiskie risinājumi pieaugušo ar autismu iekļaušanai darba tirgū
2016
Mūsdienu sabiedrībā ir īpaši svarīgi zināt un izprast nodarbinātības situāciju cilvēkiem ar autisma spektra traucējumiem un viņu iekļaušanās darba tirgū nosacījumus, kā arī izcelt darba mediatoru lomu un darba svarīgumu. Diemžēl šie jautājumi bieži netiek risināti. Šī darba teorētiskajā sadaļā raksturoti autisma spektra traucējumi pieaugušo vecumā un izklāstīti principi, kas sekmē cilvēku ar autisma spektra traucējumiem iekļaušanos darba tirgū. Tiek arī vērsta uzmanība uz citiem aspektiem, kas ar to saistīti, piemēram, sociāli emocionālo attīstību, patstāvību un brīvā laika organizēšanas principiem. Empīriskajā daļā, izmantojot anketas, nestrukturētas intervijas un novērošanu, tiek identifi…