1,720,969 research outputs found

    Il trattamento ortesico dell'ulcera plantare diabetica: off-load o re-load?

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    Tra le complicanze croniche del diabete mellito quelle che coinvolgono il piede sono tra le più frequenti ed invalidanti. La lesione iniziale è di solito un’ulcera plantare, che rappresenta l’epifenomeno di un’alterazione biomeccanica della distribuzione dei carichi, che nel paziente diabetico non viene compensata a causa della micro e macroangiopatia. Il trattamento ortesico di tale lesione risulta pertanto fondamentale per evitare l’evoluzione della patologia che spesso conduce all’amputazione. La nostra esperienza ci ha dimostrato che è necessario realizzare delle ortesi che riequilibrino i carichi plantari (re-load). Lo scarico completo della zona dell’ulcera (off-load) tende infatti a creare un fenomeno di ristagno dei cataboliti, rallentando il processo di guarigione e favorendo invece l’approfondirsi della lesione

    Protesi di prima generazione Pipino-Calderale e seconda generazione Vittore-Simone

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    History of total ankle replacement starts in the 70s as alternative procedure to arthrodesis, with the aim to resolve pain and restore motion. Our tradition starts in 1975, five years after Lord-Marotte ankle prosthesis, with the first generation model Pipino-Calderale. Starting from this experience we realized and implanted in 1998 a second generation model, custom-made Vittore-Simone. Starting point for development of both implants is an accurate study of instantaneous centres of rotation in normal and pathologic ankles, together with a finite element analysis. The demonstration that wide resections of talar dome, modifying the geometrical arrangement of trabeculae of cancellous bone, compromise the perfect balance of uniform distribution of forces, leads us to only remove articular cartilage of talar dome instead its resection, in order to preserve the structural and vascular integrity. Our replacement doesn’t preclude an eventual arthrodesis in case of implant failure. We have a 30 years follow-up for five Pipino-Calderale models and up to 10 years for ten custom-made Vittore-Simone. Results are good for both models with satisfaction of patients and improvement of AOFAS score. Two Pipino-Calderale presented a minimal talar collapse. All custom-made implants are still in situ

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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