• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 327
  • 180
  • 71
  • 48
  • 21
  • 14
  • 13
  • 13
  • 9
  • 9
  • 6
  • 5
  • 5
  • 5
  • 5
  • Tagged with
  • 824
  • 168
  • 151
  • 109
  • 75
  • 66
  • 65
  • 56
  • 54
  • 48
  • 44
  • 44
  • 43
  • 41
  • 39
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
331

Incidence des fractures au Québec et leur suivi clinique

Jean, Sonia 18 April 2018 (has links)
Les fractures associées à l'ostéoporose constituent un problème de santé publique majeur, affectant chaque année un nombre croissant d'individus. Le fardeau de ces fractures est non seulement important en raison de la mortalité et de la morbidité associées à ces fractures, mais aussi à cause des coûts de soins de santé qui y sont reliés. Dans ce contexte, le développement d'outils en matière de surveillance de ces fractures s'est révélé essentiel. Les travaux de cette thèse de doctorat ont pour but d'évaluer la faisabilité de l'utilisation des données recueillies dans le fichier des services rémunérés à l'acte de la Régie de l'assurance maladie du Québec (RAMQ) pour l'identification des cas incidents de fracture, d'établir un portrait populationnel des fractures chez les femmes de 50 ans et plus et de quantifier leurs impacts en termes de mortalité et d'utilisation des ressources des soins de santé. Pour atteindre cet objectif, une première étude rétrospective utilisant le fichier des services rémunérés à l'acte de la RAMQ nous a permis de vérifier et de comparer l'exactitude de plusieurs algorithmes utilisés pour l'identification des cas incidents de fracture. Les résultats de cette étude montrent que l'utilisation de ce fichier pour identifier les cas incidents de fracture est réalisable. De plus, l'excellente validité de l'algorithme sélectionné permet d'obtenir des estimateurs précis et valides de l'occurrence des fractures dans la population. À l'aide de l'algorithme validé et le jumelage des données provenant des fichiers médico-administratifs, deux autres études ont été réalisées afin de quantifier les taux d'incidence des fractures, d'évaluer leurs impacts sur la survie des patientes de 50 ans et plus, et d'estimer l'utilisation des ressources médicales dans l'année suivant la fracture. Selon les résultats de ces études, les fractures de fragilisation sont fréquentes chez les femmes de 50 ans et plus. Les fractures de la hanche, du fémur et du bassin sont plutôt rares avant l'âge de 70 ans, mais augmentent substantiellement après cet âge. Tel que prévisible, ces fractures ont un impact important sur la survie des patientes, lequel peut persister plusieurs années après la fracture. De plus, ces fractures nécessitent le recours à de nombreuses ressources médicales puisqu'une grande proportion des femmes présentant ce type de fracture sont hospitalisées. Finalement, nous avons également observé que les autres fractures périphériques surviennent fréquemment après l'âge de 50 ans et que certaines de ces fractures ont aussi un impact sur la survie des patientes. De plus, l'utilisation des ressources médicales associées aux traitements des fractures périphériques est non négligeable tant sur le plan des soins cliniques liés aux traitements chirurgicaux et aux consultations médicales, que sur le plan des hospitalisations. En conclusion, les résultats de nos travaux montrent qu'il est possible d'utiliser le fichier des services rémunérés à l'acte de la RAMQ pour effectuer le repérage des cas incidents de fracture dans la population. L'algorithme développé permet d'élargir la surveillance des fractures pour englober non seulement les fractures de la hanche, mais aussi l'ensemble des sites de fractures associées à l'ostéoporose. De plus, la méthodologie utilisée, qui repose sur l'utilisation de l'algorithme validé et le jumelage des données médico-administratives, permet non seulement d'obtenir des indicateurs sur la prévalence, l'incidence et la mortalité, mais offre également l'opportunité d'élargir la surveillance à d'autres indicateurs tels que ceux qui concernent l'utilisation des services de santé. Par conséquent, nous pouvons conclure que cette méthode permet d'obtenir, de manière efficace et peu coûteuse, des indicateurs d'une grande qualité, tout en offrant l'opportunité d'effectuer de façon continue une surveillance populationnelle des fractures au Québec.
332

The effectiveness of an educational intervention on pain management and post-operative outcomes of Chinese patients with fracture limb. / CUHK electronic theses & dissertations collection

January 2009 (has links)
Aim. The overall aims of this study were to develop a tailor-made educational intervention and to examine its effectiveness on short- and longer-term outcomes among Chinese patients with traumatic limb fractures who had undergone surgery. / Background. Fracture limb and undergoing surgery is the common problem after injury. It is the most common source of pain and anxiety and research continues to demonstrate a high prevalence of unrelieved pain in injured patients who have undergone surgery. Patient's belief in pain is the major barrier in pain management. Strategies directed to have appropriate educational interventions are urgently needed to improve patient outcomes for those suffering acute pain after surgery for traumatic limb fracture. / Conclusion. The C-BEI was effective in terms of reducing the pain barrier, providing post-operative pain relief, reducing anxiety, and improving sleep satisfaction in patients with fractured limbs during their first week of hospitalization after surgery. This study has generated evidence supporting the use of a C-BEI in acute pain management. / Method. The study was conducted in the orthopaedic wards of two regional hospitals in Hong Kong and comprised two phases. In phase one, qualitative interviews were conducted with twenty-six Chinese patients who had traumatic limb fractures and were undergoing surgery regarding their experiences of and beliefs about pain management. Ten orthopaedic nurses were also interviewed about their perceived pain management practices and the barriers that prevented better pain control among patients. The findings from these qualitative interviews were used to develop a cognitive behavioural approach educational intervention (C-BEI). C-BEI was used to enhance knowledge of pain, modify their beliefs about pain management and promote positive coping thoughts and behaviour. The C-BEI consisted of two sessions. The first was a 30-minute session comprised a combination of patient education and breathing relaxation exercise and conducted at T0 (1 day before surgery). A 30-minute reinforcement session was conducted at day 7 after surgery (T3). / Results. A total of 125 participants completed the study, with 62 in the experimental group and 63 in the control group. The participants were homogenous in terms of demographic data (P > 0.05) and baseline clinical characteristics (p > 0.05). The short-term outcomes (from T0 to T3) for the participants in the experimental group were a statistically significant with lower pain barrier (p = .003), lower level of pain (p = .003), lower level of anxiety (p < .001), and better sleep satisfaction (p = .001) than the control group. The experimental group had a significantly higher frequency of analgesic use at T2 (p < .001) and better self-efficacy in pain management at T3 (p = .011) than the control group. There were no statistically significant differences in the total length of stay in hospital, although the mean length of stay was shorter in the experimental group than in the control group (8.1 day VS 10.1 days). For longer-term effects, the C-BEI was effective at the post-operative stage in anxiety reduction ( p = .002) and sleep satisfaction improvement (p = .002). There were no statistically significant differences for the VAS pain level, GSE scores, physical health summary component (PCS) and mental health summary component (MCS) of the SF36 between two groups over three months, although the experimental group had better scores in the mental health dimension. Findings of the process evaluation showed that most participants perceived the C-BEI as effective in enhancing their knowledge on pain management and the use of analgesics, and helping them to cope with pain, the could sleep better and regain self-control. / The main study was conducted in phase II which consisted of outcomes and process evaluation. A quasi-experimental design of two groups' pre-test and post-test between subjects was employed for the outcomes evaluation. All participants in the experimental group received the C-BEI and usual care, whereas those in the control group received usual care only. The short-term outcomes were treated as primary outcomes and evaluated in terms of the participants' pain barrier score, pain level (Visual Analogue Pain Scale: VAS, anxiety level (State-Trait Anxiety Inventory:STAI), sleep satisfaction, self-efficacy in pain management (General Self Efficacy Scale: GSE), and frequency of analgesic use. All of which were measured at T0, T1 (day 2), T2 (day 4), and T3 (day 7) after surgery. The total length of stay in hospital of the two groups was also compared. Longer-term outcomes were further evaluated over three months at T4 (1 month) and T5 (3 months), and included the VAS pain level, STAI, sleep satisfaction, GSE and health-related quality of life (SF36).The intention-to-treat method was adopted. The process evaluation involved a qualitative study using telephone interviews. / Wong, Mi Ling, Eliza. / Adviser: Sally Chan. / Source: Dissertation Abstracts International, Volume: 71-01, Section: B, page: 0231. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references (leaves 256-278). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest Information and Learning Company, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstracts in English and Chinese.
333

Approche Clinique de l'Informatique

Plantard, Pascal 14 November 1992 (has links) (PDF)
Modélisation des usages des dispositifs TICE dans l'éducation spécialisée des enfants et des adolescents ainsi que dans l'insertion des adultes victimes d'exclusion.<br />Notre approche clinique de l'informatique met l'ordinateur au service de la pédagogie et du transfert et donc, dans sa finalité, au service du sujet. Il s'agit de rompre avec les pratiques traditionnelles d'aide et d'éducation qui dérivent trop souvent sur des logiques de domination et d'assistance donc d'aliénation. Nous avons tenté de créer un environnement humain et technologique offrant à des personnes en difficulté un cadre favorisant l'autonomie et l'émancipation, ce qui nous paraissait la seule voie d'insertion véritablement stable.
334

Delivery of BMP-2 for bone tissue engineering applications

Johnson, Mela Ronelle 04 January 2010 (has links)
Bone defects and fracture non-unions remain a substantial challenge for clinicians due to a high occurrence of delayed union or non-union requiring surgical intervention. The current grafting procedures used to treat these injuries have many limitations and further long-term complications associated with them. This has resulted in research efforts to identify graft substitution therapies that are able to repair and replace tissue function. Many of these tissue engineered products include the use of growth factors to induce cell differentiation, migration, proliferation, and/or matrix production. However, current growth factor delivery methods are limited by poor retention of growth factors upon implantation resulting in low bioactivity. These limiting factors lead to the use of high doses and frequent injections, putting the patients at risk for adverse effects. The goal of this work was to develop and evaluate the efficacy of BMP-2 delivery systems to improve bone regeneration. We examined two approaches for delivery of BMP-2 in this work. First, we evaluated the use of a self-assembling lipid microtube system for the sustained delivery of BMP-2. We determined that sustained delivery of BMP-2 from the lipid microtube system was able to enhance osteogenic differentiation compared to empty microtubes, however did not demonstrate a significant advantage compared to a bolus BMP-2 dose in vitro. Second, we developed and assessed the functionality of an affinity-based system to sequester BMP-2 at the implant site and retain bioactivity by incorporating heparin within a collagen matrix. Incorporation of heparin in the collagen matrix improved BMP-2 retention and bioactivity, thus enhancing cell-mediated mineralized matrix deposition in vitro. Lastly, the affinity-based BMP-2 delivery system was evaluated in a challenging in vivo bone repair model. Delivery of pre-bound BMP-2 and heparin in a collagen matrix resulted in new bone formation with mechanical properties not significantly different to those of intact bone. Whereas delivery of BMP-2 in collagen or collagen/heparin matrices had similar volumes of regenerated mineralized tissue but resulted in mechanical properties significantly less than intact bone properties. The work presented in this thesis aimed to address parameters currently preventing optimal performance of protein therapies including stability, duration of exposure, and localization at the treatment site. We were able to demonstrate that sustained delivery of BMP-2 from lipid microtubes was able to induce osteogenic differentiation, although this sustained delivery approach was not significantly advantageous over a bolus dose. Additionally, we demonstrated that the affinity-based system was able to improve BMP-2 retention within the scaffold and in vitro activity. However, in vivo implantation of this system demonstrated that only delivery of pre-complexed BMP-2 and heparin resulted in regeneration of bone with mechanical properties not significantly different from intact bone. These results indicate that delivery of BMP-2 and heparin may be an advantageous strategy for clinically challenging bone defects.
335

Etude du transport et de la dispersion dans les milieux fracturés

Boschan, Alejandro 05 September 2007 (has links) (PDF)
La dispersion de colorant dans des écoulements newtoniens ou rhéofluidifiants a été étudiée optiquement dans deux fractures modèles rugueuses et transparentes. L'évolution du front de déplacement est analysé en fonction du temps et de la vitesse moyenne $U$ . Pour des rugosités de parois monodisperses et distribuées aléatoirement, l'étalement du front est diffusif ($\Delta x \propto t^{0.5}$) et caractérisé par une dispersivité $l_d$. Aux faibles vitesses, $l_d \simeq$ cst: la dispersion est dominée par les fluctuations spatiales de la vitesse et est amplifiée pour les fluides rhéofluidifiants ; aux vitesses élevées, $l_d$ augmente avec $U$ à cause de la dispersion de Taylor mais plus faiblement pour les fluides rhéofluidifiants. Pour une fracture avec deux parois autoaffines complémentaires décalées perpendiculairement à $U$, des chenaux macroscopiques s'étendent sur toute la longueur de la fracture suivant $U$ : l'épaisseur globale du front augmente alors linéairement avec le temps et plus fortement dans le cas rhéofluidifiant (étalement advectif). La croissance de l'épaisseur locale du front est par contre diffusive et due à la dispersion de Taylor.
336

Axial pull-out strength of 3.5 cortical and 4.0 cancellous bone screws placed in canine proximal tibias using manual and power tapping

Demko, Jennifer Lynn, January 2008 (has links)
Thesis (M.S.)--Mississippi State University. Department of Clinical Sciences, College of Veterinary Medicine. / Title from title screen. Includes bibliographical references.
337

Kineziterapijos poveikis šlaunies raumenų jėgai, apimčiai ir judesių amplitudei patyrus šlaunikaulio lūžį / Effects of physiotherapy on thigh muscle strength and circumferences, hip amplitude of the movements in patients after femur fractures

Zarembaitė, Evelina 10 September 2013 (has links)
Darbo objektas: kineziterapijos poveikis. Darbo tikslas: Nustatyti šlaunies raumenų jėgos, apimties ir judesių amplitudės pokyčius, taikant kineziterapiją, patyrus šlaunikaulio lūžį su poslinkiu ir be jo. Darbo uždaviniai: 1. Nustatyti ir palyginti šlaunies raumenų jėgą, patyrus šlaunikaulio lūžį su poslinkiu ir be jo, po 24 dienų kineziterapijos. 2. Nustatyti ir palyginti klubo sąnario judesių amplitudę, patyrus šlaunikaulio lūžį su poslinkiu ir be jo, prieš kineziterapiją, po 12 ir 24 dienų kineziterapijos. 3. Nustatyti ir palyginti šlaunies raumenų apimtį ir skausmą, patyrus šlaunikaulio lūžį su poslinkiu ir be jo, prieš kineziterapiją, po 12 ir 24 dienų kineziterapijos. 4. Įvertinti judėjimo funkciją ir savarankiškumą, patyrus šlaunikaulio lūžį su poslinkiu ir be jo, prieš kineziterapiją, po 12 ir 24 dienų kineziterapijos. Išvados: 1. 24 dienų kineziterapija turėjo teigiamą poveikį šlaunies raumenų jėgai patyrus šlaunikaulio lūžį su poslinkiu ir be jo. 2. 24 dienų kineziterapija turėjo teigiamą poveikį šlaunies lenkimo amplitudei patyrus šlaunikaulio lūžį su poslinkiu ir be jo. Patyrus šlaunikaulio lūžį be poslinkio, po kineziterapijos šlaunies lenkimo amplitudė buvo didesnė. 3. 24 dienų kineziterapija neturėjo reikšmingo poveikio šlaunies apimčiai ir skausmui patyrus šlaunikaulio lūžį su poslinkiu ir be jo. 4. 24 dienų kineziterapija neturėjo reikšmingo poveikio funkciniui mobilumui ir savarankiškumui patyrus šlaunikaulio lūžį su poslinkiu ir be jo. / The Object: effects of physiotherapy. Aim of study: To determine thigh muscle strength and circumferences, hip amplitude of the movements changes in patients after femur fractures with and without displacement using physiotherapy. Goals of study: 1. To determine and compare thigh muscle strenght after femur fracture with and without displacement after 24 days of physiotherapy. 2. To determine and compare hip amplitude of the movements after femur fracture with and without displacement before physiotherapy, after 12 and 24 days of physiotherapy. 3. To determine and compare thigh circumferences and pain after femur fracture with and without displacement before physiotherapy, after 12 and 24 days of physiotherapy. 4. To assess movement mobility and independence after femur fracture with and without displacement before physiotherapy, after 12 and 24 days of physiotherapy. Conclusions: 1. 24 days of physiotherapy had a positive effect on thigh muscle strength suffered femur fracture with and without displacement. 2. 24 days of physiotherapy had a positive effect on thigh flexion amplitude suffered femur fracture with and without displacement. Suffered femur fracture without displacement, the thigh flexion amplitude was higher after physiotherapy. 3. 24 days of physiotherapy hadn’t significant effect on thigh circumferences and pain suffered femur fracture with and without displacement. 4. 24 days of physiotherapy hadn‘t significant effect on movement mobility and... [to full text]
338

Bedömning av kognitiv förmåga hos äldre patienter med höftfraktur : assessment of cognitive function in elderly patients with hip fractures /

Söderqvist, Anita, January 2007 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2007. / Härtill 4 uppsatser.
339

Health economics of osteoporosis /

Borgström, Fredrik, January 2006 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2006. / Härtill 4 uppsatser.
340

Arbetsterapeutisk träning efter höftfraktur : aktivitetsförmåga och hälsorelaterad livskvalitet /

Hagsten, Birgit, January 2006 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2006. / Härtill 4 uppsatser.

Page generated in 0.0442 seconds