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How to Perform a Complete Arthroscopic Assessment of the Scapholunate Joint Complex
No full textScapholunate instability can result in debilitating pain, dysfunction, and secondary arthritis. Diagnosis is primarily based on a combination of clinical and radiological parameters. However, wrist arthroscopy is regarded as the gold standard for definitive confirmation to identify the extent of a scapholunate instability, with specific attention to the integrity of the extrinsic ligamentous system, which is probably more important than the intrinsic ligament. We discuss how to perform a step-by-step, comprehensive, and complete arthroscopic assessment of the entire scapholunate complex
Arthroscopic dorsal capsuloligamentous repair for scapholunate tear: results of 31 cases at a minimum follow up of 12 months
No full textContexte : les lésions du complexe scapholunaire (SL) sont la première cause d’instabilité carpienne et peuvent entraîner à long terme une arthrose de type SLAC. Méthode : nous rapportons les résultats de 31 patients présentant une rupture du SL, aigüe ou chronique, stade 2, 3 et 4 de la classification de Garcia-Elias sans bascule du scaphoïde ou avec une modification réductible de l’angle scapholunaire. Tous les patients ont été revus au recul minimum de 12 mois pour une évaluation clinique, fonctionnelle et radiologique. Résultats – 18 hommes et 13 femmes ont été inclus avec un âge moyen de 40 ans (14-67 ans). En préopératoire, nous avons relevé 3 cas d’instabilité pré-dynamique, 23 cas d’instabilité dynamique et 5 cas d’instabilité statique. En peropératoire, nous avons constaté 2 ruptures SL EWAS 3b, 16 EWAS 3c et 13 ruptures EWAS 4. Tous les patients ont été revus avec un recul moyen de 13,9 mois. Au dernier recul, aucun patient ne présentait de douleur au repos ou à l’effort. Les mobilités du poignet étaient significativement améliorées avec un gain de 18,4° en flexion, un gain d’extension de 18,8° et de meilleures amplitudes en inclinaison ulnaire et radiale (p<0,001). La force de poigne était similaire ou supérieure au côté controlatéral. Le score QuickDASH était de 6 (8) contre 46 (17) en préopératoire (p<0,001). Pour les cas d’instabilité pré-dynamique et dynamique, les radiographies au dernier suivi étaient normales. Pour les cas d’instabilité statique, on notait une modification persistante ou une augmentation de l’angle scapholunaire avec une bascule du lunatum en DISI dans 2 cas. Lors du suivi, nous avons mis en évidence 4 cas d’algodystrophie. Conclusion : la suture capsuloligamentaire dorsale du SL sous arthroscopie est une technique fiable pour le traitement des instabilités scapholunaires pré-dynamiques ou dynamiques, aigües ou chroniques, et évite une arthrotomie dorsale enraidissante.Background: injury to the scapholunate complex is the most frequent cause of carpal instability and carpal arthrosis known as SLAC (scapholunate advanced collapse).. Methods: we report the results of a retrospective study on 31 patients with SL injury, acute or chronic, treated by arthroscopic dorsal capsuloligamentous repair. Only patients with Garcia-Elias stage 2 and 3 (normal scaphoid alignment) or 4 (reducible carpal misalignment) were eligible for surgery. All patients underwent functional evaluation, clinical examination and radiographs with a minimum follow up of 12 months. Results: 18 males and 13 females were included with a mean age of 40 years (14-67). Preoperatively there were 3 cases of pre-dynamic instability, 23 cases of dynamic instability and 5 cases of static instability. During surgery we evaluated 2 SL tears as EWAS 3b, 15 EWAS 3c and 13 EWAS 4. All patients were seen at a mean follow up of 13,9 months. Every patients were painless during rest or activities. Wrist range of motion was better with a gain of 18,4° in flexion, 18,8° in extension and better radial or ulnar deviation (p<0,001). Grip strength was as good or better compare to the unaffected side. QuickDASH score was 6 (8) vs 46 (17) preoperatively (p<0,001). We had 4 cases of complex regional pain syndrome. We had no scapholunate gap or scapholunate and radiolunate angle changes on last radiographs for cases of pre-dynamic and dynamic instability. Patients with static instability had unchanged or increased scapholunate angle with 2 cases of DISI but patients remained asymptomatic. Conclusion: arthroscopic scapholunate capsuloligamentous repair is a reliable treatment for pre-dynamic or dynamic scapholunate instabilities, acute or chronic, and avoid arthrotomy and weakening of secondary stabilizers. However we do not recommend this technique for static instability with scapholunate angle modification
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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