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Long head of the biceps tendon rupture in professional wrestlers: treatment with a mini-open tenodesis
No full textPercutaneous pinning of 3-or 4-part fractures of proximal humerus in elderly patients in poor general conditions: MIROS® versus traditional pinning
No full textIntroduction
Elderly subjects often have fractures of the proximal humerus, which may be difficult to manage in patients in poor general conditions. The MIROS is a new percutaneous pinning device allowing correction of angular displacement and stable fixation of fracture fragments.
Aim
To evaluate the results of percutaneous fixation of 3- or 4-part fractures of proximal humerus of patients in ASA (American Society of Anesthesiologists) physical status 3 or 4 treated either with MIROS or traditional percutaneous pinning (TPP).
Methods
31 patients treated with MIROS and 27 undergoing TPP were enrolled in the study. Preoperatively, anteroposterior and transthoracic or axillary radiographs were obtained in all cases and CT scans in patients with most complex fractures. Follow-up evaluations were carried out at 3, 6,12 and 16 weeks, and 6 months, 1 year and 2 years postoperatively, using the Constant Score (CS) and Subjective Shoulder Value (SSV) methods.
Results
52 of the 58 patients could be evaluated at all follow-ups. In both 3- or 4-part fractures there were significantly higher CS and SSV scores in the MIROS compared to TPP group at all late follow-ups. A lower rate of deep infection, pin tract infection and pin mobilization were found in the MIROS group (p<0.001). In both groups there was a significant association between final result (CS) and either the type of fracture and complications (p<0.001).
Conclusion
The MIROS gave better clinical results and less complications than TPP in elderly patients. This method, however, may not be indicated for younger patients in good general conditions
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Percutaneous pinning of 3- or 4- part fractures of proximal humerus in elderly patients in poor general conditions: MIROS versus traditional pinning.
No full textPURPOSE: Elderly subjects often have fractures of the proximal humerus, which may
be difficult to manage in patients in poor general condition. The MIROS is a new
percutaneous pinning device allowing correction of angular displacement and
stable fixation of fracture fragments. We evaluated the results of percutaneous
fixation of three- or four-part fractures of the proximal humerus of patients in
the American Society of Anesthesiologists physical status three or four treated
either with MIROS or traditional percutaneous pinning (TPP). METHODS: A total of
31 patients treated with MIROS and 27 undergoing TPP were enrolled in the study.
Pre-operatively anteroposterior and transthoracic or axillary radiographs were
obtained in all cases and computed tomography scans in patients with the most
complex fractures. Follow-up evaluations were carried out at three, six, 12 and
16 weeks, and six months, one year and two years postoperatively, using the
Constant Score (CS) and subjective shoulder value (SSV) methods. RESULTS: Of the
58 patients, 52 could be evaluated at all follow-ups. In both three- or four-part
fractures there were significantly higher CS and SSV scores in the MIROS compared
to the TPP group at all the late follow-ups. Lower rates of deep infection, pin
tract infection and pin mobilisation were found in the MIROS group (p < 0.001).
In both groups there was a significant association between the final result (CS)
and either the type of fracture or complications (p < 0.001). CONCLUSIONS: The
MIROS resulted in better clinical results and less complications than TPP in
elderly patients. This method, however, may not be indicated for younger patients
in good general condition
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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