1,720,958 research outputs found
Clinical and functional outcomes after type B-C(AO/OTA) distal humeral fractures treated with locking compression plates: A retrospective study
No full textBACKGROUND: B-C (AO/OTA) fractures of distal humerus are lesions difficult to treat with results that are not always satisfactory. The aim of this study was to evaluate the outcome of patients with this type of fractures treated at our institute.
METHODS: A retrospective study considering 32 patients with mean age of 57.1 years (19-85) treated with open reduction and internal fixation (ORIF) for distal humerus articular fractures, 5 type B1, 1 type B2, 12 type C1, 4 type C2, 10 type C3 (AO/OTA), 29 closed fractures, 2 with grade I-II (Gustillo) of exposure, 1 with point exposure. Surgical exposures used are triceps-on and olecranon osteotomy, while the synthesis was performed with locking compression plates. The average follow-up was 42.7 months (79-9). The radiograms performed during the standard controls were evaluated and the Mayo Elbow Performance Score was used for functional evaluation.
RESULTS: Average MEPS of 90.6 (55-100), excellent in 68.8%, good 18.7%, fair, 6.3% and poor 6.3%. Average flexion of 125.1 ° (40-140°) with an average deficiency of 11 ° (0-40°). All olecranial osteotomies healed, no pseudoarthrosis was found. Registered complications: 2 wound dehiscences, 7 cases with residual hypoesthesia in the territory of the ulnar nerve, 1 mobilization of a healed fracture screw, 3 cases with presence of joint ossifications and marked rigidity with subsequent surgical revision.
CONCLUSIONS: ORIF with orthogonal construct and locking compression plates is an optimal technique for the treatment of distal humerus articular fractures. Associated with an early mobilization leads to an excellent functional result with a minimum rate of complications
Use of pulsed radiofrequency electromagnetic field (Prfe) therapy for pain management and wound healing in total knee and reverse shoulder prosthesis: Randomized and double-blind stud
Full text linkPulsed radiofrequency Electromagnetic field (PRFE) has a long history about treatment of various medical conditions. Several clinical studies have demonstrated its safety and efficacy as a treatment for pain, edema, and soft tissue injury. In this pilot, prospective, randomized and double-blind study, a wearable, energy-emitting PRFE therapy device (MetiMed, Performance Hospital Srl, Seriate, Italy) was used to control postoperative pain and to accelerate wound healing in patients who underwent total knee or reverse shoulder prosthesis. We enrolled in the study 50 consecutive patients who had a total knee arthroplasty or a reverse shoulder prosthesis. The subjects were randomly assigned to receive a placebo or active PRFE device for 20 postoperative days. Postoperative pain was assessed with a 0-to 10-point visual analog scale (VAS). The use of painkillers was also registered. The healing of surgical scars was assessed with Vancouver Scar Scale (VSS) (total score ranging from 0 to 13, with 0 representing normal skin). Consecutive VAS scores in the 20 days of the study showed no significant decrease in the control group with a day 1 to day 20 difference of 1.48 VAS points. On the other side, VAS score in the study group showed a steady decline (VAS score difference was 4.2 VAS points). The use of painkillers was lower in the group that received PRFE therapy.VSS score in the active group showed a steady decline (day 1 to day 20 difference was 3.92 VSS points) while the VSS scores showed no significant improvement in the placebo group (0.88 VSS points). According to these findings, PRFE therapy in this form is an excellent, safe, drug-free method of postoperative pain control and wound healing in patients who undergo total knee or reverse shoulder prosthesis. © EuroMediterranean Biomedical Journal 2018
Single-use, patient-specific instrumentation technology in knee arthroplasty: a comparative study between standard instrumentation and PSI efficiency system
No full textPatient-specific instrumentation is a surgical technique that was created to improve the accuracy of implantation, surgical time and workflow in total knee arthroplasty. This study is a single-center, single-surgeon randomized clinical trial. The aim of this work was to evaluate clinical efficacy of PSI versus standard surgical instrumentation in malalignment risk and blood loss reduction. From April 2015 to September 2016, 40 patients for a total of 40 knees were included in the randomization process. Each patient underwent CT scan of the lower limb including hip, knee and ankle joint with the realization of the PSI system and the TKA with Medacta GMK Primary®. Patients were evaluated 1 month after surgery with X-ray and after 2 months with clinical examination and assessment by Knee Society Score (KSS). Blood loss was detected by adding the values calculated in the operative room and the blood loss in the vacuum systems. In the study group, mean value of KSS was 85.2 (IC 95% 81.2–88.5), mean blood loss was 657 ml (IC 95% 580.6–735.4), and mean value of femorotibial angle was 178.8° (IC 95% 178.5–179.3). In the control group, mean value of KSS was 87.2 (IC 95% 85.3–89.4), mean blood loss was 866.5 ml (IC 95% 763.3–972.5), and mean value of femorotibial angle was 178.9°(IC 95% 177.6–180.3). The Student t test detected a significant difference in blood loss between groups (p < 0.05), and no differences were found between KSS. The single-use instrumentation should improve precision, operative time, turnover time, sterilization and maintenance costs and could help to reduce infection risks. Our results confirm only the improvement on reducing blood loss. In our opinion, this technique should be used in selected patients when the surgeon could have some difficulties to perform femoral cuts on coronal plane or when patients need to have a very little blood loss due to other 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
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
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
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