1,720,989 research outputs found
Elbow arthroplasty: current techniques and complications
No full textThis handbook provides detailed, state-of-the-art information on total elbow replacement, covering all relevant aspects, from basic science and pathogenesis to clinical and instrumental evaluation, and treatment techniques. Elbow arthroplasties have undergone a considerable evolution in recent decades due to better anatomical and biomechanical knowledge, continuous development of biomaterials, improvement of operative techniques and better definition of the surgical indications. This book enables readers to better understand the main indications, the outcomes and the complications following total elbow arthroplasty, radial head arthroplasty, radiocapitellar arthroplasty and distal humerus hemiarthroplasty. The closing section addressing the post-operative management of the patients who have undergone elbow replacement is provided in order to optimize the relationship between the orthopedic surgeon and the rehabilitation physician. Written by leading experts in the field, the book is an invaluable tool for experienced surgeons, orthopedic residents and shoulder fellows
The Elbow:Principles of Surgical Treatment and Rehabilitation
No full textThis book provides readers with detailed guidance on the evaluation, diagnosis, and treatment of injuries and disorders of the elbow, including dislocation, complex instability, articular fractures, epicondylitis and epitrochleitis, distal biceps and triceps tendon injuries, peripheral nerve pathology, snapping triceps syndrome, elbow stiffness, and upper limb compartment syndrome. The choice between conservative and surgical treatment in different settings is clearly explained, and detailed advice offered on selection of surgical technique. A separate section provides a deeper understanding of the most common sports-related elbow pathologies, and their management, based on careful correlation with the movements performed by athletes in particular sports. Extensive consideration is also given to rehabilitation and physiotherapy protocols. This book will be of value for all orthopedic surgeons and other specialists who care for patients with elbow injuries, which can represent a challenge even to the more experienced
Humeral fracture between a total elbow and total shoulder arthroplasty
No full textThis article presents a case of a 71-year-old woman with a humeral fracture between a cementless reverse total shoulder arthroplasty and a cemented total elbow arthroplasty and discusses our treatment plan. Surgical treatment was performed after the patient was informed of possible complications and the benefits of surgery including: early, complete restoration of arm anatomy, greater functional improvement of the adjacent joints, and increased risk of nonunion with nonoperative treatment. The fracture was comminuted and extended proximally around the shoulder prosthesis. Through the posterior approach, the radial nerve was identified and protected. Both prostheses were found firmly fixed to bone. The fracture around the shoulder prosthesis was reduced first using a strut allograft and reduction clamps. Next, arm alignment restoration and distal humerus reduction were performed. The construct was neutralized with a 3.5-mm locking plate spanning the whole length of the humerus. The locking plate was positioned posterolaterally and the strut medially in a 90° to 90° configuration secured with wires and cables. A hinged elbow brace was applied for 6 weeks postoperatively. Active range of motion exercises of the wrist and hand and passive motion of the elbow and shoulder were started at 4 to 5 days postoperatively. At 2 weeks postoperatively, passive motion of the elbow and shoulder progressed to strengthening exercises. Thereafter, the patient underwent several weeks of physical therapy to restore motion, strength, and function of the upper extremity with instructions not to overload the arm and avoid heavy work and sports for as long as 1 year. At 10 months postoperatively, radiographs of the arm showed a stable construct; the patient had resumed full activities of daily living
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
Periprosthetic fractures of the humerus.
No full textClassifications have been previously reported and biomechanical studies have been performed, but the management of humeral fractures between implants remains problematic. At the time of arthroplasty, planning of the optimum length of the prostheses is required, especially for patients being considered for a second arthroplasty in the ipsilateral elbow or shoulder. Current treatment may be conservative if reduction can be obtained and the prostheses are stable, or it may be surgical using internal fixation with plates, strut grafts, double plates, or a plate and strut graft construct if the fracture extends around the components of the prosthesis and autogenous bone grafting
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
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