1,721,055 research outputs found
Humeral shaft aseptic non-union in elderly patients: treatment with opposite structural allograft, BMP-7 and mesenchymal stem cells
No full textAutologous stem cell therapy of large bone defects
No full textTerapia dei gravi difetti ossei con cellule midollari autologh
Clinical and radiographic results of acute acromioclavicular type III dislocation: low incidence of scapular dyskinesis and sick scapula syndrome at long term follow-up.
Full text linkIntroduction The ideal treatment for acute type III acromioclavicular (AC) dislocations is controversial. In fact, the literature reports little evidence on which treatment (surgical versus conservative) results in better clinical outcome. Recently, evidences for long term better outcome of surgical treatment have been published in literature, and development of scapular dyskinesis and SICK scapular syndrome following conservative treatment was described. Materials and methods We evaluated 34 patients surgically treated for acute type III AC dislocations with different techniques. Functional outcome, radiographic evaluation of clavicular reduction and scapular kinematics were all evaluated. Results Excellent Constant shoulder score (mean 95.7 points, SD ± 5.3) and Simple Shoulder Test (mean 11.2 points, SD ± 0.8) results were observed. In 4 patients recurrence of separation was observed. Scapular dyskinesis was observed in only 4 (11.7 %) patients, of which only 1 (2.9 % of the sample) was affected by SICK scapula syndrome. Scapular dyskinesis was classified as type I in 3 cases (75 %) and type III in 1 case (25 %).
Discussion Excellent Constant shoulder score (mean 95.7 points, SD ± 5.3) and Simple Shoulder Test (mean 11.2 points, SD ± 0.8) results were observed. In 4 patients recurrence of separation was detected. The incidence of scapular dyskinesis and SICK scapula syndrome in the present study was significantly lower with respect to conservative treatment. On the other hand, the distribution of dyskinesis types was comparable, suggesting a possible common cause. However, pathogenesis of scapular dyskinesis following type III AC dislocation is still not clear: periscapular muscle dynamic stabilisation seems to be the means by which the scapula correctly accomplishes its functions, while the results hereby presented do not allow surely establishing a correlation between clavicle reduction and scapular dysfunctional syndromes. Conclusions Excellent clinical results for surgical treatment of type III acute AC joint dislocations at long term follow up are confirmed. Surgical treatment is also associated with a lower incidence of scapular dyskinesis and SICK scapula syndrome if compared to conservative treatment
Anatomic reinsertion of the distal biceps tendon rupture through a single anterior approach: extensile or mini-invasive approach? A retrospective study at mean 45-month follow-up
No full textPurpose: To evaluate and compare clinical results and complication rate of a standard and mini-invasive reconstruction technique for distal biceps tendon rupture. Methods: Twenty-eight cases of biceps tendon rupture were evaluated at mean 45-month follow-up. A standard anterior approach was used in 19 cases, and a less invasive anterior approach was used in nine cases. Suture anchors were used for tendon reconstruction in all cases. Elbow range of motion (ROM), subjective strength recovery, time to return to work and sports activities, and complications were recorded. Disability of the Arm, Shoulder and Hand Score (DASH) the Oxford Elbow Score (OES), and the Mayo Elbow Performance Score (MEPS) were obtained for all patients. Results: Mean ROM recovery was almost complete. Mean subjective strength recovery allowed full return to sports and work in 93 % of cases, within mean 3-month postoperative. Mean DASH, OES, and MEPS scores were good. The clinically relevant complications rate was 17.8 %, all associated with the standard extensile approach group (Group A). Asymptomatic heterotopic ossifications were detected in four cases (14.3 %), not affecting functional recovery. Conclusions: Clinical results and complications rate of anatomical reconstruction of the distal biceps tendon rupture were comparable to the literature. Comparison between Group A and B showed no significant differences in terms of ROM, and OES and MEPS scores. Strength recovery, time to return to sports and work, and DASH score showed a positive trend in Group B. The clinically relevant complications rate was 0 % in Group B and 26 % in Group A
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
Surgical Neck Fracture
No full textThis book covers every aspect of humeral fractures from the proximal to the distal tip, including surgical and nonsurgical treatment, rehabilitation and more. Common fixation techniques are described with the help of high-quality illustrations.16The treatment of humeral fractures is a complex issue and the source of considerable controversy. In the case of fractures of the proximal humerus, early range of motion is the main aim of treatment. If a fracture modifies the anatomy or function of the glenohumeral and scapulothoracic joints, the surgeon must adhere meticulously to treatment principles in order to ensure a satisfactory outcome. Humeral shaft fractures are frequent, accounting for 1% to 3% of all fractures in adults; while excellent functional results have been reported with nonoperative management, open reduction and internal fixation is preferred in specific clinical settings. In contrast, intra-articular fractures of the distal humerus are frequently complex and full functional recovery is difficult to achieve.This volume clearly explains the concepts that are central to an understanding of humeral fractures from the proximal to the distal tip. Indications for different forms of treatment, including nonsurgica16l, are presented in detail, and all of the commonly used fixation techniques are described with the help of high-quality illustrations. Further important aspects such as complications, rehabilitation, and treatment of sequelae are also fully considered. This book will be an invaluable and comprehensive aid for all surgeons who treat humeral fractures.04PART 1 Proximal humerus: 1 Main anatomy.- 2 Understanding the Fracture.- 3 Operating theatre setup.- 4 Closed reduction principles.- 5 Surgical Approaches.- 6 Percutaneous fixation: when and how.- 7 ORIF in three-/four-part fractures.- 8 Intramedullary nail rationale and surgical technique.- 9 Anatomical shoulder arthroplasty.- 10 Reverse total shoulder arthroplasty.- 11 Surgical neck fracture.- 12 The tuberosities.- 13 Malunions of the tuberosity.- 14 Nerve injuries.- 15 Fracture dislocations.- 16 Treatment of the sequelae.- 17 Conservative treatment.- PART 2 The diaphysis: 18 Surgical anatomy.- 19 Radial palsy and humerus fractures.- 20 Internal Fixation: plate or IM Nail.- 21 External fixation.- 22 Periprosthetic fracture.- PART 3 Distal Humerus: 23 Surgical anatomy.- 24 Surgical approaches and fracture pattern.- 25 Internal fixation principles.- 26 Prosthesis.- 27 External fixation when and how.- 28 Malunion and non union.- 29 Terrible triad.13From the book reviews:"This book represents an attractive concept in the age of information technology that allows easy Internet access to almost all data. ... This book is written for practitioners and residents who want detailed information on humeral fractures in general, or on a specific fracture. ... it is a potentially useful addition to an academic medical library that wants to be complete, and where the medical librarian identifies that medical personnel are using books as reference sources." (Samuel J. Chmell, Doody's Book Reviews, February, 201
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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