scholarly journals Analysis of the coaptation role of the deltoid in reverse shoulder arthroplasty. A preliminary biomechanical study

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0255817
Author(s):  
Lucas Martinez ◽  
Margaux Machefert ◽  
Thomas Poirier ◽  
Jean Matsoukis ◽  
Fabien Billuart
Keyword(s):  
Shoulder Arthroplasty ◽  
Reverse Shoulder Arthroplasty ◽  
Biomechanical Model ◽  
3D Models ◽  
Moment Arm ◽  
Rater Agreement ◽  
Stabilizing Effect ◽  
The Moment ◽  
The Impact

Background Lateralization of the glenoid implant improves functional outcomes in Reverse Shoulder Arthroplasty. Lateralization does not appear to impact the Deltoid’s Moment Arm. Therefore, the stabilizing effect described in the literature would not be the result of an increase this moment arm. A static biomechanical model, derived from Magnetic Resonance Imaging, can be used to assess the coaptation effect of the Middle Deltoid. The objective of this study was to analyze the impact of increasing amounts of glenoid lateralization on the moment arm but also on its coaptation effect. Methods Eight patients (72.6 ± 6.5 years) operated for Reverse Shoulder Arthroplasty were included in the study. Three-dimensional models of each shoulder were created based on imaging taken at 6 months postoperative. A least square sphere representing the prosthetic implant was added to each 3D models. A static biomechanical model was then applied to different planar portions of the Middle Deltoid (from 3D models), first without lateralization and then with simulated lateralization of 6, 9 and 12mm. This static model enables to compute a Coaptation/Elevation Ratio and to measure the Deltoid’s Moment Arm. The inter- and intra-rater agreement of the 3D models was evaluated. Results One patient was excluded due to motion during imaging. The inter- and intra-rater agreement was over 0.99. The ratio increased starting at 6 mm of lateralization (p<0.05), compared to the initial position. The moment arm was not affected by lateralization (p<0.05), except in two slices starting at 9 mm (S1 p<0.05 and S2 p<0.05). Conclusion Our hypothesis that the Middle Deltoid’s coaptation role would be greater with glenosphere lateralization was confirmed. This trend was not found in the moment arm, which showed little sensitivity to lateralization. The stabilizing effect therefore appears to stem from the coaptation role of the Middle Deltoid.

Social capital in the theory and research of LIS professionals in the light of the literature on the subject. Review of current knowledge

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Maja Dorota Wojciechowska
Keyword(s):  
Social Capital ◽  
Current Knowledge ◽  
Future Research ◽  
Content Type ◽  
Individual Social Capital ◽  
Rural Libraries ◽  
The Subject ◽  
The Moment ◽  
The Impact

Purpose The purpose of the paper is to present the latest scholarly trends in the field of social capital in libraries, to review research concepts published by LIS professionals and to suggest further research possibilities in this area. Design/methodology/approach This paper presents a review and critical analysis of literature associated with research on social capital in libraries to highlight its importance for the development of LIS and its impact on the functioning of environments linked with various types of libraries. The goal of literature analysis was to determine the current condition of research on social capital in libraries. The main trends were identified and the need for further qualitative analyses, which are missing at the moment, was confirmed. Findings It was determined that, so far, LIS professionals have focussed mainly on the role of municipal libraries in developing social capital, the problem of building trust, especially in immigrant circles and the impact of libraries on promoting a civil society. Academic libraries, rural libraries, organisational capital in libraries and individual social capital of librarians were a much less frequent subject of research. The role of libraries in developing social capital in educational (primary and secondary education) and professional (non-university professionals) circles is practically non-existent in research, and it will require in-depth studies and analyses in the coming years. Originality/value This paper constitutes a synthetic review of the latest research concepts concerning social capital in libraries. It identifies the most important research trends and areas that so far have not been explored and suggests research methods to help LIS professionals design future research in this area more effectively.

scholarly journals Is There a Link between Oropharyngeal Microbiome and Schizophrenia? A Narrative Review

2022 ◽  
Vol 23 (2) ◽  
pp. 846
Author(s):  
Stanislas Martin ◽  
Audrey Foulon ◽  
Wissam El Hage ◽  
Diane Dufour-Rainfray ◽  
Frédéric Denis
Keyword(s):  
Periodontal Disease ◽  
Research Team ◽  
Oral Microbiome ◽  
Oral Microbiota ◽  
Future Studies ◽  
The Subject ◽  
The Moment ◽  
The Impact ◽  
The Brain

The study aimed to examine the impact of the oropharyngeal microbiome in the pathophysiology of schizophrenia and to clarify whether there might be a bidirectional link between the oral microbiota and the brain in a context of dysbiosis-related neuroinflammation. We selected nine articles including three systemic reviews with several articles from the same research team. Different themes emerged, which we grouped into 5 distinct parts concerning the oropharyngeal phageome, the oropharyngeal microbiome, the salivary microbiome and periodontal disease potentially associated with schizophrenia, and the impact of drugs on the microbiome and schizophrenia. We pointed out the presence of phageoma in patients suffering from schizophrenia and that periodontal disease reinforces the role of inflammation in the pathophysiology of schizophrenia. Moreover, saliva could be an interesting substrate to characterize the different stages of schizophrenia. However, the few studies we have on the subject are limited in scope, and some of them are the work of a single team. At this stage of knowledge, it is difficult to conclude on the existence of a bidirectional link between the brain and the oral microbiome. Future studies on the subject will clarify these questions that for the moment remain unresolved.

The Impact of Reinsurance

2021 ◽  
Author(s):  
Niels Viggo Haueter
Keyword(s):  
Economic Growth ◽  
Developing Countries ◽  
Insurance Industry ◽  
Natural Catastrophes ◽  
Security Interest ◽  
Environmental Deterioration ◽  
Stabilizing Effect ◽  
The 1960S ◽  
The Impact

Reinsurance is perceived to have a stabilizing effect on the direct insurance industry and thereby on the economy overall. Yet, research into how exactly reinsurance impacts various areas is scarce. Traditionally, studying the impact of reinsurance used to be in the domain of actuaries; since the 1960s, they have tried to assess how different contract elements can provide what came to be called “optimal reinsurance.” In the 2010s, such research was intensified in developing countries with the aim to deploy reinsurance to support economic growth and security. Interest in reinsurance increased when the industry became more visible in the 1990s as the impact of natural catastrophes started being linked to a changing climate. Reinsurers emerged as spokespeople for climate-related issues, and the industry took a lead role in arguing in favor of implementing measures to reduce environmental deterioration. Reinsurers, it was argued, have a vested interest in managing the impact of natural catastrophes. This triggered discussions about the role of reinsurance overall and about how to assess its impact. In the wake of the financial crisis of 2007 and 2008, interest in reinsurance again surged, this time due to perceived systemic impacts.

The role of greater tuberosity healing in reverse shoulder arthroplasty: a finite element analysis

2020 ◽  
Vol 29 (2) ◽  
pp. 347-354 ◽  
Author(s):  
Vani J. Sabesan ◽  
Diego J.L. Lima ◽  
Yang Yang ◽  
Matthew C. Stankard ◽  
Mauricio Drummond ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shoulder Arthroplasty ◽  
Reverse Shoulder Arthroplasty ◽  
Element Analysis ◽  
Greater Tuberosity

scholarly journals Analisis Persepsi Bisnis Terhadap Persepsi Konsumen Melalui Indeks Tendensi Bisnis (ITB) dan Indeks Tendensi Konsumen (ITK) di Indonesia.

2020 ◽  
Vol 4 (2) ◽  
pp. 70-84
Author(s):  
Agung Gatra Diarga
Keyword(s):  
Global Economy ◽  
Secondary Data ◽  
Positive Influence ◽  
Consumer Perception ◽  
Global Crisis ◽  
Economic Agents ◽  
Business To Consumer ◽  
The Moment ◽  
The Impact

The condition of the global economy is greatly affected by the movements of economic agents itself. After the global crisis that happened years ago, 2018 the state of the global economy not fully recovered. In the moment the role of economic agents so influenced by the information received and how that information is processed, so that will affect the perception on an object of that information. And in the end will have an impact on decision making right or not. In this research will analyze perception on the impact of business to consumer perception shown through indicators of the business tendency index on consumer tendency index. The research was conducted using secondary data from the central bureau of statistics by focusing on a span of years the global crisis that is 2017-2019 or pre until post crisis. The method used is descriptive statistics analysis. The result of which is known that the perception business have a positive influence on consumer perception in the view through the business tendency index on consumer tendency index  

Role of preoperative PROMIS scores in predicting postoperative outcomes and likelihood of achieving MCID following reverse shoulder arthroplasty

2020 ◽  
Vol 30 (2) ◽  
pp. 154-161
Author(s):  
Sreten Franovic ◽  
Noah Kuhlmann ◽  
Collin Schlosser ◽  
Alex Pietroski ◽  
Asa Gray Buchta ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
Reverse Shoulder Arthroplasty ◽  
Postoperative Outcomes

scholarly journals Effect of critical shoulder angle, glenoid lateralization, and humeral inclination on range of movement in reverse shoulder arthroplasty

2019 ◽  
Vol 8 (8) ◽  
pp. 378-386 ◽  
Author(s):  
Alexandre Lädermann ◽  
Eileen Tay ◽  
Philippe Collin ◽  
Sébastien Piotton ◽  
Chih-Hao Chiu ◽  
...  
Keyword(s):  
Shoulder Arthroplasty ◽  
External Rotation ◽  
Reverse Shoulder Arthroplasty ◽  
Subacromial Space ◽  
Range Of Movement ◽  
Neck Shaft Angle ◽  
Critical Shoulder Angle ◽  
Flexion Extension ◽  
The Impact ◽  
Shoulder Angle

Objectives To date, no study has considered the impact of acromial morphology on shoulder range of movement (ROM). The purpose of our study was to evaluate the effects of lateralization of the centre of rotation (COR) and neck-shaft angle (NSA) on shoulder ROM after reverse shoulder arthroplasty (RSA) in patients with different scapular morphologies. Methods 3D computer models were constructed from CT scans of 12 patients with a critical shoulder angle (CSA) of 25°, 30°, 35°, and 40°. For each model, shoulder ROM was evaluated at a NSA of 135° and 145°, and lateralization of 0 mm, 5 mm, and 10 mm for seven standardized movements: glenohumeral abduction, adduction, forward flexion, extension, internal rotation with the arm at 90° of abduction, as well as external rotation with the arm at 10° and 90° of abduction. Results CSA did not seem to influence ROM in any of the models, but greater lateralization achieved greater ROM for all movements in all configurations. Internal and external rotation at 90° of abduction were impossible in most configurations, except in models with a CSA of 25°. Conclusion Postoperative ROM following RSA depends on multiple patient and surgical factors. This study, based on computer simulation, suggests that CSA has no influence on ROM after RSA, while lateralization increases ROM in all configurations. Furthermore, increasing subacromial space is important to grant sufficient rotation at 90° of abduction. In summary, increased lateralization of the COR and increased subacromial space improve ROM in all CSA configurations. Cite this article: A. Lädermann, E. Tay, P. Collin, S. Piotton, C-H Chiu, A. Michelet, C. Charbonnier. Effect of critical shoulder angle, glenoid lateralization, and humeral inclination on range of movement in reverse shoulder arthroplasty. Bone Joint Res 2019;8:378–386. DOI: 10.1302/2046-3758.88.BJR-2018-0293.R1.

Reverse shoulder arthroplasty: the role of physical therapy on the clinical outcome in the mid-term to long-term follow-up

2018 ◽  
Vol 138 (12) ◽  
pp. 1647-1652 ◽  
Author(s):  
Stephan Uschok ◽  
Sebastian Herrmann ◽  
Stephan Pauly ◽  
Carsten Perka ◽  
Stefan Greiner
Keyword(s):  
Physical Therapy ◽  
Clinical Outcome ◽  
Shoulder Arthroplasty ◽  
Reverse Shoulder Arthroplasty ◽  
Long Term Follow Up

scholarly journals The role of background music in the experience of watching YouTube videos about death and dying

2020 ◽  
Vol 6 (2) ◽  
pp. 305-319
Author(s):  
Panagiotis Pentaris ◽  
Maria Yerosimou
Keyword(s):  
Death And Dying ◽  
User Generated Content ◽  
Background Music ◽  
Future Research ◽  
Video Sharing ◽  
Youtube Videos ◽  
Preliminary Study ◽  
The Moment ◽  
The Impact

YouTube is the largest video sharing site live at the moment. It has been used to communicate a vast array of information, while it allows for user-generated content. This paper will focus on YouTube videos that communicate death, and in particular will present findings from a preliminary study undertaken by the authors considering the role that background music plays in these videos. Specifically, this study explores the experiences of the viewers of death-related YouTube videos with and without background music while it makes comparisons in relation to the impact that music has on the viewers’ emotional experiences. We conclude that background music elicits emotions and enhances feelings of sadness and sympathy in relation to the visual content of videos while recommendations for future research are made.

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