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Surgical Approaches for Total Hip Arthroplasty
Total hip arthroplasty (THA) has become one of the most reliable and patient-requested surgical interventions in all medicine. The procedure can be performed using a variety of surgical approaches, but the posterior approach, direct lateral approach, and direct anterior approach are by far the most common across the globe. This article highlights the history and technique for each of these common approaches. A review of outcomes and complications for each approach are also provided. Each approach has its own unique advantages and disadvantages, but all can be safely and successful utilized for THA. Strong, convincing, high-quality studies comparing the different approaches are lacking at this time. Surgeons are therefore recommended to choose whichever approach they are most comfortable and experienced using. Though not described here, THA can also be done using the anterolateral approach (also known as the Watson Jones approach) as well as the two-incision approach. In addition, recently, some surgeons are utilizing the so-called direct superior approach for THA. While these approaches are far less commonly utilized, they are recognized as viable alternatives to traditional approaches.
Journal Article
Systems thinking for health systems strengthening
Many developing countries are looking to scale-up what works through major systems strengthening investments. With leadership, conviction and commitment, systems thinking can facilitate and accelerate the strengthening of systems to more effectively deliver interventions to those in need and be better able to improve health in an equitable way. Systems thinking is not a panacea. Its application does not mean that resolving problems and weaknesses will come easily or naturally or without overcoming the inertia of the established way of doing things. But it will identify, with more precision, where some of the true blockages and challenges lie. It will help to: 1) explore these problems from a systems perspective; 2) show potentials of solutions that work across sub-systems; 3) promote dynamic networks of diverse stakeholders; 4) inspire learning; and 5) foster more system-wide planning, evaluation and research. And it will increase the likelihood that health system strengthening investments and interventions will be effective. The more often and more comprehensively the actors and components of the system can talk to each other from within a common framework --communicating, sharing, problem-solving - the better chance any initiative to strengthen health systems has. Real progress will undoubtedly require time, significant change, and momentum to build capacity across the system. However, the change is necessary - and needed now. This report therefore speaks to health system stewards, researchers and funders and maps out a set of strategies and activities to harness these approaches, to link them to these emerging opportunities and to assist systems thinking to become the norm in design and evaluation of interventions in health systems. But, the final message is to the funders of health system strengthening and health systems research who will
need to recognize the potential in these opportunities, be prepared to take risks in investing in such innovations, and play an active role in both driving and following this agenda towards more systemic and evidence-informed health development.
eBook
Posterior approaches to the acetabulum
Posterior approaches, particularly the Kocher-Langenbeck approach, remain the workhorses in the treatment of acetabular fractures. Various modifications have been developed, each offering specific advantages depending on surgical requirements. The modified Gibson approach, for example, is suggested to provide enhanced visualization of the superior acetabulum, although recent cadaveric studies have not consistently substantiated this benefit. The Ganz approach, which involves bigastric trochanteric osteotomy with safe surgical hip dislocation, is particularly advantageous for managing complex and comminuted posterior acetabular fractures, as it enables a 360° view of the acetabulum and femoral head. Overall, posterior approaches are associated with low rates of complications, with heterotopic ossification being the most prevalent. The choice of surgical approach and patient positioning should be guided by the surgeon’s preference and expertise, tailored to the specific fracture pattern and patient characteristics.
Journal Article
Sociological theory and the capability approach
\"Sociological Theory and Capability Approach connects normative strands of sociological theory to the fusion of ethics and economics proposed by Amartya Sen's and Martha Nussbaum's capability approach. Spanning classical (Hegel, Marx, Durkheim, Scheler, Weber) and contemporary debates (Parsons, Giddens, Luhmann) it identifies areas that bridge the current gap between sociology and capability approach. It thus builds on explanatory and normative concerns shared by both traditions. Engaging readers from sociology and capability approach, Spiros Gangas suggests that the proposed dialogue should be layered along the main areas of value theory, economy and society, extending this inquiry into the normative meaning attached to being human. To this end, the book reconstructs the notion of agency along the tracks of Nussbaum's central human capabilities, considering also alienation and the sociology of emotions. It concludes by addressing the capability approach through the lens of social institutions before it takes up the challenge of ideological fundamentalism and how it can be effectively confronted by capability approach. This original book provides a fresh perspective on capability approach as it embeds it in the rich pool of sociological theory's accomplishments. As an exercise in theoretical and normative convergence, it will be required reading for academics and students in social theory, cultural theory, philosophy and human development studies\"-- Provided by publisher.
Book
Mobile robots path planning and mobile multirobots control: A review
Mobile robots and multimobile robotic system usage for task achievement have been an emerging research area since the last decades. This article presents a review about mobile robot navigation problem and multimobile robotic systems control. The main focus is made on path planning strategies and algorithms in static and dynamic environments. A classification on mobile robots path planning has been defined in the literature and divided to classical and heuristic approaches. Each of them has its own advantages and drawbacks. On the other hand, the control of multimobile robots is presented and the control approaches for a fleet of robots are presented. Scientists found that using more than one robot as opposed to a single one presents many advantages when considering redundant task, dangerous tasks, or a task that scales up or down in time or that requires flexibility. They have defined three main approaches of multiple robots control: behavior-based approach, leader–follower approach, and virtual structure approach. This article addresses these approaches and provides examples from the literature.
Journal Article
The Language Experience Approach and the Science of Literacy Instruction
This book considers Russell Stauffer's Language Experience Approach (LEA), an approach that must be judged by its impact on student learning and not on the age of conception. The nature of wholistic teaching in early childhood and beyond is explored, and developmental maturation for the different language tasks are explained.
eBook