Download or read book Trabecular and Cortical Bone written by Varsha Subramanium and published by Nova Science Publishers. This book was released on 2013-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the authors present topical research in the study of the morphology, biomechanics and clinical implications of trabecular and cortical bone. Topics discussed include trabecular bone biomechanics and morphology; cortical bone as an enduring depot of bone-seeking contaminants and the evaluation of cortical bone resportion rate on the basis of a contaminant (90SR) measurement in humans; evaluation of apparent stress and strain at fracture of human trabecular bone under quasi-static compression load using micro-CT finite elements simulation; application of computational modelling to predict the effect of exercise on whole bone strength; advancements in cortical bone imaging; morphology of the pelvis (acetabulum) and femur; the release kinetics of bone morphogenetic proteins from demineralised cortical bone grafts; and preservation of cortical bone in oral and maxillofacial surgery procedures.
Download or read book Image Analysis for Trabecular Bone Properties on Cone Beam CT Data written by Eva Klintström and published by Linköping University Electronic Press. This book was released on 2017-10-20 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trabecular bone structure as well as bone mineral density (BMD) have impact on the biomechanical competence of bone. In osteoporosis-related fractures, there have been shown to exist disconnections in the trabecular network as well as low bone mineral density. Imaging of bone parameters is therefore of importance in detecting osteoporosis. One available imaging device is cone-beam computed tomography (CBCT). This device is often used in pre-operative imaging of dental implants, for which the trabecular network also has great importance. Fourteen or 15 trabecular bone specimens from the radius were imaged for conducting this in vitro project. The imaging data from one dual-energy X-ray absorptiometry (DXA), two multi-slice computed tomography (MSCT), one high-resolution peripheral quantitative computed tomography (HR-pQCT) and four CBCT devices were segmented using an in-house developed code based on homogeneity thresholding. Seven trabecular microarchitecture parameters, as well as two trabecular bone stiffness parameters, were computed from the segmented data. Measurements from micro-computed tomography (micro-CT) data of the same bone specimens were regarded as gold standard. Correlations between MSCT and micro-CT data showed great variations, depending on device, imaging parameters and between the bone parameters. Only the bone-volume fraction (BV/TV) parameter was stable with strong correlations. Regarding both HR-pQCT and CBCT, the correlations to micro-CT were strong for bone structure parameters as well as bone stiffness parameters. The CBCT device 3D Accuitomo showed the strongest correlations, but overestimated BV/TV more than three times compared to micro-CT. The imaging protocol most often used in clinical imaging practice at our clinic demonstrated strong correlations as well as low radiation dose. CBCT data of trabecular bone can be used for analysing trabecular bone properties, like bone microstructure and bone biomechanics, showing strong correlations to the reference method of micro-CT. The results depend on choice of CBCT device as well as segmentation method used. The in-house developed code based on homogeneity thresholding is appropriate for CBCT data. The overestimations of BV/TV must be considered when estimating bone properties in future clinical dental implant and osteoporosis research.
Download or read book Bones written by John D. Currey and published by Princeton University Press. This book was released on 2013-10-31 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive and accessible overview of what is known about the structure and mechanics of bone, bones, and teeth. In it, John Currey incorporates critical new concepts and findings from the two decades of research since the publication of his highly regarded The Mechanical Adaptations of Bones. Crucially, Currey shows how bone structure and bone's mechanical properties are intimately bound up with each other and how the mechanical properties of the material interact with the structure of whole bones to produce an adapted structure. For bone tissue, the book discusses stiffness, strength, viscoelasticity, fatigue, and fracture mechanics properties. For whole bones, subjects dealt with include buckling, the optimum hollowness of long bones, impact fracture, and properties of cancellous bone. The effects of mineralization on stiffness and toughness and the role of microcracking in the fracture process receive particular attention. As a zoologist, Currey views bone and bones as solutions to the design problems that vertebrates have faced during their evolution and throughout the book considers what bones have been adapted to do. He covers the full range of bones and bony tissues, as well as dentin and enamel, and uses both human and non-human examples. Copiously illustrated, engagingly written, and assuming little in the way of prior knowledge or mathematical background, Bones is both an ideal introduction to the field and also a reference sure to be frequently consulted by practicing researchers.
Download or read book Noninvasive Assessment of Trabecular Bone Architecture and The Competence of Bone written by Sharmila Majumdar and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of bone microarchitecture is flourishing because of a recent shift in perspective that has taken researchers beyond utilizing bone mineral density as the primary source of information about certain matters related to bone. In the area of osteoporosis and skeletal changes, bone mineral density (BMD) is widely used for screening, monitoring and assessing therapeutic efficacy, and yet, it is currently accepted that BMD does not fully explain the pathogenesis of osteoporosis, the process of aging, nor mechanisms of therapeutic efficacy. In this context, the study of trabecular microarchitecture has much to contribute. The emerging field of trabecular microarchitecture, however, is diverse, inter-disciplinary and encompasses many different imaging modalities. This volume represents a compilation of papers from world-renowned researchers, reflecting the most current research in the area of noninvasive assessment of trabecular microcarchitecture. This varied research applies sophisticated imaging tools to questions of bone biomechanics at both the basic science and clinical levels. The authors' works range from review articles and research articles to works in progress. Taken together, they offer a foray into the "state of the art" of investigating bone at its most basic levels.
Download or read book Musculoskeletal Research and Basic Science written by Feza Korkusuz and published by Springer. This book was released on 2015-11-26 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strong roots in basic science and research enhance clinical practice. This book is a rich source of information for basic scientists and translational researchers who focus on musculoskeletal tissues and for orthopedic and trauma surgeons seeking relevant up-to-date information on molecular biology and the mechanics of musculoskeletal tissue repair and regeneration. The book opens by discussing biomaterials and biomechanics, with detailed attention to the biologic response to implants and biomaterials and to the surface modification of implants, an important emerging research field. Finite element analysis, mechanical testing standards and gait analysis are covered. All these chapters are strongly connected to clinical applications. After a section on imaging techniques, musculoskeletal tissues and their functions are addressed, the coverage including, for example, stem cells, molecules important for growth and repair, regeneration of cartilage, tendons, ligaments, and peripheral nerves, and the genetic basis of orthopedic diseases. State-of-the-art applications such as platellet rich plasma were included. Imaging is a daily practice of scientists and medical doctors. Recent advancements in ultrasonography, computerized tomography, magnetic resonance, bone mineral density measurements using dual energy X-ray absorptiometry, and scintigraphy was covered following conventional radiography basics. Further extensive sections are devoted to pathology, oncogenesis and tumors, and pharmacology. Structure is always related with function. Surgical anatomy was therefore covered extensively in the last section.
Download or read book Bone Research in Biomechanics written by G. Lowet and published by IOS Press. This book was released on 1997 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the structure of bone, and its consequences for the mechanical behaviour of the bone structure. The first part of this book focuses on the development of models to predict the adaptation of bone due to changes on the mechanical loading situation (such as provoked by an implant). But far more important than the computer power presently available, the incorporation of knowledge on the biological processes have led to new kinds of models. Next to the development of models itself, the issue of model validation though comparison with clinical data is a main issue addressed in the papers of this symposium. The second part, dealing with the relationship between bone architecture and competence of bone, focuses on the morphology of trabecular bone structure. This work is mainly carried out in the context of research on osteoporosis, and look for the relation between bone structure and fracture risk. The last part is devoted to ultrasound research in bone biomechanics. Several methods have been described for the in vitro and in vivo measurement of ultrasound velocity and attenuation, both on cortical and on trabecular bone. The reader will not only discover the state-of-the-art when reading though this book. This book can give a taste of the fascinating perspectives the research in bone biomechanics still have to offer, even after more than 100 years.
Download or read book Cancellous Bone written by Ardiyansyah Syahrom and published by Springer. This book was released on 2017-08-05 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive mechanobiological insights into bone, including the microstructure of cancellous bone and its realistic loading in the human body. This approach considers different types of loads, i.e. static and dynamic, and the response under uniaxial and multiaxial loading conditions. The book also reviews additional factors influencing biomechanical properties, e.g. fluid transport. In closing, the mechanobiological approach is discussed in the context of the finite element method.
Download or read book Radiology of Osteoporosis written by Stephan Grampp and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the aging population in the Western world, osteoporosis has become a major problem which is of interest to several medical disciplines: not only radiologists but also gynecologists, endocrinologists, rheumatologists, and orthopedic surgeons are involved in the management of this widespread condition. Functional imaging is becoming rapidly an important area of diagnostic radiology. Imaging of osteoporosis is another application of this recent addition to the armory of radiology. It is important that radiologists should be fully aware of the range of diagnostic modalities-conventional radiologic methods, dual X-ray absorptiometry, quantitative computed tomography, quantitative ultrasound, magnetic resonance imaging, etc. -that are now available for the diagnosis and the follow-up of osteoporosis, and know how to apply these sophisticated methods in daily clinical practice. Dr. S. Grampp is a radiologist with a longstanding interest in osteoporosis, and his previous publications on this condition are internationally known. He has been very successful in engaging several outstandingly qualified experts to contribute to the indi vidual chapters of this superb book, which provides a omprehensive c overview of our current knowledge of osteoporosis. I am confident that this volume will meet with great interest from radiologists and all other clinicians involved in the care of patients with osteoporosis and will encounter the same success as many previous volumes in this series.
Download or read book Principles of Bone Biology written by John P. Bilezikian and published by Academic Press. This book was released on 2008-09-29 with total page 2074 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Bone Biology provides the most comprehensive, authoritative reference on the study of bone biology and related diseases. It is the essential resource for anyone involved in the study of bone biology. Bone research in recent years has generated enormous attention, mainly because of the broad public health implications of osteoporosis and related bone disorders. Provides a "one-stop" shop. There is no need to search through many research journals or books to glean the information one wants...it is all in one source written by the experts in the field The essential resource for anyone involved in the study of bones and bone diseases Takes the reader from the basic elements of fundamental research to the most sophisticated concepts in therapeutics Readers can easily search and locate information quickly as it will be online with this new edition
Download or read book Bioinspired Structures and Design written by Wole Soboyejo and published by Cambridge University Press. This book was released on 2020-09-17 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master simple to advanced biomaterials and structures with this essential text. Featuring topics ranging from bionanoengineered materials to bio-inspired structures for spacecraft and bio-inspired robots, and covering issues such as motility, sensing, control and morphology, this highly illustrated text walks the reader through key scientific and practical engineering principles, discussing properties, applications and design. Presenting case studies for the design of materials and structures at the nano, micro, meso and macro-scales, and written by some of the leading experts on the subject, this is the ideal introduction to this emerging field for students in engineering and science as well as researchers.
Download or read book Multi axial Fatigue of Trabecular Bone with Respect to Normal Walking written by Mohammad Mostakhdemin and published by Springer. This book was released on 2015-06-10 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the analysis and treatment of osteoporotic bone based on drug administration, tracking fatigue behavior and taking into consideration the mechanical interaction of implants with trabecular bone. Weak trabeculae are one of the most important clinical features that need to be addressed in order to prevent hip joint fractures.
Download or read book Bone Repair Biomaterials written by Kendell Pawelec and published by Woodhead Publishing. This book was released on 2018-11-29 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bone Repair Biomaterials: Regeneration and Clinical Applications, Second Edition, provides comprehensive reviews on materials science, engineering principles and recent advances. Sections review the fundamentals of bone repair and regeneration, discuss the science and properties of biomaterials used for bone repair, including metals, ceramics, polymers and composites, and discuss clinical applications and considerations, with chapters on such topics as orthopedic surgery, tissue engineering, implant retrieval, and ethics of bone repair biomaterials. This second edition includes more chapters on relevant biomaterials and a greatly expanded section on clinical applications, including bone repair applications in dental surgery, spinal surgery, and maxilo-facial and skull surgery. In addition, the book features coverage of long-term performance and failure of orthopedic devices. It will be an invaluable resource for researchers, scientists and clinicians concerned with the repair and restoration of bone. Provides a comprehensive review of the materials science, engineering principles and recent advances in this important area Presents new chapters on Surface coating of titanium, using bone repair materials in dental, spinal and maxilo-facial and skull surgery, and advanced manufacturing/3D printing Reviews the fundamentals of bone repair and regeneration, addressing social, economic and clinical challenges Examines the properties of biomaterials used for bone repair, with specific chapters assessing metals, ceramics, polymers and composites
Download or read book On the Rate dependent Constitutive Response of Cortical and Trabecular Bone written by Timothy Paul Mahal Johnson and published by . This book was released on 2010 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The widespread use of improvised explosive devices (IEDs) against American and coalition forces in the ongoing Iraqi and Afghani conflicts has caused a dramatic increase in the number of traumatic brain injury (TBI) cases seen in recent years. The skull acts as the first and primary line of defense for the brain. Researching this structure's protective capabilities and shortcomings is therefore critical to 1) understanding how blunt impact loads and blast waves are propagated through the skull and transmitted into the brain, and 2) improving and evaluating future combat protection systems. This doctoral study is aimed at mechanically characterizing and modeling the two major constituents of the skull: cortical and trabecular bone. The mechanical behavior of these two materials over a wide range of strain rates is identified through both a review of the existing literature data and our own experimental investigations. For the behavior of compact bone two separate viscoelastic rate-sensitivity regimes are identified and modeled with a Maxwell-Weichert model containing one linear elastic and two linear viscoelastic branches in parallel. The rate-dependent plasticity of the material is further shown to obey a simple power law relationship and the overall material behavior is captured in a generalized three-dimensional viscoelastic, viscoplastic constitutive model formulation. For validation, the three-dimensional constitutive model is implemented as a subroutine within a commercial nonlinear finite element program. Given the similar composition of both cortical bone and the solid portion of trabecular bone, the compact bone constitutive model is subsequently employed in modeling the trabeculae of cancellous bone within two complementary microstructural frameworks. The first approach utilized is to create three-dimensional solid bone models of trabecular architecture directly from micro computed tomography (CT) scans of cancellous bone biopsy samples. The original samples from which these micro CT scans were obtained are then tested experimentally and the resulting stress-strain curves are found to show excellent agreement with the micromechanical model predictions. Successful simulation of specimen loading was found to be contingent upon extracting the trabecular structure from micro CT data in such a way that matched the relative density of the resulting specimen mesh to the experimentally recorded value. Analysis of both the experimental and simulation results further demonstrates that 1) local distributions in strut relative density are highly influential in the determining the compressive strength of trabecular bone and 2) the formation of macroscopic, multi-strut shear bands is responsible for the initial plateau and post-yield softening exhibited by trabecular bone in uniaxial compression. 3 The second microstructural approach employed is to model the trabecular network with an idealized representative volume element (RVE) and apply periodic boundary conditions. This latter approach allows for rapid investigation of the effects of relative density and strain rate in determining trabecular bone's mechanical properties. Specifically, Young's modulus is found to vary in a nearly quadratic manner with relative density and compressive strength is shown to have a power law relationship to relative density with an exponent of 1.5. In addition, compressive strength is shown to have a power law dependence upon strain rate with an exponent of 0.055. These relationships and the magnitude of the values predicted are all found to closely match the experimental trends and values reported in the literature.
Download or read book The Aging Skeleton written by Clifford Rosen and published by Elsevier. This book was released on 1999-08-19 with total page 667 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Aging Skeleton is a comprehensive and timely book on all aspects of the skeleton as it ages, including basic mechanisms and pathways as well as pathobiology. Chapters cover general aspects and models of aging, determinants and maintenance of peak bone mass, mechanisms of age-related bone loss, quantifiable manifestations of age-related bone loss, fractures, and therapeutics. Covers all aspects of the aging skeleton in one comprehensive volume Looks at the influence of genetics, nutrition, environment, hormones, and other factors on bone mass Provides a thorough discussion of fractures, one of the major consequences of the aging skeleton Reviews current therapeutic approaches and methods Written by internationally renowned authors and edited by leaders in the field Is the only book available on this subject
Download or read book An Illustrated Guide to Oral Histology written by Imran Farooq and published by John Wiley & Sons. This book was released on 2021-05-17 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Illustrated Guide to Oral Histology Learn more about the histological presentation of diseased and normal oral tissues with this high definition illustrated dental reference An Illustrated Guide to Oral Histology delivers a collection of high-definition histological and pathological images, presenting both diseased and normal oral tissues. The book provides over 200 high-magnification histomicrographs of oral tissues, as well as definitions and explanations of key identifying histological and pathological features of oral tissues. Readers will also benefit from explanations of the clinical significance of particular features, numerous images of ground sections, haemotoxylin- and eosin-stained sections, and electron images. It also includes core topics such as: An introduction to tooth development, including the bud, cap, early bell, and late bell stages A thorough exploration of enamel, dentin, cementum and dental pulp A discussion of the periodontal ligament, including alveolar crest fibers, horizontal, oblique, apical, and inter-radicular fibers, transseptal fibers, and gingival fibers A guide to alveolar bone, oral mucosa, and salivary glands Perfect for postgraduate dental students, An Illustrated Guide to Oral Histology will also be useful to undergraduate dental students, and those looking to improve their understanding of the microscopic structure of dental tissues and their pathologies.
Download or read book Bone Health and Osteoporosis written by United States Public Health Service and published by . This book was released on 2004-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first-ever Surgeon General's Report on bone health and osteoporosis illustrates the large burden that bone disease places on our Nation and its citizens. Like other chronic diseases that disproportionately affect the elderly, the prevalence of bone disease and fractures is projected to increase markedly as the population ages. If these predictions come true, bone disease and fractures will have a tremendous negative impact on the future well-being of Americans. But as this report makes clear, they need not come true: by working together we can change the picture of aging in America. Osteoporosis, fractures, and other chronic diseases no longer should be thought of as an inevitable part of growing old. By focusing on prevention and lifestyle changes, including physical activity and nutrition, as well as early diagnosis and appropriate treatment, Americans can avoid much of the damaging impact of bone disease and other chronic diseases. This Surgeon General's Report brings together for the first time the scientific evidence related to the prevention, assessment, diagnosis, and treatment of bone disease. More importantly, it provides a framework for moving forward. The report will be another effective tool in educating Americans about how they can promote bone health throughout their lives. This first-ever Surgeon General's Report on bone health and osteoporosis provides much needed information on bone health, an often overlooked aspect of physical health. This report follows in the tradition of previous Surgeon Generals' reports by identifying the relevant scientific data, rigorously evaluating and summarizing the evidence, and determining conclusions.
Download or read book Bone Histomorphometry written by Erik Fink Eriksen and published by Lippincott Williams & Wilkins. This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
