Experimental and Computational Analysis of Dynamic Loading for Bone Formation

Experimental and Computational Analysis of Dynamic Loading for Bone Formation
Author: Todd Randall Dodge
Publisher:
Total Pages: 170
Release: 2013
Genre: Biomechanics
ISBN:

Bone is a dynamic tissue that is constantly remodeling to repair damage and strengthen regions exposed to loads during everyday activities. However, certain conditions, including long-term unloading of the skeleton, hormonal imbalances, and aging can disrupt the normal bone remodeling cycle and lead to low bone mass and osteoporosis, increasing risk of fracture. While numerous treatments for low bone mass have been devised, dynamic mechanical loading modalities, such as axial loading of long bones and lateral loading of joints, have recently been examined as potential methods of stimulating bone formation. The effectiveness of mechanical loading in strengthening bone is dependent both on the structural and geometric characteristics of the bone and the properties of the applied load. For instance, curvature in the structure of a bone causes bending and increased strain in response to an axial load, which may contribute to increased bone formation. In addition, frequency of the applied load has been determined to impact the degree of new bone formation; however, the mechanism behind this relationship remains unknown. In this thesis, the application of mechanical loading to treat osteoporotic conditions is examined and two questions are addressed: What role does the structural geometry of bone play in the mechanical damping of forces applied during loading? Does mechanical resonance enhance geometric effects, leading to localized areas of elevated bone formation dependent on loading frequency? Curvature in the structure of bone was hypothesized to enhance its damping ability and lead to increased bone formation through bending. In addition, loading at frequencies near the resonant frequencies of bone was predicted to cause increased bone formation, specifically in areas that experienced high principal strains due to localized displacements during resonant vibration. To test the hypothesis, mechanical loading experiments and simulations using finite element (FE) analysis were conducted to characterize the dynamic properties of bone. Results demonstrate that while surrounding joints contribute to the greatest portion of the damping capacity of the lower limb, bone absorbs a significant amount of energy through curvature-driven bending. In addition, results show that enhanced mechanical responses at loading frequencies near the resonant frequencies of bone may lead to increased bone formation in areas that experience the greatest principal strain during vibration. These findings demonstrate the potential therapeutic effects of mechanical loading in preventing costly osteoporotic fractures, and explore characteristics of bone that may lead to optimization of mechanical loading techniques. Further investigation of biomechanical properties of bone may lead to the prescribing of personalized mechanical loading treatments to treat osteoporotic diseases.

The Computational Mechanics of Bone Tissue

The Computational Mechanics of Bone Tissue
Author: Jorge Belinha
Publisher: Springer Nature
Total Pages: 249
Release: 2020-02-11
Genre: Science
ISBN: 3030375412

This book offers a timely snapshot of computational methods applied to the study of bone tissue. The bone, a living tissue undergoing constant changes, responds to chemical and mechanical stimuli in order to maximize its mechanical performance. Merging perspectives from the biomedical and the engineering science fields, the book offers some insights into the overall behavior of this complex biological tissue. It covers three main areas: biological characterization of bone tissue, bone remodeling algorithms, and numerical simulation of bone tissue and adjacent structures. Written by clinicians and researchers, and including both review chapters and original research, the book offers an overview of the state-of-the-art in computational mechanics of bone tissue, as well as a good balance of biological and engineering methods for bone tissue analysis. An up-to-date resource for mechanical and biomedical engineers seeking new ideas, it also promotes interdisciplinary collaborations to advance research in the field.

Multiscale Mechanobiology of Bone Remodeling and Adaptation

Multiscale Mechanobiology of Bone Remodeling and Adaptation
Author: Peter Pivonka
Publisher: Springer
Total Pages: 295
Release: 2017-06-20
Genre: Science
ISBN: 3319588451

The book presents state-of-the-art developments in multiscale modeling and latest experimental data on multiscale mechanobiology of bone remodeling and adaptation including fracture healing applications. The multiscale models include musculoskeletal models describing bone-muscle interactions during daily activities such as walking or running, micromechanical models for estimation of bone mechanical properties, bone remodeling and adaptation models, cellular models describing the complex bone-cell interactions taking into account biochemical and biomechanical regulatory factors. Also subcellular processes are covered including arrangement of actin filaments due to mechanical loading and change of receptor configurations.

Basic Engineering for Medics and Biologists

Basic Engineering for Medics and Biologists
Author: T. Clive Lee
Publisher: IOS Press
Total Pages: 380
Release: 2010
Genre: Medical
ISBN: 1607505266

Developments in bioengineering and medical technology have led to spectacular progress in clinical medicine. As a result, increased numbers of courses are available in the area of bioengineering and clinical technology. These often include modules dealing with basic biological and medical sciences, aimed at those taking up these studies, who have a background in engineering. To date, relatively few participants from medicine have taken up courses in biomedical engineering, to the detriment of scientific exchange between engineers and medics. The European Society for Engineering and Medicine (ESEM) aims to bridge the gap between engineering and medicine and biology. It promotes cultural and scientific exchanges between the engineering and the medical/biological fields. This primer consists of a series of First Step chapters in engineering and is principally presented for those with a medical or biology background who intend to start a MSc programme in biomedical engineering, and for medics or biologists who wish to better understand a particular technology. It will also serve as a reference for biomedical engineers. Written by engineers and medics who are leaders in their field, it covers the basic engineering principles underpinning: biomechanics, bioelectronics, medical informatics, biomaterials, tissue engineering, bioimaging and rehabilitation engineering. It also includes clinically relevant examples.

Encyclopedia of Bone Biology

Encyclopedia of Bone Biology
Author:
Publisher: Academic Press
Total Pages: 2390
Release: 2020-06-26
Genre: Science
ISBN: 0128140828

Encyclopedia of Bone Biology, Three Volume Set covers hot topics from within the rapidly expanding field of bone biology and skeletal research, enabling a complete understanding of both bone physiology and its relation to other organs and pathophysiology. This encyclopedia will serve as a vital resource for those involved in bone research, research in other fields that cross link with bone, such as metabolism and immunology, and physicians who treat bone diseases. Each article provides a comprehensive overview of the selected topic to inform a broad spectrum of readers from advanced undergraduate students to research professionals. Chapters also explore the latest advances and hot topics that have emerged in recent years, including the Hematopoietic Niche and Nuclear Receptors. In the electronic edition, each chapter will include hyperlinked references and further readings as well as cross-references to related articles. Incorporates perspectives from experts working within the domains of biomedicine, including physiology, pathobiology, pharmacology, immunology, endocrinology, orthopedics and metabolism Provides an authoritative introduction for non-specialists and readers from undergraduate level upwards, as well as up-to-date foundational content for those familiar with the field Includes multimedia features, cross-references and color images/videos

Orthopaedic Biomechanics

Orthopaedic Biomechanics
Author: Beth A. Winkelstein
Publisher: CRC Press
Total Pages: 659
Release: 2012-12-18
Genre: Medical
ISBN: 1439860939

Given the strong current attention of orthopaedic, biomechanical, and biomedical engineering research on translational capabilities for the diagnosis, prevention, and treatment of clinical disease states, the need for reviews of the state-of-art and current needs in orthopaedics is very timely. Orthopaedic Biomechanics provides an in-depth review of the current knowledge of orthopaedic biomechanics across all tissues in the musculoskeletal system, at all size scales, and with direct relevance to engineering and clinical applications. Discussing the relationship between mechanical loading, function, and biological performance, it first reviews basic structure-function relationships for most major orthopedic tissue types followed by the most-relevant structures of the body. It then addresses multiscale modeling and biologic considerations. It concludes with a look at applications of biomechanics, focusing on recent advances in theory, technology and applied engineering approaches. With contributions from leaders in the field, the book presents state-of-the-art findings, techniques, and perspectives. Much of orthopaedic, biomechanical, and biomedical engineering research is directed at the translational capabilities for the "real world". Addressing this from the perspective of diagnostics, prevention, and treatment in orthopaedic biomechanics, the book supplies novel perspectives for the interdisciplinary approaches required to translate orthopaedic biomechanics to today’s real world.

Regenerative Medicine and Tissue Engineering

Regenerative Medicine and Tissue Engineering
Author: Daniel Eberli
Publisher: BoD – Books on Demand
Total Pages: 606
Release: 2011-08-29
Genre: Technology & Engineering
ISBN: 9533076631

Tissue Engineering may offer new treatment alternatives for organ replacement or repair deteriorated organs. Among the clinical applications of Tissue Engineering are the production of artificial skin for burn patients, tissue engineered trachea, cartilage for knee-replacement procedures, urinary bladder replacement, urethra substitutes and cellular therapies for the treatment of urinary incontinence. The Tissue Engineering approach has major advantages over traditional organ transplantation and circumvents the problem of organ shortage. Tissues reconstructed from readily available biopsy material induce only minimal or no immunogenicity when reimplanted in the patient. This book is aimed at anyone interested in the application of Tissue Engineering in different organ systems. It offers insights into a wide variety of strategies applying the principles of Tissue Engineering to tissue and organ regeneration.

Marcus and Feldman's Osteoporosis

Marcus and Feldman's Osteoporosis
Author: David W. Dempster
Publisher: Academic Press
Total Pages: 1950
Release: 2020-10-08
Genre: Science
ISBN: 0128130741

Marcus and Feldman's Osteoporosis, Fifth Edition, is the most comprehensive, authoritative reference on this disease. Led by a new editorial team, this fifth edition offers critical information on reproductive and hormonal risk factors, new therapeutics, ethnicity, nutrition, therapeutics, management and economics, comprising a tremendous wealth of knowledge in a single source not found elsewhere. Written by renowned experts in the field, this two-volume reference is a must-have for biomedical researchers, research clinicians, fellows, academic and medical libraries, and any company involved in osteoporosis drug research and development. Summarizes the latest research in bone biology and translational applications in a range of new therapeutic agents, including essential updates on therapeutic uses of calcium, vitamin D, SERMS, bisphosphonates, parathyroid hormone, and new therapeutic agents Recognizes the critical importance of new signaling pathways for bone health, including Wnt, OPG and RANK, of interest to both researchers who study bone biology and clinicians who treat osteoporosis Offers new insights into osteoporosis associated with menopause, pre-menopause, chronic kidney disease, diabetes, HIV and other immune disorders