Download or read book FEM Analysis of the Human Knee Joint written by Zahra Trad and published by Springer. This book was released on 2018-02-13 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, numerous scientific investigations have studied the anatomical, biomechanical and functional role of structures involved in the human knee joint. The Finite Element Method (FEM) has been seen as an interesting tool to study and simulate biosystems. It has been extensively used to analyse the knee joint and various types of knee diseases and rehabilitation procedures such as the High Tibial Osteotomy (HTO). This work presents a review on FEM analysis of the human knee joint and HTO knee surgery, and discusses how adequate this computational tool is for this type of biomedical applications. Hence, various studies addressing the knee joint based on Finite Element Analysis (FEA) are reviewed, and an overview of clinical and biomechanical studies on the optimization of the correction angle of the postoperative knee surgery is provided.
Download or read book Finite Element Nonlinear Dynamic Response Analysis of the Human Knee Joint written by Terry Wayne Pfeiler and published by . This book was released on 2004 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Model Optimisation and Finite Element Analysis of a Human Knee Joint written by Niels Vankrunkelsven and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to certain deviations of the knee anatomy, the cartilage, the ligaments or patella, some knees are less efficient to absorb shocks and transfer forces. This means the knees will wear out faster, which may result in premature necessity for knee prosthesis. The cartilage is a tissue which does not have blood vessels. As a result, the natural regeneration of the tissue is very limited. This thesis sheds light on the most common deviations of the knee anatomy. The different models are processed and simulated to examine the influence of the knee anatomy on stress and pressure in the knee joint. Patient 1 is a male with a common knee. Patient 2 is a male with a small medial condyle of the femoral cartilage. Patient 3 is a male with a large medial condyle of the femoral cartilage. Due to ethical principles it is not possible to test the influences of the knee anatomy on a living patient. Tests can be performed on cadaver knees. The tests have to be done as soon as possible after the death of the donor. Another problem is that everyone has different knees, like fingerprints they are unique. Assembling a database containing all morphological deviations is impossible. Consequently, a cooperation with engineers is started in order to simulate and examine the knee models. The aim of the present thesis is to examine the influences of the deviations of the knee anatomy before and after a meniscectomy. Using Finite Element Analysis we examine the stress and pressure points in a human knee joint. Another aim of the present paper is to develop a procedure to optimise the model for a Finite Element Analysis. We succeeded in developing an optimisation procedure. This procedure can be used to optimise any scan for a Finite Element Analysis, which was not possible with most of the existing procedures. The developed procedure can be used in any field of research in which model optimisation of a 3D object is used. Most numerical model studies in the field of biomechanics have been focusing on stress analysis of a common knee. Medical experience, however, suggests that most knee complaints arise with divergent knees. Issues of the knee joint can be predicted and anticipated in an early stage by using Finite Element Analyses.
Download or read book Finite Element Simulation of the Human Knee Joint in ABAQUS explicit Using Dynamic Kinematic Inputs written by Himabindu Bodduna and published by . This book was released on 2009 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to develop a dynamic three-dimensional subject specific computational knee model by using finite element method and validate the finite element model using a validated multi-body model developed in MSC - ADAMS. The geometric input data required to create subject specific model was obtained from Magnetic Resonance Imaging of the specimen knee. The kinematic input data was obtained from simulation of the knee in a dynamic knee simulator. The three dimensional knee model was created using MR images of specimen knee. Hexahedral element meshing was performed for the construction of finite element model and ABAQUS is used for analysis purpose. Various studies were performed to identify the effects of the ABAQUS input parameters on the accuracy of the results. The finite element (FE) model was then simulated for the kinematic input obtained from a ten second squat cycle and output values for reaction force in the fixed part were recorded. The validation of FR model was conducted by comparing the results with the validated ADAMS model. Finally future improvements are suggested.
Download or read book Finite Element Analysis on Human Knee written by Nor Akmal Halim and published by . This book was released on 2013 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three dimensional model of human knee were developed to clarify the causes of knee joint injuries such as osteoarthritis, bursitis, and ligament tears. The model developed allowed the simulation by the performance of Finite Element Analysis (FEA) of different angles and different forces. The purpose of this study is to evaluate the result of kneeling 60 degree, kneeling 90 degree, and squatting to the knee joint with and without kneepad. However, this study is focused for construction worker such as mining worker. This study was simulated by using Autodesk Simulation Multiphysics to solve the finite element analysis. There are several crucial points to the proper application of numerical method such as the geometry, material properties, and boundary condition must be created to solve the finite element analysis that must have in finite element method. The force applied is at the area patella with the value of 303N, 603 N, and 903 N. The femur bone, tibia bone, and patella are assumed as rigid body. From the result the effect of kneeling 90 degree, kneeling 120 degree flexion, and squatting to the patella., the maximum stress on patella of 90 degree flexion is higher because have larger contact surface area as the knee was bent than 60 degree flexion and 120 degree flexion. For stress vs. deformation for cartilage, the position of 90 degree flexion give the higher stress and deformation as the stress on patella was high the stress to the cartilage became higher the contact stress of patella occur at the superior half of the patella and an area of the femoral groove just above the notch that means the contact stress of patella to cartilage 90 degree flexion was larger than 60 degree and 120 degree flexion. As for ligaments, at 90 degree flexion,the higher stress occur at ACL for without and with kneepad with the value 0.507 MPa and 0.0667 MPa with the percentage of absorption to the kneepad is 86%, followed by PCL 98.5 %. MCL is 99.4%, and LCL 98.5 %. From the result, it is true that the most common ligament injuries in mining or construction worker is ACL tear as the results shows that ACL gives highest stress that other ligaments. PCL had lower stress than ACL as in medical, PCL gives far less common injury than ACL because of PCL function itself that maintaining joint normal function. From the research, it can be concluded that wearing the kneepad will reduce the stress on knee ligament of construction worker to prevent injury and knee pain.
Download or read book A Finite Element Model of the Human Knee Joint for the Study of Meniscal Replacements written by Tammy Lynn Haut Donahue and published by . This book was released on 2000 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress Analysis of the Human Tibia Knee Joint Using Finite Element Method written by Nor Fadhillah Mohamed Azmin and published by . This book was released on 2007 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the several years of studies that have been contributed to the human knee joint in pursue of producing a failure free knee joint protheses, there are still a lot of rooms for improvement on the available protheses. In this present study, a series of analyses on the human tibia has been carried out. The objectives of the present study were to study effects of stress distribution on human tibia in various degrees of flexion simulating walking and squatting. The Finite Element (FE) method was adopted for the analysis. Through the finite element analyses, data concerning the stress distribution and von Misses stress during gait cycle and squatting were obtained. The results obtained were compared with those of the experimental literature for validation. The results of this present study indicated that low stress value occurs during toe-off simulation while the high stress value occurs during deep flexion with the knee is flexed 90o. The von Mises stress observed on the medial compartment during these instants were 13.85Mpa and 26.84Mpa respectively. The obtained average stress distribution of a gait cycle and deep flexions were 15.29MPa and 25.09Mpa respectively. It is worth to note that a high stress concentration occurs at the tibial plateau, distinctively at the medial compartment. This implies that under deep flexion a possible unstable fracture will be initiated since the maximum stress allowable on the tibia is 25MPa. In conclusion, this kind of research gives a better understanding of the stress applied on the tibia by body weight that assist on designing Total Knee Replacement against failure. The result could support in the context of minimizing contact stress between the tibia bone and the tibial insert.
Download or read book Finite Element Analysis of Human Knees with Different Morphological Abnormalities written by Matteo Losapio and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Analysis of Knee and Hip Joints written by Bhaskar Kumar Madeti and published by Independent Author. This book was released on 2022-12-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomechanics as an independent branch of science has gained considerable importance over the last seven decades especially owing to its valuable medical applications. Replacement of hip joint and knee components due to wear, injury or even breakage caused by accidents or due to senility. Consequently, considerable research has been intensively choosing suitable synthetic materials, conducting experiments on musculoskeletal models and carrying out an appropriate finite element analysis. However researchers have not concentrated on the detailed analysis of various forces in the bones and muscles connected to the knee and hip joints. Attention of researchers in recent past has been leaning more towards the biological and medical fields than on the mechanical computations. The present work aims at developing a representation of all the forces by the free body diagrams of the hip and knee joints. To know the force or stress distribution in the hip and knee joints of human being, one has to understand hip and knee anatomy. Knee joint is a complicated assembly; force analysis of knee is carried out by using principles of classical mechanics. Axial compressive and Muscle forces are the two forces which acts on the knee joint, is determined for three different postures of human being (standing, staircase accent and staircase decent). Hip joint is also another intricate assembly; here force analysis of hip is also carried out by using principles of classical mechanics. Axial compressive and ligament forces are the two forces which acts on the hip joint, is determined for standing and bending postures for various body weights of human being. The two major bones involved in both knee and hip joints are Tibia and Femur. In order to create 3D geometric models of these bones, image processing software is used. The input source for image processing software is CT Scan slices (DICOM images). The sequence of the slices is selected, by using scan image processing tools like segmentation, volume rendering and various filters, three dimensional models are created. Finally, fine mesh is generated to these bone models, these files are saved as .stl format and imported to ANSYS 15.0. By providing the boundary conditions to the 3D models of bones in ANSYS software, the Von-Mises stresses, normal stresses and total deformations are evaluated for both the bones, Tibia and Femur.
Download or read book Cartilage Tissue and Knee Joint Biomechanics written by Amirsadegh Rezazadeh Nochehdehi and published by Elsevier. This book was released on 2023-09-18 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cartilage, Tissue and Knee Joint Biomechanics: Fundamentals, Characterization and Modelling is a cutting-edge multidisciplinary book specifically focused on modeling, characterization and related clinical aspects. The book takes a comprehensive approach towards mechanics, fundamentals, morphology and properties of Cartilage Tissue and Knee Joints. Leading researchers from health science, medical technologists, engineers, academics, government, and private research institutions across the globe have contributed to this book. This book is a very valuable resource for graduates and postgraduates, engineers and research scholars. The content also includes comprehensive real-world applications. As a reference for the total knee arthroplasty, this book focuses deeply on existing related theories (including: histology, design, manufacturing and clinical aspects) to assist readers in solving fundamental and applied problems in biomechanical and biomaterials characterization, modeling and simulation of human cartilages and cells. For biomedical engineers dealing with implants and biomaterials for knee joint injuries, this book will guide you in learning the knee anatomy, range of motion, surgical procedures, physiological loading and boundary conditions, biomechanics of connective soft tissues, type of injuries, and more. Provides a comprehensive resource on the knee joint and its connective soft tissues; content included spans biomechanics, biomaterials, biology, anatomy, imaging and surgical procedure Covers ISO and FDA based regulatory control and compliance in the manufacturing process Includes discussions on the relationship between knee anatomical parameters and knee biomechanics
Download or read book Dynamic Response Analysis of the Human Knee Joint written by Brandi Lyn Bohleber and published by . This book was released on 2005 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomedical Imaging and Computational Modeling in Biomechanics written by Ugo Andreaus and published by Springer Science & Business Media. This book was released on 2012-10-09 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects the state-of-art and new trends in image analysis and biomechanics. It covers a wide field of scientific and cultural topics, ranging from remodeling of bone tissue under the mechanical stimulus up to optimizing the performance of sports equipment, through the patient-specific modeling in orthopedics, microtomography and its application in oral and implant research, computational modeling in the field of hip prostheses, image based model development and analysis of the human knee joint, kinematics of the hip joint, micro-scale analysis of compositional and mechanical properties of dentin, automated techniques for cervical cell image analysis, and biomedical imaging and computational modeling in cardiovascular disease. The book will be of interest to researchers, Ph.D students, and graduate students with multidisciplinary interests related to image analysis and understanding, medical imaging, biomechanics, simulation and modeling, experimental analysis
Download or read book Human Health Engineering written by Jean-Marie Aerts and published by MDPI. This book was released on 2020-03-12 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Special Issue on human health engineering, we invited submissions exploring recent contributions to the field of human health engineering, which is the technology used for monitoring the physical or mental health status of individuals in a variety of applications. Contributions focused on sensors, wearable hardware, algorithms, or integrated monitoring systems. We organized the different papers according to their contributions to the main aspects of the monitoring and control engineering scheme applied to human health applications, including papers focusing on measuring/sensing physiological variables, contributions describing research on the modelling of biological signals, papers highlighting health monitoring applications, and finally examples of control applications for human health. In comparison to biomedical engineering, the field of human health engineering also covers applications on healthy humans (e.g., sports, sleep, and stress) and thus not only contributes to develop technology for curing patients or supporting chronically ill people, but also more generally for disease prevention and optimizing human well-being.
Download or read book Multibody Mechatronic Systems written by Martín Pucheta and published by Springer Nature. This book was released on 2020-10-22 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the latest advances, innovations, and applications in the field of multibody and mechatronic systems. Topics addressed include the analysis and synthesis of mechanisms; dynamics of multibody systems; design algorithms for mechatronic systems; robots and micromachines; experimental validations; theory of mechatronic simulation; mechatronic systems for rehabilitation and assistive technologies; mechatronic systems for energy harvesting; virtual reality integration in multibody and mechatronic systems; multibody design in robotic systems; and control of mechatronic systems. The contents reflect the outcomes of the 7th International Symposium on Multibody Systems and Mechatronics (7th MuSMe) in 2020, within the framework of the FEIbIM Commission for Robotics and Mechanisms and IFToMM Technical Committees for Multibody Dynamics and for Robotics and Mechatronics.
Download or read book Computational Modeling in Bioengineering and Bioinformatics written by Nenad Filipovic and published by Academic Press. This book was released on 2019-10-09 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Modeling in Bioengineering and Bioinformatics promotes complementary disciplines that hold great promise for the advancement of research and development in complex medical and biological systems, and in the environment, public health, drug design, and so on. It provides a common platform by bridging these two very important and complementary disciplines into an interactive and attractive forum. Chapters cover biomechanics and bioimaging, biomedical decision support system, data mining, personalized diagnoses, bio-signal processing, protein structure prediction, tissue and cell engineering, biomedical image processing, analysis and visualization, high performance computing and sports bioengineering. The book's chapters are the result of many international projects in the area of bioengineering and bioinformatics done at the Research and Development Center for Bioengineering BioIRC and by the Faculty of Engineering at the University of Kragujevac, Serbia. Presents recent advances at the crossroads of biomedical engineering and bioinformatics, one of the hottest areas in biomedical and clinical research Discusses a wide range of leading-edge research topics, including biomechanics and bioimaging, biomedical decision support systems, data mining, personalized diagnoses, bio-signal processing, protein structure prediction, tissue and cell engineering, amongst others Includes coverage of biomechanical, bioengineering and computational methods of treatment and diagnosis
Download or read book Human Knee Elbow and Shoulder Finite Element Modeling and Computing Techniques written by Buvanesvari V K and published by Independent Author. This book was released on 2022-12-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The finite element modelling (FEM) is a powerful instrument to study articular and tissue mechanics, as it allows variables to be manipulated and situations simulated which are difficult or impossible to evaluate clinically or experimentally. The accuracy of FE models depends on well-defined anatomy, material properties and limits. Due to the significant inter-tissue structural variability in morphology, analysis of individual and insights tends to involve a subject- specific FE modelling. Modelling efforts in in vivo were limited by difficulties in data acquisition and multimodal data analysis, including proper registration and integration of data, in finite element model construction or validation. Recent, several techniques have increased the potential to incorporate accurate tissue boundaries and morphology for image reconstruction based on subject specific finite element analysis. Hence, the proposed system uses image segmentation with 3D FEM uses the concept of image segmentation of medical images. The proposed system uses canny edge detection or improved canny edge detection for the segmentation of medical images. The canny edge method extracts the edge information of MR images of knee cartilage by incorporating a vector image model. The study also uses certain noise removal models at its pre-processing stage to remove the presence of Rician noise in MRI. Finally, the obtained segmented edges is sent as input to the 3D conversion in Ansys. The ground truth information is collected from the skilled doctors, who are experts in knee.
Download or read book The Adult Knee written by John J. Callaghan and published by Lippincott Williams & Wilkins. This book was released on 2003 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written and edited by the foremost experts in knee surgery, this definitive two-volume reference provides comprehensive coverage of the evaluation and surgical management of problems of the adult knee. In 117 detailed chapters, the text covers basic science, clinical science, soft tissue injury of the knee, tendon and ligament surgery, osteochondral injury to the knee, patella femoral disorders, alternatives to arthroplasty for knee arthritis, primary total knee arthroplasty, perioperative management in total knee replacement, complications of total knee replacement, revision total knee arthroplasty, and future developments.
