Download or read book Mechanical Analogue Model of the Human Lumbar Spine written by CD. Pence and published by . This book was released on 2003 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical testing of spinal instrumentation on cadaveric spine segments can be challenging. In this study, a mechanical analogue lumbar spine model was developed to be similar in rigidity to that of cadaveric spine segments. Three models of an adult human lumbar spine were built from composite vertebrae, ligaments and discs created individually to reproduce the nonlinear mechanical properties of human components. These models and three calf lumbar spines were loaded in a biaxial mechanical test system in axial compression, torsion, right and left lateral bending, flexion and extension. Rigidities were calculated in the secondary linear load-displacement region. Load-displacement behavior was nonlinear for both analogue and calf spines. There was good reproducibility between the models. Average axial rigidity of the analogue spines was 86 N/mm versus 231 N/mm for the calf spines, possibly due to the calf flat-back. In the remaining loading modes, the analogue spine was 26-65% more rigid than young calf spines. Comparisons to human cadaveric spine segments are underway.
Download or read book Spinal Implants written by Mark N. Melkerson and published by ASTM International. This book was released on 2003 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: A November 2001 symposium sought to assess the knowledge base for the testing of spinal implants, improve published standards, encourage new standards activities, and determine whether standards adequately predict clinical experience. Papers from the symposium evaluate testing for spinal constructs,
Download or read book Special Topics in Structural Dynamics Experimental Techniques Vol 5 written by Dario Di Maio and published by Springer Nature. This book was released on with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Behavior of the Human Lumbar Spine written by Jian Xing and published by . This book was released on 1998 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analysis of the Effect of Artificial Disc Replacement on the Mechanical Response of the Human Lumbar Spine written by Antonio Jose Gonzalez and published by . This book was released on 2007 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: mathematica model, lumbar spine, matlab simulation, artificial discs, simplified spine model.
Download or read book The Mechanical Properties of the Human Lumbar Spine written by Allan Tencer and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis is concerned with the investigation, in vitro, of the mechanical properties of the intact and injured human lumbar spine under general loading conditions, by both experimentation and use of a numerical simulation." --
Download or read book Advancing Biomechanical Research Through a Camelid Model of the Human Lumbar Spine written by Dean K. Stolworthy and published by . This book was released on 2015 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing incidence of disc degeneration and its correlation with lower back pain is an alarming trend in modern society. The research of intervertebral disc degeneration and low back pain would greatly benefit from additional methods to study its etiology and possible treatment methods. A large animal model that maintains the biological and mechanical environment that is most similar to the human lumbar spine could provide substantial improvements in understanding and resolving the problem of intervertebral disc related low back pain.
Download or read book Mechanical Properties of Human Lumbar Spine Motion Segments Influences of Age Sex Disc Level and Degeneration written by A. L. Nachemson and published by . This book was released on 1979 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spine Surgery 2 Vol Set E Book written by Edward C. Benzel and published by Elsevier Health Sciences. This book was released on 2012-05-14 with total page 2912 pages. Available in PDF, EPUB and Kindle. Book excerpt: Build a solid foundation of knowledge based on the fundamentals and employ step-by-step instruction from Spine Surgery. Edited by Edward C. Benzel, this best-selling medical reference explores the full spectrum of surgical techniques used in spine surgery and delivers the comprehensive, cutting-edge guidance you need to achieve successful outcomes. Online access, thorough updates, contributions by leading international authorities, an abundance of detailed illustrations, and procedural video clips provide everything you need to avoid and manage complex problems. Glean essential, up-to-date, need-to-know information in one comprehensive reference that explores the full spectrum of surgical techniques used in spine surgery. Hone your surgical skills and technique with intraoperative videos and more than 800 outstanding illustrations demonstrating each technique step by step. Grasp and apply the latest knowledge from more than 25 brand-new chapters, as well as extensive revisions or total rewrites to the majority of existing chapters to present all of the most up-to-date information available on every aspect of spine surgery including motion preservation technologies, endovascular management, back pain and psychosocial interactions, biomechanics, and more. Consult with the best. Renowned neurosurgery authority Edward C. Benzel leads an international team of accomplished neurosurgeons and orthopedic surgeons - many new to this edition - who provide dependable guidance and share innovative approaches to surgical techniques and complications management. Equip yourself to address increasing occurrences of pain among aging and physically active patients. Access the information you need, where you need it on your laptop or mobile device via expertconsult.com, with fully searchable text, a wealth of procedural videos, online updates from the experts, downloadable image gallery and links to PubMed.
Download or read book Benzel s Spine Surgery E Book written by Michael P. Steinmetz and published by Elsevier Health Sciences. This book was released on 2016-06-29 with total page 2507 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the latest edition of Benzel’s Spine Surgery, renowned neurosurgery authority Dr. Edward C. Benzel, along with new editor Dr. Michael P. Steinmetz, deliver the most up-to-date information available on every aspect of spine surgery. Improved visuals and over 100 brand-new illustrations enhance your understanding of the text, while 26 new chapters cover today's hot topics in the field. A must-have resource for every neurosurgeon and orthopedic spine surgeon, Benzel's Spine Surgery provides the expert, step-by-step guidance required for successful surgical outcomes. Glean essential, up-to-date information in one comprehensive reference that explores the full spectrum of techniques used in spine surgery. Expert Consult eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, images, videos, and references from the book on a variety of devices. Covers today's hot topics in spine surgery, such as pelvic parameters in planning for lumbar fusion; minimally invasive strategies for the treatment of tumors and trauma of the spine; and biologics and stem cells. A total of 18 intraoperative videos allow you to hone your skills and techniques. New editor Michael P. Steinmetz brings fresh insights and improvements to the text. Features the addition of 26 chapters, including: -Biologics in Spine Fusion Surgery -Endoscopic and Transnasal Approaches to the Craniocervical Junction -Cellular Injection Techniques for Discogenic Pain -Minimally Invasive Techniques for Thoracolumbar Deformity -Spinal Cord Herniation and Spontaneous Cerebrospinal Fluid Leak -MIS Versus Open Spine Surgery Extensive revisions to many of the existing chapters present all of the most up-to-date information available on every aspect of spine surgery. Improved visuals and over 100 brand-new illustrations enhance learning and retention.
Download or read book Biomechanical Models of the Human Thoracic and Lumbar Spine written by Maria Elizete Kunkel and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2012-04 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Severe cases of scoliosis are treated using implants. The effects of different types of implants have been investigated with mathematical models with modifiable geometry. Our aim was perform a nonlinear regression analyses with anatomical data to generate prediction equations for vertebral and intervertebral disc dimensions as a function of only one given dimension measurable by X-ray, the vertebral body height. Third-order polyno-mial regressions provided moderate to high correlation between the vertebral body heights and the endplates and spinal canal; pedicle heights and the spinous process, in addition to a reasonable correlation of the posterior vertebral structures (pedicle and facet). A set of 50 equations was generated for the prediction of the spine dimensions based on the radiographic measurement of the vertebral body height. It was possible to establish useful predictions for all investigated dimensions. This is an efficient approach for obtaining anatomical data for modeling of the human thoracic and lumbar from measurement of only one parameter per vertebra without the need for direct measurement or 3D reconstructions from medical images.
Download or read book A Detailed Open source Musculoskeletal Model of the Human Lumbar Spine written by Miguel Christophy and published by . This book was released on 2010 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical stability of the human lumbar spine written by Anders Bergmark and published by . This book was released on 1987 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analysis of the Effect of Artificial Disc Replacement on the Mechanical Response of the Human Lumbar Spine written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project is to develop a simplified, two-dimensional mathematical model of the lumbar spine for the purpose of studying the behavior the lumbar spine when affected by degenerative disc disease. Several hypothetical treatment options, including fusion and different types of artificial disc replacements (ADR) were examined. The cases presented consisted of three one-degree of freedom artificial discs, three two-degrees of freedom artificial discs, one ideal three-degrees of freedom artificial disc, a degenerated disc, a fused disc and a healthy spine. The equations of motion were generated for a healthy lumbar spine using Lagrange's equations and numerically integrated using Matlab®. Results were obtained for all cases at two different levels, L4-L5 and L5-S1 in response to an impulsive force of 100N applied at L3 in the posterior anterior direction. In the 1-DOF ADR cases at the L4-L5 level, the shear ADR performed better than the other two ADR, while at the L5-S1 level, the rotational ADR performed better than the other two ADR, and significantly better than the fused vertebrae case since it matched the behavior of the healthy spine much more closely. All the other 1-DOF ADR provided little or no improvement when compared to the fused case. In the 2-DOF ADR cases, the shear rotational ADR behaved very similarly to the healthy spine when implanted at both levels, L4-L5 and L5-S1, showing a behavior that varied by less than 1% in the posterior anterior direction and flexion extension rotation and less than 10% in the axial displacement when compared to the behavior of a healthy spine. Overall, the results of this thesis indicate that implanting an artificial disc to replace a damaged disc offers more benefits for the spine than fusion since this allows the spine to behave closer to the natural healthy spine, and hence most likely cause less damage to adjacent discs.
Download or read book Development and Validation of a Lumbar Vertebral Segment Mechanical Analogue written by Jorge A. Montoya and published by . This book was released on 2000 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Mechanical Analog Representing the Behaviour of the Lumbar Spine During Postero anterior Vertebral Pressures written by Tibor M. Boka and published by . This book was released on 1982 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Simulation of Human Lumbar Spine written by Wilbur Wong and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The human vertebral column serves as the primary protection system to the main spinal cord nerves. By studying a model of how each vertebra reacts under a force applied at different postures would provide valuable information to future medical studies. There is not a standard technique available yet that can be applied to each human. By modeling of the spine using free body diagrams to create equations of motion and using computer software to simulate the lumbar region, the result would allow us to study how the forces and stresses would relate. In addition, this will provide a more precise analysis for vertebral column under different postures. Since each vertebra has a different shape and mass, the model of the spine should be represented using lumped mass, and the tissue and disc surrounding the body of the vertebrae will be represented by spring and dampers. The equations developed is solved using a MATLAB code which plots displacements, while the software, Patran, would output plots of displacement using finite element analysis. With two different modeling approaches, we will be able to determine how different loadings on the spine would affect its deformations.
