Quantification Of Spinal Instability For Evaluation Of Experimental Models
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Quantification Of Spinal Instability For Evaluation Of Experimental Models
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Author : Elizabeth Suzanne Doughty
language : en
Publisher:
Release Date : 2011
Quantification Of Spinal Instability For Evaluation Of Experimental Models written by Elizabeth Suzanne Doughty and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Spinal instability is the inability of the various spinal structures to limit displacement under physiological loads in order to prevent neurological damage, incapacitating pain, and major deformity. There is no quantitative gold-standard definition for non-traumatic instability. The study objectives were to quantify unstable motion for the pediatric to elderly spine and to assess instability for ligament injury and multiple laminectomy. The novel instability metric, a collection of instability data, was produced from normal range of motion data and a published guideline for adult spinal instability. A high-fidelity finite element model of the adult lumbar spine was modified to test the sensitivity of singular ligament removal and size and location of multiple laminectomy to induce instability under physiological loads. Range of motion indicating instability increases in pediatric patients until the onset of puberty and then declines with age. Singular ligament removal and one-, two- and three-level laminectomy did not induce instability except in the case of facet capsular ligament removal. It is difficult and expensive to study spinal disorders in vivo making it advantageous to study them ex vivo. The spinal instability metric (SIM) will provide a standard for application with any spine model, clinical or experimental, to assess the risk of developing the instability-induced effects of pain, neurological damage and deformity.
A Comparison Of Methods To Quantify Control Of The Spine
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Author : Eric Bourdon
language : en
Publisher:
Release Date : 2018
A Comparison Of Methods To Quantify Control Of The Spine written by Eric Bourdon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Low back pain (LBP) affects many individuals worldwide. The established association between LBP and spine motor control has led to the development of many control assessment techniques. To understand the association between motor control and LBP, it is essential to understand the relationship between separate assessment techniques. Systems identification (SI) and local dynamic stability (LDS) are two methods commonly used to quantify spine control. SI provides a detailed description of control but uses linear assumptions, whereas LDS provides a "black box" non-linear assessment and can be quantified during dynamic movements. Although both SI and LDS techniques aim to measure the control of the spine, each employs different experimental setups and data processing strategies. Therefore, the purpose of this thesis was to compare the motor behaviour outcomes of SI and LDS quantification techniques. To do this, 15 participants completed two tasks (SI and LDS) in a random order. For the SI task, participants were seated and ventrally perturbed at the level of the 10th thoracic vertebrae (T10). They completed this task under instructions to resist the perturbations (resist condition) or relax and remain upright (relax condition). Admittance was represented using frequency response functions, and a validated neuromuscular control model quantified lumbar stiffness, damping and muscle spindle feedback gains. The LDS task involved participants completing three repetitive movement blocks consisting of flexion/extension, axial rotation, and complex movements. In each block, the maximum finite-time Lyapunov exponent (?max) was estimated. A stepwise linear regression determined that ?max during the rotation task was best predicted by SI outcomes in the relax condition (adjusted R square = 0.65). Many conditions demonstrated no significant relationship between ?max and SI outcomes. These findings outline the importance of a consistent framework for the assessment of spine control. This could improve clinical assessment efficiency as well as the understanding of the association between LBP and motor control.
Cottrell And Young S Neuroanesthesia
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Author : James E. Cottrell
language : en
Publisher: Elsevier Health Sciences
Release Date : 2016-10-24
Cottrell And Young S Neuroanesthesia written by James E. Cottrell and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-24 with Medical categories.
Cottrell's Neuroanesthesia 5th Edition, edited by James E. Cottrell, MD, FRCA and William L. Young, MD, delivers the complete and authoritative guidance you need to ensure optimal perioperative safety for neurosurgical patients. Integrating current scientific principles with the newest clinical applications, it not only explains what to do under any set of circumstances but also why to do it and how to avoid complications. Comprehensive updates reflect all of the latest developments in neurosurgical anesthesia, and contributions from many new experts provide fresh insights into overcoming tough clinical challenges. New co-editor William L. Young, MD joins James E. Cottrell, MD, FRCA at the book's editorial helm, providing additional, complementary expertise and further enhancing the book's authority. New chapters keep you current on interventional neuroradiology, anesthetic management of patients with arteriovenous malformations and aneurysms, awake craniotomy, epilepsy, minimally invasive and robotic surgery, and pregnancy and neurologic disease. Comprehensive updates reflect all of the latest developments in neurosurgical anesthesia, and contributions from many new experts provide fresh insights into overcoming tough clinical challenges. Comprehensive and broad coverage of all important aspects of neuroanesthesia, including special patient populations, enables you to find reliable answers to any clinical question. Chapters written by neurointensivists, neurosurgeons, and radiologists provide well-rounded perspectives on each topic. A consistent, logical organization to every chapter makes answers easy to find quickly. Clear conceptual illustrations make complex concepts easier to understand at a glance.
Biomechanics Of The Spine
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Author : Fabio Galbusera
language : en
Publisher: Academic Press
Release Date : 2018-04-23
Biomechanics Of The Spine written by Fabio Galbusera and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-23 with Technology & Engineering categories.
Biomechanics of the Spine encompasses the basics of spine biomechanics, spinal tissues, spinal disorders and treatment methods. Organized into four parts, the first chapters explore the functional anatomy of the spine, with special emphasis on aspects which are biomechanically relevant and quite often neglected in clinical literature. The second part describes the mechanics of the individual spinal tissues, along with commonly used testing set-ups and the constitutive models used to represent them in mathematical studies. The third part covers in detail the current methods which are used in spine research: experimental testing, numerical simulation and in vivo studies (imaging and motion analysis). The last part covers the biomechanical aspects of spinal pathologies and their surgical treatment. This valuable reference is ideal for bioengineers who are involved in spine biomechanics, and spinal surgeons who are looking to broaden their biomechanical knowledge base. The contributors to this book are from the leading institutions in the world that are researching spine biomechanics. Includes broad coverage of spine disorders and surgery with a biomechanical focus Summarizes state-of-the-art and cutting-edge research in the field of spine biomechanics Discusses a variety of methods, including In vivo and In vitro testing, and finite element and musculoskeletal modeling
Motion Preservation Surgery Of The Spine
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Author : James J. Yue
language : en
Publisher: Elsevier Health Sciences
Release Date : 2008-06-11
Motion Preservation Surgery Of The Spine written by James J. Yue and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-06-11 with Medical categories.
New motion-preserving devices are revolutionizing spine surgery...but the learning curve for these operations is steep, and great attention must be given to patient and device selection and the perfect execution of each procedure. Only one reference spells out exactly how to perform these new techniques...and its peerless author team, comprised of key investigators involved in the devices' actual clinical trials, is uniquely qualified to help you get the best results! These global leaders in this area discuss the advantages and disadvantages of the full range of non-fusion technologies...and present the step-by-step, richly illustrated operative guidance you need to achieve optimal outcomes! Select the best device and approach for each patient! * cervical total disc arthroplasty * lumbar total disc arthroplasty * lumbar partial disc replacement: nucleus replacement * lumbar posterior dynamic stabilization: pedicle screw based * lumbar posterior dynamic stabilization: interspinous based * lumbar facet replacement Produce optimal outcomes with detailed advice on... * advantages and disadvantages of each option * indications and contraindications * patient selection * interpretation of imaging studies * surgical anatomy and biomechanics * surgical techniques * tips and pearls See how to perform each technique, thanks to step-by-step, full-color illustrations
Veterinary Surgery Small Animal Expert Consult E Book
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Author : Spencer A. Johnston
language : en
Publisher: Elsevier Health Sciences
Release Date : 2017-06-14
Veterinary Surgery Small Animal Expert Consult E Book written by Spencer A. Johnston and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-14 with Medical categories.
Focus on the "how" and "why" of medical/surgical conditions — the critical issues that lead to successful outcomes for your patients — with Veterinary Surgery: Small Animal, Second Edition. This two-volume full-color resource offers an authoritative, comprehensive review of disease processes, a thorough evaluation of basic clinical science information, and in-depth discussion of advanced surgeries. With an updated Expert Consult website you can access anytime and detailed coverage of surgical procedures, it is the definitive reference for surgical specialists, practicing veterinarians, and residents. Expert Consult website offers access to the entire text online, plus references linked to original abstracts on PubMed. Comprehensive coverage includes surgical biology, surgical methods and perioperative care, neurosurgery, and orthopedics in Volume One, and all soft tissue surgery organized by body system in Volume Two. Extensive references to published studies available on Expert Consult show the factual basis for the material. Strong blend of clinical and basic science information facilitates a clear understanding of clinical issues surrounding operative situations. Highly recognized contributing authors create chapters from their own experience and knowledge base, providing the most authoritative, current information available. Coverage of anatomy, physiology, and pathophysiology in chapters on specific organs includes information critical to operative procedures and patient management. In-depth chapters on anesthesia, surgical oncology, tumors of the spine, and musculoskeletal neoplasia provide valuable resources for practicing surgeons, especially in the area of cancer treatment. Preoperative considerations and surgical implications for surgical procedures help surgeons make decisions about treatment approaches. NEW and UPDATED! Expert Consult website with print text plus complete online access to the book’s contents, so you can use it anytime — anywhere. EXPANDED! Coverage of interventional radiology techniques in Volume Two (soft tissue volume) to provide cutting-edge information on contemporary imaging modalities that gain access to different structures of the patient’s body for diagnostic and therapeutic reasons. NEW and UPDATED! Expanded coverage of coaptation devices and small animal prosthetics clearly explains how they are used in a variety of clinical situations. EXPANDED! Principles of minimally invasive plate treatment added to Volume One (orthopedic volume) to show how these advancements maximize healing and protect the patient while meeting the surgeon’s goals in using fracture fixation.
Journal Of Rehabilitation Research And Development
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Author :
language : en
Publisher:
Release Date : 1983
Journal Of Rehabilitation Research And Development written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Disabled veterans categories.