"From residents to seasoned practitioners, a detailed knowledge of surface and functional anatomy is essential before a needle electrode can be inserted into a muscle with optimal effectiveness and minimal discomfort to the patient. This book, written by long-time experts in the field, gives the tools for conducting an accurate, well tolerated needle EMG examination - based on identifiable landmarks and a keen understanding of musculoskeletal anatomy. Highlights of this practical clinical resource: Each muscle is systematically described by its origin, insertion, innervation, and action. Optimal patient positioning and the needle electrode location, as well as the brief clinical notes, allow easy access to any relevant topics Exquisite illustrations throughout highlight clinical landmarks and aid in needle electrode placement, especially in deep muscles that may be difficult to identify Anatomic guidelines for the entire body are covered in twelve comprehensive sections Alternative methods of needle placement are discussed and compared For all electromyographers in practice and training, this book offers key information for minimizing the number of needle penetrations, reducing patient discomfort, shortening the length of the examination, and obtaining precise diagnostic information. Especially when dealing with an uncooperative or limited patient, it allows the electromyographer to visualize the underlying anatomy and electrode path for maximum results. Find these typical guidelines for muscle sampling: Work from proximal to distal in the limb, as the proximal muscles are usually less sensitive to needle insertion than the distal small muscles Test the weakest muscle first, as it has the greatest probability for revealing abnormalities. However, interpret carefully as the end stage of muscle pathology does not reveal significant findings. Examine less painful muscles first intrinsic muscles of the hands and feet are usually very sensitive. Be aware that some patients prefer needle EMG to the shocks associated with nerve conduction studies. Consult an expert before proceeding with studies on unfamiliar muscles -- and take all necessary precautions when planning the examination. "

This manual is a practical, illustrated how-to guide to the proper techniques and electrode placements for common nerve conduction studies. The first section describes each nerve conduction study, including placement of electrodes, typical electromyography equipment settings, normal values, and pearls and pitfalls. The second section provides detailed coverage of surface anatomy for needle electromyography and shows where to place the needles for each muscle. More than 200 clear photographs demonstrate correct placement of needle electrodes. Chapters in each section follow a consistent sequence and are written in outline format to help readers find information quickly.

This invaluable book for the electromyographer dispenses the latest techniques detailing methods of intramuscular electrode placement. The author examines the basic principles in electromyography (EMG) and includes updated information for the appendicular and axial muscles. It is divided into 14 sections organized by anatomical region: the muscles of the hand, forearm, arm, shoulder girdle, foot, leg, thigh, pelvis, hip joint, perineal region, paraspinal region, abdominal wall, the intercostals and diaphragm regions, along with the muscles innervated by cranial nerves. This information includes the innervations and attachments of each muscle, how to position the patient for examination, the appropriate site for insertion of the electrode, the depth of insertion for the electrode, and the action that the patient should perform to activate the muscle. The descriptions of the techniques used for rarely examined muscles are sufficient for a clinician to have the confidence needed to perform the procedure. Common errors in electrode placement and clinically relevant comments are illustrated and discussed, including cross-sectional illustrations on the appendicular muscles. A particularly useful inclusion is “Pitfalls” that describes which muscle the electrode will record if the needle is placed too deep, not deep enough, or not at the location described. The text contains a useful appendix, providing dermatomes of the limb and trunk, cutaneous innervations of the head, and excellent illustrations of both the brachial plexus and the lumbo-sacral-coccygeal plexus. The appendix also contains a useful table listing all muscles that are presented in the text with innervations from the peripheral nerve to the mixed spinal nerve root. Well organized, clearly and concisely written, this book remains a learning tool and excellent reference for electromyographers and for healthcare practitioners who are expanding their practice skills to include diagnostic EMG, as well as for graduate students who use EMG as part of their research.

Diagnose neuromuscular disorders more quickly and accurately with Electromyography and Neuromuscular Disorders: Clinical-Electrophysiologic Correlations, 3rd Edition! State-of-the-art guidance helps you correlate electromyographic and clinical findings and use the latest EMG techniques to their fullest potential. Consult this title on your favorite e-reader with intuitive search tools and adjustable font sizes. Elsevier eBooks provide instant portable access to your entire library, no matter what device you're using or where you're located. Successfully correlate electrodiagnostic findings with key clinical findings for more confident diagnoses. Clearly see how to apply what you’ve learned with abundant case studies throughout the book. Obtain relevant clinical guidance quickly and easily with an accessible, easy-to-read writing style that’s both comprehensive and easy to understand. Ensure correct EMG needle placement and avoid neurovascular injuries by referring to more than 65 detailed, cross-sectional anatomy drawings. Diagnose many newly defined genetic neuromuscular conditions based on their electrodiagnostic presentation. Stay up to date with must-know information on iatrogenic complications of electrodiagnostic studies. Visualize key concepts more easily with a brand-new full-color design, new artwork, and new photographs. Access Electromyography and Neuromuscular Disorders online, fully searchable, at www.expertconsult.com, along with more than 70 videos that allow you to see and hear the EMG waveforms discussed in the text, as well as a convenient "test yourself" module.

The gold standard in many EMG labs, this resource is a practical working reference for performing a wide variety of common nerve conduction studies. It provides both practicing clinicians and trainees with an impressive database of normal values they can use to interpret nerve conduction results with confidence. The third edition is revised to deliver an up-to-date set of normal values that take into account age, sex, height, and body mass index for a wide range of demographic groups. Two new authors bring a novel clinical perspective to the manual along with valuable tips and pearls to help the busy electromyographer conduct more effective studies and make a more informed diagnosis. The third edition includes updated nomenclature and methodology for conducting nerve conduction tests along with supportive evidence to bolster all recommendations. New illustrations and diagrams supplement precise descriptions of electrode placements and study techniques. Additionally, the authors codify the acceptable differences in latency, amplitude, and nerve conduction velocity between nerves of the same or opposite limbs, to foster a more precise diagnosis. Recently updated references and suggested readings for each study provide the opportunity for more in-depth learning. For determining normal reference values for any patient, or for review of a specific nerve conduction technique, this third edition of Buschbacher’s Manual of Nerve Conduction Studies is essential for physicians and technologists alike. Key Features: New references, technique descriptions, and drawings bring the classic manual up to date Provides clinical pearls and tips for performing each study A new Appendix covers common anomalous innervations such as the Martin Gruber Anastomosis. Offers a current, comprehensive set of reference values for clinical use Discusses advantages and pitfalls of alternative techniques Includes schematics to illustrate optimal electrode placement and typical waveform appearance

Continuing the unique case-based learning approach to fill the gap between theory and practice, the third edition of Electromyography in Clinical Practice addresses the advances in neuromuscular medicine, including anterior horn cell disorders, peripheral neuropathies, neuromuscular junction disorders, and myopathies. It is the perfect resource for neurologists, physiatrists, neurosurgeons, orthopedic surgeons, rheumatologists, physical therapists, and pain management specialists, neuromuscular and clinical neurophysiology fellows, as well as the resident, trainee, and medical student interested in the diagnosis and management of the most common disorders encountered in the EMG lab. The book is divided into two major parts; the first an introduction to clinical electromyography and the second is separated into 27 case studies. The cases focus on localized disorders in the lower and upper extremities and end with a selection of generalized disorders. Each case begins with a detailed, tabulated, EMG study, followed by several questions, and a detailed analysis of the study, then takes into account patient history, the physical examination, EMG readings, treatment, and patient follow-up to sharpen the clinicians problem-solving skills.

Electromyography (EMG) is a technique for evaluating and recording the electrical activity produced by nerves and muscles. Interpreting EMG is a mandatory skill for neurologists and rehabilitation specialists. This textbook provides the reader with a detailed discussion of the concepts and principles underlying electrodiagnostic medicine. It is written for an audience without pre-existing knowledge in this discipline, including beginner technicians and physicians in training. It is an ideal review for seasoned practitioners and those preparing for board examinations. It begins with a review of the foundational sciences and works through the field in twenty chapters, including a large number of case studies demonstrating correct application and interpretation. Appendices of information frequently required in the EMG laboratory, such as Nerve Conduction Study techniques and their age-related normal values, anatomic regions assessed by each NCS and needle EMG studies, safety issues, and other important topics, are also included.

A complete overview of electromyography with contributions from pacesetters in the field In recent years, insights from the field of engineering have illuminated the vast potential of electromyography (EMG) in biomedical technology. Featuring contributions from key innovators working in the field today, Electromyography reveals the broad applications of EMG data in areas as diverse as neurology, ergonomics, exercise physiology, rehabilitation, movement analysis, biofeedback, and myoelectric control of prosthesis. Bridging the gap between engineering and physiology, this pioneering volume explains the essential concepts needed to detect, understand, process, and interpret EMG signals using non-invasive electrodes. Electromyography shows how engineering tools such as models and signal processing methods can greatly augment the insight provided by surface EMG signals. Topics covered include: Basic physiology and biophysics of EMG generation Needle and surface electrode detection techniques Signal conditioning and processing issues Single- and multi-channel techniques for information extraction Development and application of physical models Advanced signal processing techniques With its fresh engineering perspective, Electromyography offers physiologists, medical professionals, and students in biomedical engineering a new window into the far-reaching possibilities of this dynamic technology.

Beautifully and lavishly illustrated, Atlas of Nerve Conduction Studies and Electromyography demystifies the major conditions affecting peripheral nerves and provides electrodiagnostic strategies for confirming suspected lesions of the peripheral nervous system. Building on the success of the landmark Atlas of Electromyography, this new text is divided into sections based on the major peripheral nerves. It contains detailed illustrations of each nerve along with a discussion of its anatomy, followed by a thorough outline of the clinical conditions and entrapment syndromes that affect the nerve, including a list of the etiologies, clinical features, and electrodiagnostic strategies used for each syndrome. Routine and special motor and sensory nerve conduction studies are shown in an anatomical illustration. In addition, each muscle supplied by the peripheral nerve is illustrated showing the root, plexus, and peripheral nerve supply to the muscle and is accompanied by a corresponding human photograph. Written text provides information about the nerve conduction studies, muscle origin, tendon insertion, voluntary activation maneuver, and the site of optimum needle insertion, which is identified in the figures by a black dot or a needle electrode. Atlas of Nerve Conduction Studies and Electromyography is the perfect anatomical guide for neurologists, specialists in physical medicine and rehabilitation, and electrodiagnostic medicine consultants, while also providing support for individuals in residency training programs, critical care medicine, neurological surgery, and family practice.

Reflects on developments in noninvasive electromyography, and includes advances and applications in signal detection, processing and interpretation Addresses EMG imaging technology together with the issue of decomposition of surface EMG Includes advanced single and multi-channel techniques for information extraction from surface EMG signals Presents the analysis and information extraction of surface EMG at various scales, from motor units to the concept of muscle synergies.