Needle Electromyography, F-Wave, and H-Reflex: A Critical Reappraisal of Their Utility in the Diagnosis of Various Sensory Symptoms in the Extremities and Spine in the Setting of Normal Neurological Examination

作     者：Reynaldo P. Lazaro Thomas S. Eagan Reynaldo P. Lazaro;Thomas S. Eagan

作者机构：Neurology and Electroneuromyography Clinic Oneonta NY USA Orthopaedic and Wellness Center and Electroneuromyography Clinic Gloversville NY USA 

出 版 物：《Open Journal of Orthopedics》 (矫形学期刊（英文）)

年 卷 期：2021年第11卷第12期

页      面：383-391页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：EMG Electromyography F-Wave H-Reflex Procedural Indications 

摘      要：Objective: Health care providers refer their patients to electromyography (EMG) laboratories for the evaluation of various sensory symptoms in the extremities and spine. The procedure is usually performed in conjunction with transcutaneous electrical stimulation of peripheral nerves and elicitation of the F-wave and H-reflex. The present study aimed to determine the real value of these procedures in the diagnosis of sensory symptoms in the setting of a normal neurologic examination. Method: The EMG reports and clinical histories of 100 patients, including 10 patients evaluated by other electromyographers, were reviewed. The study was focused on those with normal neurological examinations and those without histories of ongoing medical disorders and major surgeries to the extremities and spine.Results: All EMGs, F-wave, and H-reflex reports reviewed were normal, including those obtained from the second procedure performed in some patients and of those who subsequently underwent spinal surgery. Neurologic examination in all patients was normal. Conclusion: Needle EMG, F-wave and H-Reflex examinations are predictably normal in patients with non-dermatomal, non-neuropathic sensory symptoms with normal neurologic examination and without history of prespan style=font-family:Ver