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The value and limitations of the various electrophysiologic procedures used in the diagnosis of radiculopathies are discussed, including motor and sensory nerve conduction studies, late responses, somatosensory evoked potentials, nerve root stimulation, and the needle electrode examination. The specific muscles are enumerated which most often appear abnormal on needle electromyography with lesions of the various roots. The electrodiagnostic differentiation of root lesions from plexus lesions is described, and the various electrodiagnostic findings with lumbar canal stenosis are discussed. Finally, the value and limitations of the electrodiagnostic assessment in the evaluation of patients with suspected radiculopathies are reviewed.<\/jats:p>","DOI":"10.1002\/mus.880111102","type":"journal-article","created":{"date-parts":[[2005,1,1]],"date-time":"2005-01-01T05:09:40Z","timestamp":1104556180000},"page":"1099-1114","source":"Crossref","is-referenced-by-count":128,"title":["AAEE minimonograph #32: The electrophysiologic examination in patients with radiculopathies"],"prefix":"10.1002","volume":"11","author":[{"given":"Asa J.","family":"Wilbourn","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Aminoff","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2004,10,13]]},"reference":[{"key":"e_1_2_1_2_2","first-page":"231","volume-title":"Electrodiagnosis in Clinical Neurology","author":"Aminoff MJ","year":"1986"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.35.10.1514"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410170211"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00313337"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.37.2.329"},{"key":"e_1_2_1_7_2","first-page":"412","article-title":"H\u2010reflex: review and classification with suggested clinical uses","volume":"55","author":"Braddon RL","year":"1974","journal-title":"Arch Phys Med Rehabil"},{"key":"e_1_2_1_8_2","first-page":"161","article-title":"Standardization of the \u201cH\u201d reflex and diagnostic use in S1 radiculopathy","volume":"55","author":"Braddon R","year":"1974","journal-title":"Arch Phys Med Rehabil"},{"key":"e_1_2_1_9_2","first-page":"152","article-title":"Sensory nerve conduction studies in cervical root lesions","volume":"10","author":"Branstader ME","year":"1983","journal-title":"Can J Neurol Sci"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1001\/archneurpsyc.1946.02300230045004"},{"key":"e_1_2_1_11_2","first-page":"522","article-title":"Lumbosacral radicular symptoms: importance of bilateral electrodiagnostic studies","volume":"62","author":"Chu J","year":"1981","journal-title":"Arch Phys Med Rehabil"},{"key":"e_1_2_1_12_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00344818"},{"key":"e_1_2_1_13_2","first-page":"403","article-title":"Significance of polyphasic potentials in the diagnosis of cervical root involvement","volume":"49","author":"Crane CR","year":"1968","journal-title":"Arch Phys Med Rehabil"},{"key":"e_1_2_1_14_2","first-page":"454","volume-title":"Medical Neurosciences","author":"Daube JR","year":"1978"},{"key":"e_1_2_1_15_2","first-page":"495","volume-title":"Neurologic Clinics: Symposium on Electrodiagnosis","author":"Eisen A","year":"1985"},{"key":"e_1_2_1_16_2","first-page":"535","volume-title":"Electrodiagnosis in Clinical Neurology","author":"Eisen A","year":"1986"},{"key":"e_1_2_1_17_2","doi-asserted-by":"publisher","DOI":"10.1017\/S0317167100044875"},{"key":"e_1_2_1_18_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.27.7.662"},{"key":"e_1_2_1_19_2","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1017\/S0317167100120517","article-title":"An electrophysiological method for examining lumbosacral root compression","volume":"4","author":"Eisen A","year":"1977","journal-title":"Can J Neurol Sci"},{"key":"e_1_2_1_20_2","doi-asserted-by":"publisher","DOI":"10.1097\/00006123-198210000-00008"},{"key":"e_1_2_1_21_2","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880050912"},{"key":"e_1_2_1_22_2","first-page":"65","article-title":"The F\u2010response\u2014a clinically useful physiological parameter for the evaluation of radicular injury","volume":"19","author":"Fisher MA","year":"1979","journal-title":"Electromyogr Clin Neurophysiol"},{"key":"e_1_2_1_23_2","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.43.8.683"},{"key":"e_1_2_1_24_2","first-page":"349","volume-title":"Electrodiagnosis of Neuromuscular Diseases","author":"Goodgold J","year":"1983"},{"key":"e_1_2_1_25_2","first-page":"1466","volume-title":"Gray's Anatomy of the Human Body, 29th ed. 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