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Clinical Neurophysiology Laboratory, Department of Neurology, Massachusetts General Hospital, Boston, MA.
Cervical root stimulation (CRS) was compared with conventional EMG, nerve conduction, and late response studies in 34 patients with possible cervical radiculopathy. Cervical roots were stimulated by monopolar needles inserted into paraspinal muscles, recording compound muscle action potentials in biceps, triceps, and abductor digiti minimi muscles. In 18 patients with clinical evidence of radiculopathy, EMG was abnormal in 11 (61%), but CRS was abnormal in all 18. Of 16 patients with symptoms but no signs of radiculopathy, EMG was abnormal in 5 (31%) and CRS was abnormal in 9 (56%).
Address correspondence and reprint requests to Dr. Berger, Department of Neurology, Albert Einstein College of Medicine, Montefiore Hospital, 111 East 210th Street, Bronx, NY 10467.
Received August 27, 1985. Accepted for publication June 6, 1986.
Presented in part at the thirty-seventh annual meeting of the American Academy of Neurology, Dallas, TX, April 1985.
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