Motor Evoked Potentials after Supraspinal Stimulation in Pre- and Postoperative Evaluations of Patients with Cervical Radiculopathy

Table 5

Sensitivity and specificity of clinical neurophysiology tests in the evaluation of patients undergoing surgery for radiculopathy of spinal roots C5, C6, and C7.

	Sensitivity (%)	Specificity (%)
EMG recording from DP (C5 decompression)	43	75
EMG recording from DP (C6 decompression)	36	80
EMG recording from BB (C5 decompression)	67	76
EMG recording from BB (C6 decompression)	41	80
EMG recording from TB (C7 decompression)	24	70
EMG recording from APB (C7 decompression)	33	43
RxMEP recording from DP (C5 decompression)	20	86
RxMEP recording from DP (C6 decompression)	27	100
RxMEP recording from BB (C5 decompression)	17	90
RxMEP recording from BB (C6 decompression)	14	100
RxMEP recording from TB (C7 decompression)	6	100
RxMEP recording from APB (C7 decompression)	13	100

EMG: electromyography, RxMEP: root motor evoked potentials, DP: deltoid posterior, BB: biceps brachii, TB: triceps brachii, and APB: abductor pollicis brevis.