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

Figure 2

Resting records from basic EMG performed on the abductor pollicis brevis muscle in (a) a healthy volunteer from the control group, and in (b) a patient with cervical radiculopathy. Part (a) of the figure shows “electric silence,” i.e., the lack of pathological spontaneous potentials, while part (b) shows positive sharp waves and fibrillations.

(a)

(b)