In Brief:
We studied electromyography, somatosensory, and motor-evoked potentials, and cutaneous silent periods in 21 patients with cervical spondylotic myelopathy. Abnormal motor-evoked potentials findings were more frequent in upper than lower limbs, and were more frequent than abnormal somatosensory potentials findings. Abnormal cutaneous silent periods were equally sensitive as upper limb motor-evoked potentials.