Kouichiro Toyoda

Learn More
Several electrophysiologic methods have been used for intraoperative monitoring of spinal cord functions. Recently, muscle responses following transcranial electric stimulation have also been widely used. However, in patients with severe myelopathy, only the spinal cord responses following spinal cord stimulation can be recorded. We report a false-negative(More)
STUDY DESIGN Six cases with distal-type cervical spondylotic amyotrophy are reported. OBJECTIVE To investigate the pathophysiology of distal-type cervical spondylotic amyotrophy from magnetic resonance imaging and intraoperative evoked spinal cord responses. SUMMARY OF BACKGROUND DATA Cervical spondylotic amyotrophy had a characteristic clinical symptom(More)
A 64-year-old man who presented right drop fingers without pyramidal signs due to cervical spondylosis is reported. Magnetic resonance imaging showed a high signal intensity change on T2-weighted scans of the spinal cord at the C6/7 intervertebral level. Evoked spinal cord potentials following ulnar nerve stimulation were attenuated at the C6/7(More)
  • 1