Spinal cord evoked potentials in cervical and thoracic myelopathy
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Updated: Nov 6, 2026

Non-invasive Assessment of Changes in Corticomotoneuronal Transmission in Humans
Published on: May 24, 2017
1Department of Orthopaedic Surgery, Fukui Medical School, Japan.
Abstract:
We have studied 70 patients who underwent surgical decompression with or without fusion for cervical and/or thoracic myelopathy to assess the value of spinal cord evoked potentials (SCEP). The 70 patients included 42 with cervical spondylotic myelopathy, 10 with ossification of the posterior longitudinal ligament of the cervical spine and 18 with thoracic ligamentous ossification. Abnormal SCEP occurred in 88% of the patients with cervical myelopathy. Early recovery in intra- and postoperative SCEP was associated with a better result. The severity of myelopathy correlated significantly with an abnormal SCEP in thoracic myelopathy. SCEP may reflect the severity of disease, and early recovery of intraoperative SCEP may also predict neurological improvement.
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