What is the term for the sensation of electrical shock that can occur following radiation treatment to the spine?

The sensation of electrical shock that some patients experience after radiation treatment to the spine is known as Lhermitte's sign. This phenomenon typically occurs when there is damage to the spinal cord or disruption of nerve pathways, which can happen due to radiation therapy affecting the surrounding tissues. When patients bend their neck, they may feel a sudden, brief sensation resembling an electric shock that travels down the spine and can radiate into the arms or legs.

Lhermitte's sign is especially significant for clinicians as it can indicate underlying neurological issues resulting from previous treatments, including potential myelopathy, and requires appropriate assessment and management. This term is widely recognized in the context of both radiation therapy and other conditions that affect the cervical spine or spinal cord.

The other terms provided relate to different medical conditions or signs and thus do not apply to the sensation described.