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== Definition == Myelopathy describes any neurologic deficit related to the spinal cord.〔("Myelopathy" ) at American Journal of Neuroradiology〕 When due to trauma, it is known as (acute) spinal cord injury. When inflammatory, it is known as myelitis. Disease that is vascular in nature is known as vascular myelopathy. The most common form of myelopathy in human, ''cervical spondylotic myelopathy (CSM)'', is caused by arthritic changes (spondylosis) of the cervical spine, which result in narrowing of the spinal canal (spinal stenosis) ultimately causing compression of the spinal cord. In Asian populations, spinal cord compression often occurs due to a different, inflammatory process affecting the posterior longitudinal ligament. Clinical signs and symptoms depend on which spinal cord level (cervical, thoracic or lumbar) is affected and the extent (anterior, posterior or lateral) of the pathology, and may include: * upper motor neuron signs (weakness, spasticity, clumsiness, altered tonus) * lower motor neuron signs (weakness, clumsiness in the muscle group that innervated at the level of spinal cord compromise) * hyperreflexia and pathological reflexes, including Hoffmann's sign and inverted Plantar reflex (positive Babinski sign) * sensory deficits * bowel/bladder symptoms and sexual dysfunction. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Myelopathy」の詳細全文を読む スポンサード リンク
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