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paraplegia
Paraplegia is an impairment in motor or sensory function of the lower extremities. The word comes from Ionic Greek: παραπληγίη "half-striking". It is usually caused by spinal cord injury or a congenital condition such as spina bifida that affects the neural elements of the spinal canal. The area of the spinal canal that is affected in paraplegia is either the thoracic, lumbar, or sacral regions. If four limbs are affected by paralysis, tetraplegia or quadriplegia, is the correct term. If only one limb is affected, the correct term is monoplegia.
Spastic paraplegia is a form of paraplegia defined by spasticity of the affected muscles, rather than flaccid paralysis.
==Complications==
Due to the decrease or loss of feeling or function in the lower extremities, paraplegia can contribute to a number of medical complications including pressure sores (decubitus), thrombosis, and pneumonia. Physiotherapy and numerous assistive technology, such as a standing frame, as well as vigilant self-observation and -care, may assist in helping to prevent future complications and mitigate existing complications.
As paraplegia is most often the result of a traumatic injury to the spinal cord tissue and the resulting inflammation, other nerve-related complications can and do occur. Cases of chronic nerve pain in the areas surrounding the point of injury are not uncommon. There is speculation that the "phantom pains" experienced by individuals suffering from paralysis could be a direct result of these collateral nerve injuries misinterpreted by the brain.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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