Quadraplegic
| Tetraplegia | |
|---|---|
| Specialty | Neurosurgery |
| Classification | |
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| External resources |
Tetraplegia, also known as quadriplegia, is paralysis caused by illness or injury that results in the partial or total loss of use of all four limbs and torso; paraplegia is similar but does not affect the arms. The loss is usually sensory and motor, which means that both sensation and control are lost. Tetraparesis or quadriparesis, on the other hand, means muscle weakness affecting all four limbs. It may be flaccid or spastic.
The condition of paralysis affecting four limbs is alternately termed tetraplegia or quadriplegia. Quadriplegia combines the Latin root quadra, for "four", with the Greek root πληγία plegia, for "paralysis". Tetraplegia uses the Greek root τετρα tetra for "four". Quadriplegia is the common term in North America; tetraplegia is more commonly used in Europe.
Although the most obvious symptom is impairment to the limbs, functioning is also impaired in the torso. This can mean a loss or impairment in controlling bowel and bladder, sexual function, digestion, breathing and other autonomic functions. Furthermore, sensation is usually impaired in affected areas. This can manifest as numbness, reduced sensation or burning neuropathic pain.
Secondarily, because of their depressed functioning and immobility, people with tetraplegia are often more vulnerable to pressure sores, osteoporosis and fractures, frozen joints, spasticity, respiratory complications and infections, autonomic dysreflexia,deep vein thrombosis, and cardiovascular disease.
Severity depends on both the level at which the spinal cord is injured and the extent of the injury.
An individual with an injury at C1 (the highest cervical vertebra, at the base of the skull) will probably lose function from the neck down and be ventilator-dependent. An individual with a C7 injury may lose function from the chest down but still retain use of the arms and much of the hands.
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