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Spastic quadriplegia, also known as spastic tetraplegia, is a subset of spastic cerebral palsy that affects all four limbs (both arms and legs). Compared to quadriplegia , spastic tetraplegia is defined by spasticity of the limbs as opposed to strict paralysis .
Spastic cerebral palsy affects the motor cortex [110] of the brain, a specific portion of the cerebral cortex responsible for the planning and completion of voluntary movement. [111] Spastic CP is the most common type of overall cerebral palsy, representing about 80% of cases. [112] Botulinum toxin is effective in decreasing spasticity. [10]
Spastic cerebral palsy is caused by malformation of or damage to the parts of the brain that control movement. [12] What exactly makes some children susceptible to such brain damage is often unknown but it is believed that cerebral palsy may be the result of causal pathways, or chains of events that cause or increase the likelihood of brain injury. [13]
In children, the most common cause is a stroke of the ventral pons. [9]Unlike persistent vegetative state, in which the upper portions of the brain are damaged and the lower portions are spared, locked-in syndrome is essentially the opposite, caused by damage to specific portions of the lower brain and brainstem, with no damage to the upper brain.
Spastic hypertonia involves uncontrollable muscle spasms, stiffening or straightening out of muscles, shock-like contractions of all or part of a group of muscles, and abnormal muscle tone. It is seen in disorders such as cerebral palsy, stroke, and spinal cord injury. Rigidity is a severe state of hypertonia where muscle resistance occurs ...
Spastic tetraplegia, thin corpus callosum, and progressive microcephaly (often referred to by its acronym SPATCCM) is a rare autosomal recessive disease caused by mutations in the SLC1A4 gene encoding the ASCT1 protein.
The cause of spasticity is thought to be where an imbalance occurs in the excitatory and inhibitory input to α motor neurons caused by damage to the spinal cord and/or central nervous system. The damage causes a change in the balance of signals between the nervous system and the muscles, leading to increased excitability in muscles.
Tetraplegia, also known as quadriplegia, is defined as the dysfunction or loss of motor and/or sensory function in the cervical area of the spinal cord. [1] A loss of motor function can present as either weakness or paralysis leading to partial or total loss of function in the arms, legs, trunk, and pelvis.