Most children who have Cerebral Palsy have a spastic form. In fact, upwards of 9 in 10 cases of Cerebral Palsy involve spasticity. Spastic Cerebral Palsy is an overarching classification that encompasses the vast majority of subtypes of Cerebral Palsy. This includes spastic quadriplegia, spastic diplegia, spastic hemiplegia, spastic quadriparesis, spastic diparesis and spastic hemiparesis.
The chief characteristics of all forms of spastic Cerebral Palsy include muscular hypertonia (abnormal tightness in muscles), which often causes jerky movements, joint deformities, motion restriction and tremors.