The three major types of Cerebral Palsy include:
Spastic Cerebral Palsy
This is the most common type of Cerebral Palsy, affecting about 80% of all patients. Also known as Hypertonic Cerebral Palsy, it is caused due to motor cortex damage before, during, or after birth. It affects the brain’s ability to send messages to the body’s muscles. As a result, muscles become stiff and make movement difficult or even impossible — a phenomenon known as spasticity.
Dyskinetic Cerebral Palsy
Dyskinetic Cerebral Palsy accounts for about 6% of all Cerebral Palsy cases. It is caused due to damage in the basal ganglia — the part of the brain responsible for the body’s voluntary movements. Patients with Dyskinetic Cerebral Palsy often exhibit involuntary movements, especially when trying to move voluntarily or when feeling tired or anxious. Dyskinetic movements can be of three types:
- Dystonia: Twisted and repetitive movements
- Athetosis: Slow, stormy movements
- Chorea: Unpredictable, dance-like movements
Ataxic Cerebral Palsy
Ataxic Cerebral Palsy is caused due to damage in the cerebellum, which is the balance center of the brain. It affects the patient’s sense of balance and causes clumsy, uncoordinated movements. As a result, day-to-day activities become difficult, particularly activities that require precise movements such as writing or using cutlery while eating. Patients with Ataxic Cerebral Palsy may even walk with a wide gait where their feet are spread further apart from their hips. This is to try and compensate for their impaired sense of balance.