Understanding Cerebral Palsy: A Guide to Classification and Treatment Options
Cerebral Palsy (CP) is a group of neurological disorders that affect movement, muscle tone, and coordination. It can be caused by damage to the developing brain before, during, or after birth. Although cerebral palsy is a non-progressive disorder, it can affect a person’s mobility, communication, and daily living activities .
According to Northern Territory Government information and services, Cerebral Palsy in Australia is the most common physical disability in children, with an estimated 34,000 people affected. Early intervention and therapy can improve outcomes and quality of life for those with CP.
There are five main types of cerebral palsy and each type of CP is characterised by specific symptoms and affects different areas of the body.
Ataxic CP is less common, affecting around 5–10% of people with CP. It is caused by damage to the cerebellum, which is responsible for coordinating movement and balance. People with ataxic CP have poor balance and coordination, and they may have difficulty with fine motor skills, such as writing or buttoning clothes. They may also have a wide-based gait and may sway or stumble when walking.
Athetoid CP, also known as dyskinetic CP, affects around 10–20% of people with CP. It is caused by damage to the basal ganglia, which is responsible for controlling movement. People with athetoid CP have involuntary movements that can be slow and writhing or fast and jerky. They may also have difficulty controlling their posture and may have trouble sitting upright or holding their head steady.
Hypotonic CP is a rare form of CP, affecting less than 5% of people with CP. It is caused by damage to the cerebellum or the brainstem, which can affect muscle tone and coordination. People with hypotonic CP have low muscle tone, which means their muscles are floppy and weak. They may also have difficulty with posture and may have trouble sitting upright or holding their head steady.
Spastic CP is th e most common type, affecting around 70–80% of people with CP. It is caused by damage to the motor cortex of the brain, which controls voluntary movement. People with spastic CP have increased muscle tone, which means their muscles are constantly contracted and can be stiff and difficult to move. They may also experience muscle spasms, especially when trying to move quickly. Spastic CP can affect one or both sides of the body, and it can also affect the legs, arms, or both.
Mixed type CP is a combination of two or more types of CP. For example, a person may have spastic and athetoid CP, or ataxic and hypotonic CP. The symptoms and severity of mixed type CP can vary depending on the types of CP involved.
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