Epidemiology


  • Most common motor disability in children

Etiology


Pathophysiology


Spastic cerebral palsy may be caused by white matter necrosis (seen in this patient as periventricular leukomalacia), which leads to a loss of descending inhibitory control from the upper motor neurons. This results in muscle overactivity, leading to increased tone and hyperreflexia.

Clinical features


  • All types
    • Intellectual disability (50%)
    • Seizure disorder (35%–50%)
    • Upper motor neuron signs (e.g., spasticity, hyperreflexia, clonus)
    • Behavioral difficulties
    • Developmental delay, particularly motor function (e.g., rolling over from back to belly, sitting independently, crawling).
    • Attention deficit hyperactivity disorder
    • Spastic type
      • ↑ Muscle tone in one or more limbs
      • ↑ Deep tendon reflexes
      • Persistence of primitive reflexes (e.g., positive Babinski sign)

Warning

Definite hand preference before 1 year of age suggests one-sided muscle weakness and is a red flag for hemiplegia.

Diagnostics


Treatment


  • Pharmacological management