Definition of Cerebral Palsy (CP) is important for every medical student. It is also important for orthopedic and pediatric surgeons.
- Definition of Cerebral Palsy
group of permanent disorders of the development of movement and posture, causing activity limitation, that are attributed to non-progressive disturbances that occur in the developing fetal or infant brain. - Term History
term coined by Freud. First described by William Little in 1862.

3. Incidence
incidence of 2–3 per 1000 live births increasing to 40–100 per 1000 live births in premature babies and those of low/very low birth weight
4. clinical manifestations of CP:
- depend on which part and how much of the brain are involved.
- Although the brain injury is static, peripheral manifestations are often not static
5. In all the cases:
- Spinal cord and muscles are structurally and biochemically normal
- Brain lesion is fixed and non-progressive.
- All progressive neurodegenerative disorders are excluded from definition
- There is motor impairment only
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