Table 1

Schemes for classifying the cerebral palsies

*Ataxic CP should be viewed with caution as these conditions may represent an underlying genetic disorder.
†After World Health Organization. International classification of impairments,disabilities and handicaps. Geneva; WHO, 1980
(1) Type of brain injury
Genetic: malformation, deformation, destruction
Metabolic
Infarctive, haemorrhagic
Infective, inflammatory (periventricular leucomalacia: PVL)
Trauma/compression
(2) Timing of brain injury
1st, 2nd, 3rd trimester, perinatal, postnatal
(3) Site of brain injury
Cortical, cortical-subcortical, white matter, basal ganglia, brainstem, cerebellar, midline or global
(4) Topography of signs
Monoplegia, diplegia, triplegia, quadriplegia, double hemiplegia, trunkal
(5) Motor manifestations
Hypotonic, ataxic*, spastic, dystonic, dyskinetic
(6) Functional impact
None, mild, moderate, severe
†{Impairment: disturbance at organ level
Disability: the consequence of impairment for function and activity
Handicap: the disadvantage to the individual arising from impairment and disability