Cerebral palsy is the commonest physical disability in
childhood yet in many cases the cause remains unknown.
The term “cerebral palsy” describes a group of disorders of
movement and posture due to a defect or lesion of the
immature brain (Bax 1964). Cerebral palsy is a symptom
complex, with various types and degrees of motor
impairment. These disorders become manifest early in life
and are permanent and non-progressive conditions (Bax
1964, Grether et al 1992, Holm 1982, Naeye et al 1989,
Stanley and Watson 1985)