Prognostic value of gross motor function measure to evaluate the severity of cerebral palsy.

Early adequate evaluation of motor development and prognosis of degree of long-term motor disability is very important not only for parents, but also for correct management of goal oriented rehabilitation treatment and for planning of preventive measures. To estimate the value of Gross Motor Function Measure in evaluation of severity of cerebral palsy, for prognostic counseling with parents and for planning of clinical management. Total of 397 children aged 1 to 12 years at study onset with cerebral palsy were observed for up to 3,5 years during the period from 2002 to 2005. Children were assessed by GMFM-88 (Gross Motor Function Measure), by GMFCS (Gross Motor Function Classification System). Over the course of the study 397 children had a total of 6875 GMFM assessments, or an average of 17,3 observations per child. The study revealed significant differences between developmental limit of each level of gross motor function. Children with lower motor development potential reach their limit more quickly, than children with higher potentials. Children with cerebral palsy reach about 90% of their gross motor function by around age 5 years or younger, depending on their GMFCS level. After this age intervention programs have to address increasing independent activity and to promote participation of children with disabilities.