Children with cerebral palsy have been reported to have poor growth an
d delayed skeletal maturation, but it is unclear whether these effects
are related to the underlying brain injury or to concomitant malnutri
tion. This study was designed to evaluate the effects of hemiplegic ce
rebral palsy on skeletal maturation and growth, with the unaffected si
de used as each subject's control. Bilateral hand-wrist radiographs we
re obtained for 19 children with spastic hemiplegia. Skeletal maturati
on was determined in a blinded fashion with the Fels method. The skele
tal age of the affected (hemiplegic) side was less than that of the un
affected (control) side in all 19 subjects; the mean difference in ske
letal age was 7.3 months (p <0.001). The delay in skeletal maturation
of the affected side correlated linearly with age and upper extremity
function. These findings show that brain injury results in delayed ske
letal maturation independent of malnutrition. This effect on skeletal
maturation may explain, in part, the reason that some children with ce
rebral palsy grow poorly.