Abstract
Introduction: Children with cerebral palsy (CP) are shorter than typically growing children (TGC). There is little information in this population regarding puberty. Knowledge of the biological parameters of pubertal growth spurt allows exploration of the timing of puberty.
Objective: The aim of the present study was to estimate final height in cm (FH), age at peak height velocity (APHV) in years, and peak height velocity PHV (cm/y) in children with CP in Argentina.
Methods: This was a cross-sectional study. The sample consisted of boys and girls with CP from 2 to 18 years old from five cities in Argentina between 2016 and 2018. Height 50th percentile for age and sex was calculated using the LMS method. Preece-Baines model 1 (PB1) was used to make inferences about mathematical and biological growth parameters.
Results: 242 children, mean age 9.3 ± 4 years, 149 (61.6%) males, with a confirmed diagnosis of CP were included. According to Gross Motor Function Classification System (GMFCS) FH was reached in boys GMFCS I-III at 164.3 and in GMFCS IV-V at 162.2 cm, APHV was estimated at 13.8 and 15.8 years, and PHV 7.2 and 8.4 cm/y respectively. FH was reached in girls GMFCS I-III at 147.2 cm and in GMFCS IV-V at 147.0 cm, APHV was estimated at 9.7 and 12.0 years, and PHV 7.2 and 8.4 cm/y respectively.
Conclusions: Children with CP in average have slower linear growth rates, reach lower FH and are considerably older at APHV than TGC. PB1 provides satisfactory estimates for APHV, PHV, and FH in children with CP. This study allows insights into pubertal growth parameters and provides references for the assessment of children with CP.
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