Fig 1. Overview of the calculated final adult height predictions compared to the true adult height (FH_True).

First, the chronological age at the time of surgery was used to predict the final adult height (FH_{Pre_P}) using the Paley et al. (P) multiplier table, the multiplier according to Sanders–Greulich and Pyle (SGP), and the multiplier according to Sanders–peak height velocity (PHV). Second, skeletal age was determined using the Modified Fels Knee System (FKS) and the Abbreviated Modified Fels Knee System (aFKS) method. SA at the time of surgery was used to predict the final size (FH_Pre) using two different multiplier tables (SGP and PHV). The dotted line shows the mean true adult height. Data represent medians with interquartile ranges. Whiskers represent Min to Max values.