Since the introduction of the PediatrOS® FlexTack® Hemi-Epiphysiodesis implants in 2013 and the PediatrOS® RigidTack® Epiphysiodesis implants in 2015, these product systems have successfully established themselves for the correction of varus/valgus deformities and the adjustment of leg length discrepancies in children and adolescents. They have become an alternative to the conventionally approved implants in surgical treatment.