Funding for this research was provided by:
Deutsche Arthrose Stiftung
Received: 21 June 2020
Accepted: 11 November 2020
First Online: 18 November 2020
Ethics approval and consent to participate
: Zurich cantonal ethics committee approval (BASEC-Nr. 2018–01555) and patient consent to participate signed by the parents or legal guardian was obtained.The treatment method of PSI guided osteotomies has already been approved for clinical use prior to this study.
: Not applicable.
: There are no financial or non-financial competing interests.