Correspondence should be sent to Dr. Josephine Berger-Groch, Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany. E-mail:

E-mail Address: [email protected]

https://orcid.org/0000-0003-4952-8271

Department of Trauma Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Department of Paediatric Orthopaedic Surgery, Orthopaedic Hospital Bad Bramstedt, Bad Bramstedt, Germany.