Received: 9 January 2019
Accepted: 9 October 2019
First Online: 29 October 2019
Ethics approval and consent to participate
: The Rizzoli Orthopaedic Institute Ethics Comitee was consulted prior to undertaking this study. Written informed consent for participating in this study was obtained from all patients and patient’s parents.
: This manuscript has the consent of the patient and patient’s parent for the use of her data. The authors obtained the written consent of the patient and patient’s parent for the publication of the data and images that appear in the article.
: The authors declare that they have no competing interests.