Received: 27 March 2018
Accepted: 30 May 2018
First Online: 26 October 2018
Ethics approval and consent to participate
: This study was approved by the Comité de Ética del Hospital de Pediatria Prof. Dr. Juan P. Garrahan (IRB).
: Spine Surgery National Society consent was previously obtained in order to address all surgeons.
: The authors declare that they have no competing interests.
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