Article History
Received: 24 November 2018
Accepted: 22 January 2019
First Online: 5 February 2019
Compliance with ethical standards
:
: Giovanni D. Tebala, Aderemi Kola-Adejumo and Janelle Yee have no conflicts of interest or financial ties to disclose.
: Formal approval by the Ethical Committee was not deemed to be necessary due to the retrospective nature of the study.
: This article does not contain any study with animals performed by any of the authors.
: Formal written consent to participate in the study was not obtained from participants because the study reports the results of a retrospective analysis of fully anonymised clinical data. All patients were fully informed before the operation and gave written consent.