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Article History

Received: 29 November 2019

Accepted: 9 June 2020

First Online: 30 June 2020

Ethics approval and consent to participate

: An approval from the research ethics committee of the Faculty of Medicine, Ain Shams University, with reference number 000017585 was obtained before the start of the study.

: Consent for surgery and participation in the study of the patients were obtained before surgery. Consent for publication was not required from 29 patients as details, images and videos of each individual participant were not used in manuscript; only one participant was consented for publication as his data and images were included.

: All co-authors have seen and agreed with the contents of the manuscript and there is neither a financial nor a non-financial competing interest to report.