Retraction to: Surgical Endoscopy (2019) 33:401–410 https://doi.org/10.1007/s00464-018-6307-9

The authors have retracted this article [1]. After publication concerns were raised about the data presented. The authors have reviewed their records and have identified errors in the transcription of data collected for the study to their database which make the results and conclusions unreliable. Miguel Angel Carbajo was unaware of the publication of this article. All authors agree with this retraction.