Erratum to: Surg Endosc DOI 10.1007/s00464-012-2724-3

On the second page, second paragraph, fourth to fifth line, add the word “information” after “additional”.

On that same page, right column, second paragraph, second line, add the word “be” after “would”.

On the same page, right column, last paragraph, seventh line, delete the phrase “shifted to recommenting has”.