Colorectal Unit, Department of Surgery, Michallon University Hospital, CS 10 217, 38 043, Grenoble Cedex, France

J.-L. Faucheron & M. Cohen-Bacry

University Grenoble Alps, UMR 5525, CNRS, TIMC-IMAG, 38000, Grenoble, France

J.-L. Faucheron

Department of Gynecology and Obstetrics, Hôpital Couple Enfant, 38000, Grenoble, France

M. Cohen-Bacry & D. Riethmuller

J-LF: conception, design, data collection, analysis and interpretation manuscript author, drafted the article and revised it critically for important intellectual content, provided care for study patient, and final approval of the version to be published. MC-B: data collection, analysis and interpretation, video preparation, video speaker, provided criticism of the manuscript, revised it critically for intellectual content, and final approval of the version to be published. DR: conception, article revision, and final approval of the version to be published.

Correspondence to J.-L. Faucheron.