The RA approach seems to be beneficial for reducing operation time and hospital stay, and for stabilization of the learning curve. Postoperative bleeding should be considered during the period of early experience for the RA approach.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.