Time frame: 2 times at Baseline Day [-90 / -7] before and after the presentation of EDOP platform, Surgery Day [-1/0], at discharge from hospital Day [0-7] and at the postoperative visit Day [5-30]
Level of satisfaction and understanding obtained on the satisfaction assessment questionnaire and understanding of the preoperative medical information received for experimental groupe before and after the presentation of the EDOP plateform.
4 Items. Item 1 "quality of information" : 2 questions clear information and understanding in the form of a 5-response Likert scale (from 1: not at all, to 5 Totally).
Item 2 necessity of complementary information, choice between no, a few, many information.
Item 3 "comprehension on different topics explained by the physician conserning the surgery. This item is devided in 6 questions in the form of a 5-response Likert scale (from 1: not at all, to 5 Totally).
Item 4 Visual analog scale rate from 0 not satisfied at all, to 100 totally satisfied.