Blinding
LOCAL INFILTRATION
All included patients were randomized by an independent person. A block randomization with four blocks of 50 patients was performed, grouped by the 2 pathways: ERAS and conventional setup group. Randomized group allocation was done by envelope. Only the surgeon knew which group the patient was assigned to (single blinded), this had regulatory reasons (radiation and pharmaceutical regulations in Germany for the use of X-rays and local infiltration analgesia). In addition, the ERAS group and the conventional setup group were treated in different wards at different floors to eliminate contact and exchange.