“…Namely, it has already been shown that 1 % ropivacaine (20 ml), used for the interscalene brachial plexus block induces a long-lasting postoperative analgesia, much longer than 2 % mepivacaine (20 ml) [28]. Similarly, after continuous infusion or even bolus infiltration of 0.75 % ropivacaine directly to the operative site, a good quality of postoperative analgesia is noticed after the elective arthroscopic surgery [29] or rib bone graft harvesting [13]. A good level of postoperative analgesic effect is also noticed in dentistry [21,22], although not so much when ropivacaine had been used for infiltration anesthesia [23].…”