Table 1 Pain protocol for group 1 (FNB group)

Postoperative pain medication:

 Ibuprofen 600 mg 1-1-1 per os

 Metamizole 500 mg 1-1-1 per os

 Oxycodone 10 mg = 1-0-1 (3 days), per os

Pain catheter:

 At posing: ropivacaine 0.2% 20 ml + prilocaine 1% 20 ml intravenous

 Every 6 h up to max. 72 h post-surgery: ropivacaine 0.2% 20 ml intravenous