 Methods: This randomized study included 40 patients aged 18 to 60 years old. Local group LG received local infiltration under general anaesthesia; spinal group SG received a subarachnoid block. LG received general anaesthesia with propofol, atracurium and propofol infusion as well as a local infiltration of 20 ml 0.75 ropivacaine. SG received 2 ml of 0.5 hyperbaric bupivacaine. Analgesic supplementation was with 50μg of fentanyl for LG and 1 lidocaine for SG. There were assessed: postoperative pain intensity, sphincter relaxation, motor blockade of lower limbs, time to discharge, analgesic dose over 1 week and adverse effects. 