Methods: After obtaining ethics committee approval and written informed consent, 71 patients with American Society of Anesthesiologists (ASA) physical status I-III and aged between 40 and 75 years were enrolled to the study. Diabetic patients were included in Group DM and non-diabetics were included in Group NODM. All received ultrasound-guided ABPBs with the mixture of 10 mL lidocaine 2% and 20 mL bupivacaine 0.5%. Postoperatively, patients were administered paracetamol as rescue analgesics, if numeric rating scale (NRS) was ≥4. Our primary outcome was sensory block duration, and secondary outcomes were sensory and motor block onset times, motor block duration, time-to-first-pain (numeric rating scale (NRS) ≥4), postoperative NRS scores, and rescue analgesic consumption (NRS) ≥4) through the postoperative first 2 days. All outcomes were assessed by a blinded investigators.