Clinical Trial – Comparison of Two Regional Technics In Knee Artroplasty
Purpose: This prospective, randomised, controlled, single-blind, multicentre study was
designed to investigate the effects of peripheral nerve block methods (applied using
unilateral spinal anaesthesia [USA] on elderly patients scheduled to undergo total knee
arthroplasty) on perioperative haemodynamic parameters and the postoperative analgesia
period.
Materials and Methods: Sixty patients in the American Society of Anesthesiologists (ASA)
Physical Status II-III group were randomly divided into two groups. Spinal anaesthesia was
performed in the USA group, in the lateral position through the intervertebral space, with 2
ml of hyperbaric bupivacaine (L4-L5 or L3-L4); 0.5% bupivacaine hydrochloride and 2%
lidocaine were combined for the psoas compartment-sciatic (PCS) group, and the mixture was
used for psoas compartment block (PCB) and sciatic nerve block. The haemodynamic parameters
were recorded every 5 minutes until the end of the preoperative and perioperative operation
periods and postoperative first analgesic application time.