100 patients ASA I-III, undergoing total knee arthroplasty under spinal anesthesia, will be
randomly assigned into one of two groups, namely group A (n=50), where an adductor canal
block and an IPACK block will be performed preoperatively and group B (n=50) where an
adductor canal block only will be performed preoperatively. All patients will receive a
standardized multimodal approach, including pregabalin, paracetamol, and PCA with morphine.
NRS scores in static and dynamic conditions during the first 48 hours postoperatively,
morphine consumption during the first 24 hours postoperatively will be measured and
additionally, patient satisfaction, complications, range of knee motion, moblization,
functionality, delirium ocurence will be recorded. Chronic pain will be assessed in 3 and 6
months postoperatively.