Introduction
femoral nerve block, postoperative pain, TKA, pain
SECONDARY
Every year, the number of total knee arthroplasties (TKA) is increasing [The anterior innervation of knee joint seems to be the most relevant for postoperative pain after TKA. The femoral nerve provides the anteromedial sensory innervation of the knee; femoral nerve block (FNB) has been shown to be an effective and well-established analgesic technique for TKA [The primary objective of this prospective, double-blinded, randomized controlled trial (RCT) was to compare quadriceps muscle strength preservation between three PNB techniques in TKA: FNB vs FTB vs ACB. The secondary objective was to analyze pain control and functional outcomes.