Adductor Canal Block Versus Femoral Nerve Block and Quadriceps Strength: A Randomized, Double-blind, Placebo-Controlled, Crossover Study in Healthy Volunteers

Background:The authors hypothesized that the adductor canal block (ACB), a predominant sensory blockade, reduces quadriceps strength compared with placebo (primary endpoint, area under the curve, 0.5–6 h), but less than the femoral nerve block (FNB; secondary endpoint). Other secondary endpoints wer