title: What matters most.
authors.forename: Rajiv
authors.initials: R
authors.lastname: Gandhi
authors.forename: Spencer S
authors.initials: SS
authors.lastname: Liu
authors.forename: Richard
authors.initials: R
authors.lastname: Brull
mesh_terms: D000058:Accidental Falls / Q000517:prevention & control*; D000765:Anesthesia, Conduction; D000779:Anesthetics, Local / Q000008:administration & dosage*; D019645:Arthroplasty, Replacement, Knee; D019317:Evidence-Based Medicine / Q000379:methods*; D005267:Femoral Nerve; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D053580:Muscle Strength / Q000187:drug effects*; D009407:Nerve Block / Q000379:methods*; D011343:Procaine / Q000008:administration & dosage / Q000031:analogs & derivatives*; D052097:Quadriceps Muscle / Q000187:drug effects*; D012107:Research Design; D018084:Ultrasonography, Interventional
chemical_list: D000779:Anesthetics, Local; D011343:Procaine; C004616:chloroprocaine