Overview Dexmedetomidine as Adjuvant for FNB in TKA Status: Completed Trial end date: 2018-11-10 Target enrollment: Participant gender: Summary The aim of the study was to find out whether addition of dexmedetomidine to lower concentration of ropivacaine preoperatively in femoral nerve block (FNB) would intensify analgesia and preserve quadriceps muscle strength after TKA. Phase: N/A Details Lead Sponsor: First Affiliated Hospital, Sun Yat-Sen UniversityTreatments: DexmedetomidineMorphineRopivacaine