Overview Dexamethasone Vs. Dexmedetomidine for ESPB in Pain Management After Knee Arthroplasty Status: RECRUITING Trial end date: 2025-09-30 Target enrollment: Participant gender: Summary Effect of perineurial dexamethasone and dexmedetomidine on erector spinal plane block duration for knee arthroplastyPhase: PHASE4 Details Lead Sponsor: Poznan University of Medical SciencesTreatments: DexamethasoneDexmedetomidineSodium Chloride