The MEV of 0.5% Ropivacaine in Ultrasound-guided SASIS-FICB
Conditions
Interventions
- PROCEDURE: Ultrasound-guided Supra-anterior Superior Iliac Spine Fascia Iliaca Compartment Block (SASIS-FICB) with 0.5% ropivacaine
- DRUG: different volume of 0.5% ropivacaine
Sponsor
Peking Union Medical College Hospital