Inclusion Criteria:  Patients undergoing elective hip arthroscopy. ASA I and II patients aged 18 to 65 years, 70-80 kg,  both sexes.  Exclusion Criteria: Refusal of the patient to receive FICB or to participate in the study, Impaired renal or hepatic functions, Asthmatic patients. Patients with multiple traumas. Obese patients with Body Mass Index > 35. Allergy to study drugs. Patients with local infection. Previous surgery at the injection area. Bleeding disorders. Patients on anticoagulant therapy, Addicts. Patients with an opioid analgesic prescription within the last 2 h before the operation. Peripheral neuropathy, Mental and or psychiatric disorders.