Inclusion Criteria:  Anterior total hip arthroplasty for hip osteoarthritis Surgical hip dislocation for femoro-acetabular impingement (type cam-/pincer) Age 16-85 years American Society of Anesthesiologists (ASA) physical status 1 to 3  Exclusion Criteria:  Patient refusal/no informed consent Inability to give informed consent Lateral approach for total hip arthroplasty Bilateral procedure Additional osteotomies of the femur and/or acetabulum Previous hip & pelvis surgery Chronic opioid users Known allergy or intolerance to medications used in the trial (local anesthetic, opioid) Infection at the injection site Body mass index > 40kg/m2 Spinal anesthesia