Fascia Iliaca Blocks for Total Hip Arthroplasty

Inclusion Criteria: * Male or female, at least 18 years of age at screening * Scheduled for unilateral DAA THA * American Society of Anesthesiologists (ASA) physical status 1, 2 or 3 * Able to demonstrate sensory function by exhibiting sensitivity to light touch, pinprick and cold * Able to ambulate * Able to provide informed consent, adhere to the study visit schedule, and complete all study assessments Exclusion Criteria: * Previous open hip surgery * History of hypersensitivity or idiosyncratic reaction to amide-type local anesthetics * Contraindication to bupivacaine or morphine * Concurrent physical condition that may require analgesic treatment (such as NSAID or opioid) in the postsurgical period for pain that is not strictly related to the hip surgery and which may confound the postsurgical assessments * Initiation of treatment with any of the following medications within 1 month of study drug administration or if the medication(s) are being given to control pain: selective serotonin reuptake inhibitors (SSRIs), selective norepinephrine reuptake inhibitors (SNRIs), gabapentin, pregabalin (Lyrica®), or duloxetine (Cymbalta®) * Body weight \<40 kg (88 pounds) or a body mass index \>44 kg/m2 * Uncontrolled anxiety, psychiatric, or neurological disorder that might interfere with study assessments