Inadequate perioperative pain is, unfortunately, frequent, and has clinically relevantconsequences, including decreased patient satisfaction, delayed postoperative mobilization, development of chronic postoperative pain, a higher likelihood of experiencing cardiac and pulmonary complications, and increased morbidity andmortality.1 Impediments to postoperative mobilization are especially harmful in orthopedic surgery as better outcomes have been clearly demonstrated in patients whobegin ambulating more quickly.2 However, orthopedic surgery is, in general, one themost painful types of surgery performed