title: Reply to Dr Vaughan et al.
authors.affiliation: Department of Anesthesiology St Luke's-Roosevelt Hospital Center New York, NY Department of Anesthesiology Katholieke Universiteit Leuven Leuven, Belgium.
authors.forename: Ali
authors.initials: A
authors.lastname: Shariat
authors.forename: Catherine
authors.initials: C
authors.lastname: Vandepitte
mesh_terms: D019644:Arthroplasty, Replacement, Hip; D005260:Female; D006801:Humans; D008297:Male; D009407:Nerve Block / Q000379:methods*; D010149:Postoperative Pain / Q000517:prevention & control*