title: Reply to Drs Valdés-Vilches and Sánchez-del Águila.
authors.affiliation: Montreal General Hospital McGill University Montreal, Quebec, Canada.
authors.forename: De Q H
authors.initials: DQ
authors.lastname: Tran
authors.forename: Roderick J
authors.initials: RJ
authors.lastname: Finlayson
mesh_terms: D002968:Clavicle / Q000601:surgery*; D005592:Fracture Fixation; D050723:Fractures, Bone / Q000601:surgery*; D006801:Humans; D009407:Nerve Block; D010149:Postoperative Pain / Q000517:prevention & control*; D020069:Shoulder Pain / Q000517:prevention & control*