aDepartment of Orthopaedics, Hospital del Mar, Universitat Autònoma Barcelona, Barcelona, Spain;

bIMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain;

cDepartment of Infectious Diseases, Hospital del Mar, Universitat Autònoma Barcelona, Barcelona, Spain; and

dDepartment of Anesthesiology, Hospital del Mar, Universitat Autònoma Barcelona, Barcelona, Spain.

Reprints: Alexandre Coelho, MD, Ptge. de Sant Josep la Muntanya, 12, 08024 Barcelona, Spain (e-mail: [email protected]).

The authors report no conflict of interest.

The study was conducted following the guidelines of the Declaration of Helsinki, and it was approved by the institutional review board of the hospital.