Krizia Amoroso1,2, Alexander P Hughes2, Andrew A Sama2, Frank P Cammisa2, Jennifer Shue2 and http://orcid.org/0000-0002-2496-7174Ellen M Soffin1 1Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New York, USA 2Orthopaedic Surgery, Spine Care Institute, Hospital for Special Surgery, New York, New York, USA Correspondence to Dr Ellen M Soffin, Department of Anesthesiology, Critical Care and Pain Management, Hospital for Special Surgery, New York, New...