title: A response to a commentary by Dr. Daniel J. Cher.
authors.affiliation: Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California,1520 San Pablo St, Suite 3800, Los Angeles, CA 90033, USA.
authors.forename: Kyle
authors.initials: K
authors.lastname: Schoell
authors.affiliation: Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California,1520 San Pablo St, Suite 3800, Los Angeles, CA 90033, USA.
authors.forename: Zorica
authors.initials: Z
authors.lastname: Buser
authors.affiliation: Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California,1520 San Pablo St, Suite 3800, Los Angeles, CA 90033, USA.
authors.forename: Andre
authors.initials: A
authors.lastname: Jakoi
authors.affiliation: Department of Neurological Surgery, Keck School of Medicine,University of Southern California, 1520 San Pablo St, Suite 3800,Los Angeles, CA 90033, USA.
authors.forename: Martin
authors.initials: M
authors.lastname: Pham
authors.affiliation: Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California,1520 San Pablo St, Suite 3800, Los Angeles, CA 90033, USA.
authors.forename: Neil N
authors.initials: NN
authors.lastname: Patel
authors.affiliation: Department of Neurological Surgery, Keck School of Medicine,University of Southern California, 1520 San Pablo St, Suite 3800,Los Angeles, CA 90033, USA.
authors.forename: Patrick C
authors.initials: PC
authors.lastname: Hsieh
authors.affiliation: Department of Neurological Surgery, Keck School of Medicine,University of Southern California, 1520 San Pablo St, Suite 3800,Los Angeles, CA 90033, USA.
authors.forename: John C
authors.initials: JC
authors.lastname: Liu
authors.affiliation: Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California,1520 San Pablo St, Suite 3800, Los Angeles, CA 90033, USA.
authors.forename: Jeffrey C
authors.initials: JC
authors.lastname: Wang