@article{7d0b2db074b942f79c2ba331b0ef5eff,
title = "Two-Year Results of the Prospective Spine Treatment Outcomes Study: Analysis of Postoperative Clinical Outcomes Between Patients with and without a History of Previous Cervical Spine Surgery",
abstract = "Objective History of previous cervical spine surgery is a frequently cited cause of worse outcomes after cervical spine surgery. The purpose of this study was to determine any differences in clinical outcomes after cervical spine surgery between patients with and without a history of previous cervical spine surgery. Methods A multicenter prospective database was reviewed retrospectively to identify patients with cervical spondylosis undergoing surgery with a minimum 2-year follow-up. Patients were divided into 2 groups: patients with (W) or without (WO) previous history of cervical spine surgery. Statistical analyses of Health-Related Quality of Life scores were analyzed with statistical software to fit linear mixed models for continuous longitudinal outcome. Results A total of 1286 patients (377 W, 909 WO) met criteria for inclusion. Overall, patients in both groups experienced an improvement in their Health-Related Quality of Life scores. However, patients in the W group had significantly decreased improvement compared with WO patients in the Neck Disability Index score and the following SF-36 domain scores: Role Physical, Bodily Pain, General Health, Vitality, Social Functioning, Health Transition, and Physical Component Summary at all time points (P < 0.05). There was no statistically significant difference between the W and WO groups in operative time, estimated blood loss, length of stay, or complications (P > 0.05). Conclusions Patients with a history of previous cervical spine surgery had inferior improvement in quality of life outcome scores. Patients with a history of previous surgical intervention who elect to undergo subsequent surgeries should be appropriately counseled about expected results.",
keywords = "Cervical, Cervical spine surgery, Cervical spondylotic myelopathy, HRQOL, History, Revision surgery, Spondylosis",
author = "Kris Radcliff and Cyrus Jalai and Shaleen Vira and Sun Yang and Boniello, {Anthony J.} and Kristina Bianco and Cheongeun Oh and Michael Gerling and Gregory Poorman and Horn, {Samantha R.} and Buza, {John A.} and Isaacs, {Robert E.} and Vaccaro, {Alexander R.} and Passias, {Peter G.}",
note = "Funding Information: Conflict of interest statement: Dr. Radcliff reports personal fees from Globus Medical, 4 Web Medical, Medtronic Advanced Energy, DePuy, Globus, LDR, Orthopedic Sciences, Inc., NuVasive, and NEXXT Spine and grants from Pacira Pharmaceuticals, outside the submitted work. Non-financial—Boards of Directors: Association for Collaborative Spinal Research and Scientific Advisory Board: 4 Web Medical, outside the submitted work. Dr. Isaacs reports grants and personal fees from NuVasive, Inc., personal fees from Association for Collaborative Spine research, and serves as Scientific Advisor for Providence Medical Technology, outside the submitted work. Dr. Vaccaro reports personal fees from Medtronics, Striker Spine, Biomet Spine, Globus, Aesculap, Thieme, Jaypee, Elseviere, Taylor Francis, DePuy, Medtronics, Gerson Lehrman Group, Guidepoint Global, Medacorp, Innovative Surgical Design, Orthobullets, Expert testimony, Ellipse, Vertex, and stock ownership in Replication Medica, Paradigm Spine, Stout Medical, Progressive Spinal Technologies Advanced Spinal Intellectual Properties, Spine Medica, Computational Biodynamics, Spinology, Small Bone Innovations, Cross Current, In Vivo, Flaghsip Surgical, Cytonics, Bonovo Orthopaedics, Electrocore, Gamma Spine, Location Based Intelligence, FlowPharma, R.S.I, Rothman Institute and Related Properties, Innovative Surgical Design, and Avaz Surgical, outside the submitted work. Non-financial—Scientific Advisory Board for AO Spine, Innovative Surgical Design, and Association for Collaborative Spine Research, outside the submitted work. Dr. Passias reports consultancy from Medicrea & SpineWave and personal fees from Zimmer Biomet, and a grant from CSRS, outside the submitted work. The remaining authors have no conflicts to report. Publisher Copyright: {\textcopyright} 2017 Elsevier Inc.",
year = "2018",
month = jan,
doi = "10.1016/j.wneu.2017.09.122",
language = "English (US)",
volume = "109",
pages = "e144--e149",
journal = "World Neurosurgery",
issn = "1878-8750",
publisher = "Elsevier Inc.",
}