Berg, Linda http://orcid.org/0000-0002-3100-6793
Thoresen, Hanne
Neckelmann, Gesche
Furunes, Håvard
Hellum, Christian
Espeland, Ansgar
Article History
Received: 29 August 2018
Revised: 31 December 2018
Accepted: 25 January 2019
First Online: 22 February 2019
Compliance with ethical standards
:
: The scientific guarantor of this publication is Ansgar Espeland.
: The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
: No complex statistical methods were necessary for this paper.
: Written informed consent was obtained from all subjects (patients) in this study.
: Institutional Review Board approval was obtained.
: Some study subjects or cohorts have been previously reported in Spine 2018 on adjacent level disc degeneration at 8-year follow-up of these RCT cohorts [CitationRef removed]. That publication contained no data on facet arthropathy. Other publications from the original RCT included baseline and 2-year data [CitationRef removed] and also reliability data [CitationRef removed, CitationRef removed], but not any CT data and not any data on facet arthropathy evaluated using the same system as in the present manuscript. The most relevant earlier reports are referenced in the manuscript [CitationRef removed, CitationRef removed, CitationRef removed, CitationRef removed].
: • retrospective• cross-sectional study• multicenter study