Eur Spine J (2018) 27:1401–1407 https://doi.org/10.1007/s00586-017-5371-5 ORIGINAL ARTICLE Adjacent segment degeneration after intervertebral fusion surgery by means of cervical block vertebrae 1 1 2 3 4 Xinlong Ma · Yuren Du · Shuli Wang · Jianxiong Ma · Tao Wang · 1 1 Mingjie Kuang · Baoyi Ma Received: 8 August 2017 / Accepted: 29 October 2017 / Published online: 10 November 2017 © Springer-Verlag GmbH Germany 2017 Abstract Patients and methods We retrospectively diagnosed cervi- Background The prevalence of cervical block vertebrae is cal block vertebrae cases with bony fusions in any segments unknown. Furthermore, there is no consensus on the cause of the cervical spine without intervertebral fusion surgery of adjacent segment degeneration (ASD) after cervical of 33,762 patients reported from 2006 to 2011 in north fusion. China. Then the X-ray of the obtained cases were observed Questions/purposes (1) What is the incidence of cervical and counted. The primary outcome was incidence of ASD block vertebrae? Is there a gender difference? (2) Among according to age and segment. The secondary outcome cervical block vertebrae cases, is ASD related to age and measures were C2–7 angle in fusion (single segment fusion segment? And what is the specific relationship? (3) What of lower cervical vertebra) and control groups
European Spine Journal – Springer Journals
Published: Nov 10, 2017
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