Retraction Note: European Spine Journal (2020) 29:1813–1822 https://doi.org/10.1007/s00586-020-06466-9

The Editor-in-Chief has retracted this article because it overlaps with an unpublished manuscript by different authors that was submitted to another journal. The unpublished manuscript was submitted to the other journal before this article was submitted to the European Spine Journal.

ZhanWen Zhou agrees to this retraction. Jami Sayed Abdulla, Jiandang Shi, Brotendu Shekhar Roy and Changhao Liu have not responded to any correspondence from the publisher about this retraction.