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. 2020 Mar 10;15:99. doi: 10.1186/s13018-020-01616-7

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 4 — A 28-year-old male with L5/S1 lesions was managed by surgery with combined posterior-anterior approaches. The preoperative imaging data (a X-ray, b CT, and c MRI) showed severe vertebral destruction at L5/S1. The postoperative (d) radiography showed that internal fixation instrument was in good position. e CT and f X-ray indicated solid bony fusion at 12 months after surgery. At the 48 months after surgery, g CT and h radiography showed solid bony fusion without signs of fixation failure. At the final follow-up (96 months after surgery), i CT illustrated solid bony fusion and no obvious angle loss with good fixation position. j The radiograph showed the removal of internal fixation instrument and satisfied sagittal sequence