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. 2015 Jan 24;10:6. doi: 10.1186/s13018-015-0157-0

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© Li et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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.

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AP and lateral X-ray of the experimental (long arrow) and control (arrow head) group. The probe traveled out of the pedicle through the breakage in the lateral wall in the experimental group.