• Hiromitsu Takaoka, Yawara Eguchi, Keita Shibahashi, Ei Ozone, Shin Teramura, Takuto Takeda, Kyota Kitagawa, Koichi Sai, Yusuke Setojima, Yuta Masaki, Masaya Mizutani, Yuichi Hamabe, Kazuhiro Sugiyama, Sumihisa Orita, Kazuhide Inage, Yasuhiro Shiga, Yuki Shiko, Yohei Kawasaki, and Seiji Ohtori.
• Tertiary Emergency Medical Center, Tokyo Metropolitan Bokutoh Hospital, 4-23-15 Kotobashi, Sumida-ku, Tokyo, 130-8575, Japan. highhilllight@yahoo.co.jp.
• Eur Spine J. 2023 Jan 1; 32 (1): 687468-74.

PurposeThoracolumbar spine injury is frequently seen with high-energy trauma but dislocation fractures are relatively rare in spinal trauma, which is often neurologically severe and requires urgent treatment. Therefore, it is essential to understand other concomitant injuries when treating dislocation fractures. The purpose of this study is to determine the differences in clinical features between thoracolumbar spine injury without dislocation and thoracolumbar dislocation fracture.MethodsWe conducted an observational study using the Japan Trauma Data Bank (2004-2019). A total of 734 dislocation fractures (Type C) and 32,382 thoracolumbar spine injuries without dislocation (Non-type C) were included in the study. The patient background, injury mechanism, and major complications in both groups were compared. In addition, multivariate analysis of predictors of the diagnosis of dislocation fracture using logistic regression analysis were performed.ResultsItems significantly more frequent in Type C than in Non-type C were males, hypotension, bradycardia, percentage of complete paralysis, falling objects, pincer pressure, accidents during sports, and thoracic artery injury (P < 0.001); items significantly more frequent in Non-type C than in Type C were falls and traffic accidents, head injury, and pelvic trauma (P < 0.001). Logistic regression analysis showed that younger age, male, complete paralysis, bradycardia, and hypotension were associated with dislocation fracture.ConclusionFive associated factors were identified in the development of thoracolumbar dislocation fractures.Level Of EvidenceIII.© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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