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Research ArticleOther and Special Categories

Case Report—Traumatic L5-S1 Instability: Are Upright Radiographs Potentially Dangerous?

Andrew B. Rees, Andrew J. Croft, Emil Varas-Rodrguez, Byron F. Stephens and Amir M. Abtahi
International Journal of Spine Surgery April 2023, 17 (2) 324-332; DOI: https://doi.org/10.14444/8432
Andrew B. Rees
1 Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
MD
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Andrew J. Croft
1 Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
MD
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Emil Varas-Rodrguez
1 Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
MPH
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Byron F. Stephens
1 Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
2 Center for Musculoskeletal Research, Vanderbilt University Medical Center, Nashville, TN, USA
3 Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
MD, MSCI
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Amir M. Abtahi
1 Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
2 Center for Musculoskeletal Research, Vanderbilt University Medical Center, Nashville, TN, USA
3 Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
MD
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    Figure 1

    Initial computed tomography imaging.

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    Figure 2

    Upright imaging in Jewett brace showing L5-S1 dislocation.

  • Figure 3
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    Figure 3

    Repeated computed tomography imaging demonstrating L5-S1 dislocation.

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    Figure 4

    Sagittal computed tomography (CT) demonstrating the left S1 facet fracture and right facet before and after dislocation.

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    Figure 5

    Postoperative plain radiographs.

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    Figure 6

    The 3-month follow-up plain radiographs.

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    Figure 7

    Injuries commonly associated with lumbosacral dislocations.

  • Figure 8
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    Figure 8

    The various types of pars fractures seen in lumbosacral dislocations.

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International Journal of Spine Surgery
Vol. 17, Issue 2
1 Apr 2023
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Case Report—Traumatic L5-S1 Instability: Are Upright Radiographs Potentially Dangerous?
Andrew B. Rees, Andrew J. Croft, Emil Varas-Rodrguez, Byron F. Stephens, Amir M. Abtahi
International Journal of Spine Surgery Apr 2023, 17 (2) 324-332; DOI: 10.14444/8432

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Case Report—Traumatic L5-S1 Instability: Are Upright Radiographs Potentially Dangerous?
Andrew B. Rees, Andrew J. Croft, Emil Varas-Rodrguez, Byron F. Stephens, Amir M. Abtahi
International Journal of Spine Surgery Apr 2023, 17 (2) 324-332; DOI: 10.14444/8432
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Keywords

  • lumbopelvic dislocation
  • lumbar jumped facets
  • L5-S1 fracture dislocation
  • case report

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