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Retrospective Study
Copyright: ©Author(s) 2026.
World J Orthop. Oct 18, 2026; 17(10): 125014
Published online Oct 18, 2026. doi: 10.5312/wjo.125014
Figure 1
Figure 1  The participant flow chart of this study.
Figure 2
Figure 2 Overview of spondyloptosis in this series. A: The double-vertebra sign on imaging indicates spondyloptosis; B: Definite vertebra location and distribution among patients in this cohort.
Figure 3
Figure 3 Representative case of cervical spondyloptosis. A 63-year-old man sustained an injury after falling from a height. A and B: Preoperative radiographs and computed tomography (CT) showed C7 spondyloptosis (orange arrow); C: Magnetic resonance imaging demonstrated spinal cord compression. The patient subsequently underwent combined anterior–posterior fixation and discectomy with bone grafting (orange arrow); D and E: Postoperative radiographs and CT images demonstrated vertebral reduction and favorable internal fixation (orange arrow).
Figure 4
Figure 4 Representative case of thoracic spondyloptosis. A 55-year-old man was injured in a motor vehicle accident. A and B: Preoperative radiographs and computed tomography (CT) images showed T11 spondyloptosis (orange arrow); C: Magnetic resonance imaging showed spinal cord compression and soft-tissue swelling. The patient subsequently underwent posterior pedicle screw fixation (orange arrow); D and E: Postoperative radiographs and CT images demonstrated vertebral reduction and favorable internal fixation (orange arrow).
Figure 5
Figure 5 Representative case in lumbar spondyloptosis. A 50-year-old man was injured in a motor vehicle accident. A: Preoperative radiographs (orange arrow); B: Computed tomography (CT) image showed L3 spondyloptosis with double-vertebra sign. The patient subsequently underwent posterior pedicle screw fixation (orange arrow); C and D: Postoperative radiographs and CT images demonstrated vertebral reduction and favorable internal fixation (orange arrow).
Figure 6
Figure 6 Presentation of preoperative, postoperative, and follow-up American Spinal Injury Association scale. ASIA: American Spinal Injury Association.


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