case_images: PMC11809398_01
case_images: Cervical x-ray (A) Anteroposterior view. (B) Lateral view.
case_images: ORR-17-55-g0001.jpg
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case_images: Radiography revealed that the cervical spine was turned and tilted to the right (Figure 1A and B).
case_images: CT scan images. (A) Coronal view showing asymmetry between the odontoid process and lateral mass of the atlas. (B) Sagittal view showing incongruency of C1-C2 joint. (C) Axial view showing no fracture of C1 or tip of the Denis.
case_images: ORR-17-55-g0002.jpg
case_images: PMC11809398_01_ORR-17-55-g0002.jpg
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case_images: CT scan of the coronal images showed asymmetry between the odontoid process and lateral mass of the atlas (Figure 2A). C1-C2 joint (Figure 2B), and in the axial cuts, showing no fracture of C1 or the Denis (Figure 2C). CT reconstruction showed type IV atlantoaxial rotatory subluxation according to the Fielding and
case_images: CT reconstruction Image showing Type IV Atlantoaxial subluxation.
case_images: ORR-17-55-g0003.jpg
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case_images: Hawkins classification (Figure 3). His blood test results, including complete blood count and inflammatory markers, were within the normal ranges.
case_images: Intraoperative images showing reduced C1-C2 joint. (A) lateral view. (B) anteroposterior view.
case_images: ORR-17-55-g0004.jpg
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case_images: The reduction was confirmed using an image intensifier (Figure 4A and B).
case_images: Post operative x-ray. (A) Anteroposterior view. (B) Lateral view.
case_images: ORR-17-55-g0005.jpg
case_images: PMC11809398_01_ORR-17-55-g0005.jpg
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case_images: The patient was positioned prone on a spine table and underwent posterior C1-C2 fixation (Figure 5A and B).