PMC7294179_01
Preoperative X-ray cervical spine lateral showing old nonunited fracture of the base of the odontoid process of C2.
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F1
Cervical spine X-ray and computed tomography (CT) studies confirmed an old nonunited displaced fracture at the base of the odontoid process of the C2 vertebra narrowing the spinal canal at the C1-2 level due to displacement of C1 [Figures 1 and 2].
(a) Preoperative computed tomography (CT) cervical spine coronal showing old nonunited fracture at the base of the odontoid process of C2 with narrow spinal canal at C1-2 levels. (b) Preoperative CT cervical spine sagittal showing old nonunited fracture at the base of the odontoid process of C2 with narrow spinal canal at C1-2 levels.
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F2
Cervical spine X-ray and computed tomography (CT) studies confirmed an old nonunited displaced fracture at the base of the odontoid process of the C2 vertebra narrowing the spinal canal at the C1-2 level due to displacement of C1 [Figures 1 and 2].
Preoperative magnetic resonance imaging cervical spine sagittal and axial showing in addition to old odontoid fracture thickening of ligamentous complex surrounding C2 fractured dens, severe canal stenosis, and cord signal changes below craniocervical junction.
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F3
The magnetic resonance imaging of cervical spine showed severe canal stenosis and T2 hyperintense cord signal changes at level of C1 [Figure 3].
(a) Postoperative computed tomography (CT) cervical spine showing posterior decompression of C1 sagittal views. (b) Postoperative sagittal view showing screws and rods in C1, C2, and C3. (c) Postoperative CT axial at level of C1 showing lateral mass screws of C1.
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F4
Routine completion of the Instrumentation and closure followed [Figures 4 and 5].
(a) Postoperative computed tomography (CT) cervical spine three-dimensional (3D) reconstruction view. (b) Postoperative CT cervical spine 3D reconstruction view.
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F5
Routine completion of the Instrumentation and closure followed [Figures 4 and 5].