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Preoperative MRI. Sagittal (A) and axial (B) MRI scans revealed a C6-C7 disc herniation resulting in compression of the left C-7 nerve root (arrow).
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T2-weighted magnetic resonance imaging scans of the cervical spine revealed disc herniation at the C6-C7 levels resulting in compression of the left C-7 nerve root (Figure 1).
Intraoperative fluoroscopy. A prosthesis cervical disc device was implanted at C6-C7.
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Subsequently, a prosthesis cervical disc device (PRESTIGE disc prosthesis; Medtronic Sofamor Danek) was implanted at the C6-C7 level (Figure 2).
Plain radiographs obtained 4 years postoperatively. Lateral (A) imagings showed a complete radiographic fusion of the C6-C7 level with trabecular bone bridging surrounding the cervical disc prosthesis (arrows). No motion of C6-C7 was observed on flexion (B) and extension (C) imagings.
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Plain radiographs indicated complete osseous fusion of the C6-C7 levels with trabecular bone bridging surrounding the cervical disc prosthesis, and dynamic imaging showed no motion (Figure 3), which was further confirmed by computed tomography (CT) (Figure 4).
Computed tomography confirmed the cervical disc prosthesis was surrounded bone bridging (arrows).
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Plain radiographs indicated complete osseous fusion of the C6-C7 levels with trabecular bone bridging surrounding the cervical disc prosthesis, and dynamic imaging showed no motion (Figure 3), which was further confirmed by computed tomography (CT) (Figure 4).