case_images: PMC10159283_01
case_images: Latest postoperative computed tomography (CT) of sagittal-view (a) and axial-view (b) showed C1 laminectomy, cervical laminoplasty, anterior cervical fusion, and no anterior arch fracture of C1. (b) was at the level of the red line in (a). (a) was at the level of the yellow line in (b). Anterior view (c) and posterior view (d) three-dimensional CT scans.
case_images: SNI-14-136-g001.jpg
case_images: PMC10159283_01_SNI-14-136-g001.jpg
case_images: F1
case_images: An old cervical computed tomography (CT) 3 months after the operation had documented the prior surgical procedures without a C1 arch fracture [Figure 1].
case_images: Sagittal-view (a) and axial-view (b) after onset of neck pain showed right C1 anterior arch fracture. (b) was at the level of the red line in the sagittal-view image (a). (a) was at the level of the yellow line in (b). Anterior view (c) three-dimensional computed tomography scan. White arrow indicates right C1 anterior arch fracture. Cervical radiographs indicated instability between C1 and C2 (d: lateral neutral view, (e: extension view, (f: flexion view).
case_images: SNI-14-136-g002.jpg
case_images: PMC10159283_01_SNI-14-136-g002.jpg
case_images: F2
case_images: On this admission, however, he newly showed a right C1 anterior arch fracture on the CT study, while dynamic films confirmed C1-C2 instability [Figure 2].
case_images: Postoperative cervical radiographs (a: anteroposterior view and b: lateral neutral view) showed the adequate placement of the implants with good cervical alignment. Posterior view (c) three-dimensional computed tomography scans.
case_images: SNI-14-136-g003.jpg
case_images: PMC10159283_01_SNI-14-136-g003.jpg
case_images: F3
case_images: Postoperative cervical radiographs showed adequate implant placement/alignment [Figure 3].