Surgical strategy used in multilevel cervical disc replacement and cervical hybrid surgery: Four case reports

Figure 1 Computed tomography images of case 1. A-C: Lateral radiographs showing a straightened cervical alignment that returned during flexion-extension movement. The range of motion at C4/5, C5/6, and C6/7 was 11.3°, 14.53°, and 1.28°, respectively; D: Computed tomography image showing large numbers of osteophytes at the posterior border of C5/6 and C6/7; E: Magnetic resonance imaging revealed cervical disc herniation at C4/5 and C6/7.