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

Figure 3 Spinal compression was mainly caused by disc herniation, and the facet joints were normal. A-C: Range of motion at C5/6 and C6/7 was 11.93° and 11.28°, respectively, and the intervertebral disc height at both levels was slightly decreased; D and E: There was no obvious degeneration of the facet joints; F: Magnetic resonance imaging revealed soft disc herniation at C5/6 and C6/7.