Fig. 5

Installation according to the severity of vertebral deformity. Yellow arrows indicate vertebrae with significant morphological changes. A A middle-aged female patient with C4/5, C5/6, and C6/7 ACDF had all C4/5, C5/6, and C6/7 fused at the final follow-up. The AH of the superior OVB decreased significantly from 1.60 cm at 1 week postoperatively to 1.41 cm at the final follow-up, and there was significant bone resorption at the anterior edge. B A middle-aged male patient with C4/5, C5/6, and C6/7 ACDF. The AH of the superior OVB decreased significantly from 1.60 cm at 1 week postoperatively to 1.21 cm at the final follow-up; the AH of the inferior OVB decreased significantly from 1.46 cm at 1 week to 1.11 cm at the final follow-up. C A middle-aged female patient with C4/5, C5/6, and C6/7 ACDF had C5/6 and C6/7 fused at the final follow-up. The AH of the inferior OVB decreased significantly from 1.28 cm at 1 week postoperatively to 0.79 cm at the final follow-up