Fig. 5

Representative preoperative images of case with pseudarthrosis. Radiographic parameters of the case presented in Fig. 3B. A Preoperative C2S was 6.5°,  B the UVJ degeneration grade was 6 (C4-5 left: Grade 1; C4-5 right: Grade 1; C5-6 left: Grade 2; C5-6 left: Grade 2) and C–D segment ROM was 20.6°