Lower C2 slope and milder uncovertebral joint degeneration are risk factors for pseudarthrosis after single-level anterior cervical corpectomy and fusion (ACCF): retrospective study of 102 patients with minimum 2-year follow-up

Table 2 Univariate analysis comparing radiographic parameters between fusion and pseudarthrosis group

	Fusion group (n = 65)	Pseudarthrosis group (n = 37)	P-value
C2-7 SVA	19.56 ± 11.16	17.37 ± 11.91	0.368
Segment SVA	13.99 ± 3.85	14.43 ± 5.04	0.628
C2-7 Cobb	6.31 ± 11.85	11.45 ± 9.72	0.029*
Segment Cobb	1.18 ± 8.89	1.69 ± 7.81	0.783
Segment ROM	12.45 ± 6.68	19.52 ± 6.02	< 0.001*
C2 Tilt	5.78 ± 8.68	− 0.53 ± 9.88	0.001*
C2 Slope	14.62 ± 7.44	7.96 ± 7.45	< 0.001*
C7 Slope	18.25 ± 7.40	16.73 ± 6.76	0.314
Segment slope	15.61 ± 7.99	15.26 ± 7.10	0.942
UVJ degeneration grades	8.81 ± 2.10	7.25 ± 2.05	0.001*
Average CT value of adjacent segments	329.46 ± 86.23	335.19 ± 73.93	0.670

*p<0.05
SVA sagittal vertical axis, ROM range of motion, UVJ uncovertebral joint, CT computed tomography

ISSN: 1749-799X