Table 3.

Comparison of radiographic features (pre, post, and change) between the compensated (C) and uncompensated (U) groups.

	Preoperative		1 Year		Change at 1 Year
	C	U	C	U	C	U
CPL	33.76*	44.87*	31.57*	46.63*	−2.18	1.76
C2S	9.13*	21.36*	7.58*	27.39*	−1.55*	6.03*
CL	23.02*	12.53*	18.91*	2.64*	−4.10	−9.89
T1S	33.25	34.69	26.91	29.51	−6.34	−5.17
TS-CL	10.23*	22.16*	8.00*	26.87*	−2.23*	4.72*
TK_T2	−36.27	−37.88	−46.80	−46.53	−10.53	−8.66
TK_T4	−33.96	−34.94	−40.82	−38.50	−6.85	−3.56
LL	29.77	32.38	56.02	53.54	26.25	21.16
PT	30.19	30.47	21.68	24.30	−8.51	−6.17
PI-LL	27.30	26.40	1.46	5.44	−25.83	−20.96
SVA	119.90	114.45	29.24	30.34	−90.65	−84.12
CTPA	2.29*	3.38*	2.93*	4.31*	0.65	0.93
CPA	35.01	35.60	20.50	23.97	−14.51	−11.63
TPA	32.73	32.22	17.57	19.66	−15.16	−12.55

Abbreviations: CPL, C2-C7 plumb line; C2S, C2 slope; CL, cervical lordosis; T1S, T1 slope; TS-CL, T1 slope minus CL; TK_T2, T2_T12 kyphosis; TK_T4, T4_T12 kyphosis; LL, lumbar lordosis; PT, pelvic tilt; PI-LL, pelvic incidence minus LL; SVA, sagittal vertical axis; CTPA, cervico-thoracic pelvic angle; CPA, C2 pelvic angle; TPA, T1 pelvic angle.

* Indicates significant difference between values.