Table 3.

Comparison of surgical outcomes between the two groups

	RA Group	FH Group	P value
Operative time (min)	283.1 ± 30.8	291.9 ± 40.0	0.31
Intraoperative blood loss (ml)*	498.7 ± 96.3	573.0 ± 78.1	< 0.001
Length of hospital stay (day)	12.8 ± 4.5	13.7 ± 4.6	0.36
Perioperative complication	1	2	1.000
Revision	0	0	1.000
Radiological parameter
Cobb (°)
Pre-op	48.7 ± 6.4	47.4 ± 5.8	0.31
Post-op	10.6 ± 1.9	10.9 ± 1.9	0.39
Correction rate (%)	77.9 ± 5.3	76.6 ± 5.1	0.24
SVA (mm)
Pre-op	74.3 ± 56.2	79.8 ± 62.5	0.68
Post-op	31.8 ± 20.7	36.3 ± 30.6	0.47
AVT (mm)
Pre-op	35.6 ± 11.4	39.2 ± 13.4	0.21
Post-op	20.2 ± 6.4	20.7 ± 8.2	0.78
PI (°)
Pre-op	51.8 ± 3.9	51.2 ± 4.0	0.50
Post-op	50.8 ± 3.4	51.1 ± 3.7	0.69
LL (°)
Pre-op	22.4 ± 5.4	21.7 ± 6.0	0.62
Post-op	51.8 ± 4.4	50.3 ± 5.0	0.18
Δ	29.4 ± 5.4	28.6 ± 8.3	0.62
Follow-up period (month)	11.1 ± 4.1	11.1 ± 3.4	0.96

SVA sagittal vertical axis, AVT apical vertebral translation, PI pelvic incidence, LL lumbar lordosis, Δ=| post-pre |

*Means RA group showed less intraoperative blood loss compared with FH group