How to prevent preoperative adjacent segment degeneration L5/S1 segment occuring postoperative adjacent segment disease? A retrospective study of risk factor analysis

Table 5 VAS and ODI scores

Indicated	ASDis group (n = 17)	asymptomatic group (n = 102)	P value
VAS score for low back pain
Before operation	7.43 ± 0.60	7.57 ± 0.63	0.354
2 days after surgery	5.29 ± 1.01	4.84 ± 0.64	0.066
3 months after surgery	2.05 ± 0.67	2.06 ± 0.64	0.945
Last follow-up	1.33 ± 0.80	1.35 ± 0.97	0.933
ODI Score
Before operation	47.11 ± 5.87	48.28 ± 8.06	0.538
2 days after surgery	34.71 ± 4.11	35.61 ± 4.98	0.456
3 months after surgery	24.29 ± 4.68	24.24 ± 4.15	0.962
Last follow-up	15.95 ± 5.15	16.25 ± 4.85	0.809

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