Should adjacent asymptomatic lumbar disc herniation of L5-S1 isthmic spondylolisthesis be simultaneously rectified? Evaluation of postoperative spino-pelvic sagittal balance and functional outcomes

Table 5 Univariate logistic regression analysis for reoperation after surgery

Factor	B-value	Odds Ratio (95% Confidence interval)	P-value
Age	0.014	1.014(0.958–1.074)	0.634
SFI	0.124	1.132(0.953–1.344)	0.159
L4-5 asLDH grade	-2.142	0.117(0.025–0.557)	0.007
Pre-SL	-0.471	0.624(0.463–0.841)	0.002
Pre-LL	-0.234	0.791(0.681–0.920)	0.002
Pre-PI	0.038	1.039(0.954–1.131)	0.378
Pre-PT	0.020	1.020(0.897–1.159)	0.764
Pre-SS	0.054	1.055(0.941–1.184)	0.358
Pre-VAS	-0.032	0.969(0.579–1.621)	0.904
Pre-ODI	0.067	1.069(0.995–1.148)	0.068

SFI Subcutaneous fat index, asLDH Adjacent asymptomatic lumbar disc, SL Segmental lordosis, LL Lumbar lordosis, PT Pelvic tilt, PI Pelvic incidence, SS Sacral slope, VAS Visual analogue scale, ODI Oswestry disability index, Pre preoperative
Blod represents there is statistical significance

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