Efficacy and safety of a modified lateral lumbar interbody fusion in L4-5 lumbar degenerative diseases compared with traditional XLIF and OLIF: a retrospective cohort study of 156 cases

Table 1 Basic information of group XLIF, OLIF and XOLIF

Values	XLIF	OLIF	XOLIF	P (2-tailed)
Age (year)	56.74 ± 12.94	54.82 ± 12.88	53.53 ± 13.78	0.537^$
Sex (male/female)	19/32	25/31	16/33	0.442^&
BMI (kg/m²)	25.22 ± 2.79	24.75 ± 3.29	25.06 ± 2.71	0.707^#
Operation time (min)	84.98 ± 15.05	85.41 ± 14.70	81.96 ± 10.73	0.625^$
Intraoperative blood loss (ml)	63.73 ± 25.75	68.75 ± 35.27	65.10 ± 24.67	0.831^$
Follow-up time (month)	24.08 ± 6.56_a	25.30 ± 6.54_a	18.84 ± 3.28_b	< 0.001^#

XLIF indicated extreme lateral interbody fusion, OLIF oblique lumbar interbody fusion; ^$, Kruskal Wallis test; ^&, Pearson Chi-square test; #, Analysis of variance; Multiple comparisons were used bonferroni method, and at least one identical subscript letter denotes do not differ significantly from each other

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