Oblique Lateral Interbody Fusion versus Transforaminal Lumbar Interbody Fusion in Degenerative Lumbar Spondylolisthesis: A Single-Center Retrospective Comparative Study

Table 1

Comparison of preoperative clinical features between the two groups.

Clinical features	TLIF group ()	OLIF group ()	value
Age (year),			0.641
Gender (), Male/Female	23/14	16/12	0.683
BMI (kg/m^2),			0.591
ASA grade ()			0.779
I	24	17
II	10	9
III	3	2
Operation level ()			0.890
L3/4	10	8
L4/5	27	21
BMD ( score),			0.101
Follow-up time (month),			0.282