Clinical Outcomes of Posterior Lumbar Interbody Fusion versus Minimally Invasive Transforaminal Lumbar Interbody Fusion in Three-Level Degenerative Lumbar Spinal Stenosis

Table 1

Clinical characteristics of included patients with three-level spinal stenosis.

Variables	PLIF	MIS-TLIF	value
Age	64.4	65.9	0.387
Gender
Male	17	14	0.4
Female	19	10
Lesion segments
L1–4	8	6	0.96
L2–5	16	10
L3-S1	12	8
Fusion + fixation
Single-segmental fusion + three-segmental fixation	13	7	0.75
Two-segmental fusion + three-segmental fixation	9	8
Three-segmental fusion + three-segmental fixation	14	9
Follow-up	13.4	14.2	0.58