Superior Facet Joint Violations during Single Level Minimally Invasive Transforaminal Lumbar Interbody Fusion: A Preliminary Retrospective Clinical Study

Table 1

General information of different FV patients in MIS-TLIF.

	Group A (31 patients)	Group B (22 patients)
Age	55.23 ± 12.09	52.23 ± 12.65	0.387
Gender			0.833
Male	15	10
Female	16	12
BMI	27.42 ± 1.83	28.51 ± 3.13	0.150
Top-screw level			0.828
L4	22	15
L5	9	7
Follow-up time	18.26 ± 3.78	18.59 ± 4.24	0.765

BMI: body mass index.