Clinical outcomes of transforaminal endoscopic lateral recess decompression by using the visualized drilled foraminoplasty and visualized reamed foraminoplasty: a comparison study

Table 1 Comparison of demographic characteristics in two groups

Characteristics	VDF group (n = 45)	VRF group (n = 42)	P value
Age (years)	59.18 ± 8.84	57.83 ± 7.54	0.45
Gender: (male) (%)	28 (62.22)	23 (54.76)	0.48
BMI (kg/m²)	25.10 ± 4.11	24.73 ± 4.18	0.68
Diabetes (%)	7 (15.56)	5 (11.90)	0.62
Low extremity atherosclerosis disease (%)	6 (13.33)	7 (16.67)	0.66
Duration of symptoms (months)	12.58 ± 6.12	14.12 ± 7.11	0.28
Operative level: (L4/5)/(L4/5 + L5/S1) (%)	31 (68.89)	26 (61.90)	0.49
With/without herniated disc	22 (48.89)	27 (64.29)	0.15
Bartynski grade: Bartynski grade 3/(Bartynski grade 2+ Bartynski grade 3) (%)	18 (40.00)	14 (33.33)	0.52
Follow-up (months)	23.29 ± 5.36	21.57 ± 5.10	0.13

The Age, BMI, Duration of symptoms, Follow-up were verified by student t-test; The Gender, Diabetes, low extremity atherosclerosis, operative level, combined herniated disc and Bartynski grade were verified by χ² test. P < 0.05 represented significance. VDF visualized drilled foraminoplasty, VRF visualized reamed foraminoplasty

ISSN: 1471-2474