Early efficacy observation of the unilateral biportal endoscopic technique in the treatment of multi-level lumbar spinal stenosis

Table 1 Basic data of 26 patients

Basic index	Statistical magnitude
Age (years)	51.22 ± 8.19
Gender (n)
Male	16
Female	10
Body mass index (kg/m²)	24.36 ± 2.46
Operative segment (n)
L2/L3 + L3/L4	4
L3/L4 + L4/L5	8
L4/L5 + L5/S1	12
L3/L4, L4/L5, L5/S1	2
Intraoperative hemorrhage (ml)	156.25 ± 44.32
Operation time (min)	145 ± 40.11
Postoperative hospital stay (Days)	4.79 ± 1.31
Complication (n)	2

ISSN: 1749-799X