Coaxial radiography guided puncture technique for percutaneous transforaminal endoscopic lumbar discectomy: A randomized control trial

Table 1 Demographic data of patients included in the two groups

	CR-PT group (31)	AP-PT group (34)	P value
Sex (male:female)	19:12	18:16	0.5
Height (cm)	168.29 ± 7.99	167.53 ± 8.18	0.71
Weight (kg)	66 (62, 75)	69 (60, 80)	0.17
BMI (kg/cm2)	25.3 (22.63, 28.04)	27.25 (23.19, 33.35)	0.15
Age	55 (41, 65)	58 (38, 66)	0.5
Surgical segment
L1/L2	0	2	0.57
L2/L3	1	0
L3/L4	1	3
L4/L5	20	19
L5/S1	9	10
Laterality (left:right)	18:13	12:22	0.07
Pain duration (mo)	6 (1, 24)	6 (2, 24)	0.64

Normally distributed data are presented as the mean ± SD; non-normally distributed data are presented as the median (P25, P75). AP-PT: Radiography-guided puncture technique; CR-PT: Coaxial radiography-guided puncture technique.