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.

Table 2 Clinical outcomes of the two groups

	CR-PT group (31)	AP-PT group (33)	P value
Number of fluoroscopies	12 (11, 14)	16 (12, 23)	0.002
Puncture duration	20.42 ± 5.78	25.06 ± 5.46	0.002
Surgery duration	115 (107, 124)	123 (92, 148.5)	0.173
VAS score during puncturing	3 (2, 4)	3 (3, 4)	0.021
Puncture success rate (34 participants included for AP-PT group)	100%	97.06%	1

AP-PT: Radiography-guided puncture technique; CR-PT: Coaxial radiography-guided puncture technique.

Table 3 Clinical outcomes of the two groups in the L5/S1 segment

	CR-PT subgroup (9)	AP-PT subgroup (9)	P value
Number of fluoroscopies	11.56 ± 0.88	25.22 ± 5.33	0
Puncture duration	13.89 ± 1.45	28.89 ± 3.76	0
Surgery duration	105 (99.5, 120)	149 (125, 157.5)	0
VAS score during puncturing	2.11 ± 0.93	3.89 ± 0.6	0

AP-PT: Radiography-guided puncture technique; CR-PT: Coaxial radiography-guided puncture technique.