Comparison of percutaneous endoscopic interlaminar discectomy and conventional open lumbar discectomy for L4/5 and L5/S1 double-segmental lumbar disk herniation

Table 2 Clinical comparison between two groups

	PEID	COLD	t or X² value	P value
VAS back
Preoperative	5.36 ± 1.25	5.04 ± 1.27	0.895	0.375
1 day	2.52 ± 1.12*	2.72 ± 0.84*	− 0.712	0.480
3 months	2.04 ± 0.98*	2.32 ± 0.80*	− 1.107	0.274
Final follow-up	0.84 ± 0.55*	1.12 ± 0.60*	− 1.715	0.093
VAS leg
Preoperative	7.68 ± 1.07	7.80 ± 1.26	− 0.363	0.718
1 day	3.28 ± 0.98*	3.12 ± 0.88*	0.607	0.547
3 months	2.24 ± 0.97*	2.32 ± 0.80*	− 0.318	0.752
Final follow-up	0.92 ± 0.40*	1.04 ± 0.61*	− 0.822	0.425
ODI
Preoperative	57.16 ± 11.40	56.40 ± 12.80	0.449	0.655
1 day	24.96 ± 4.13*	26.10 ± 5.77*	− 1.014	0.315
3 months	17.68 ± 4.27*	17.28 ± 4.90*	0.308	0.759
Final follow-up	10.48v3.23*	12.16 ± 3.60*	− 1.736	0.089
MacNab evaluation
Excellence	19	17
Good	4	5
Fair	1	2
Poor	1	1
Excellence/good rate	23/25	22/25	0.200	0.655

ISSN: 1749-799X