Comparison of Transforaminal Percutaneous Endoscopic Lumbar Discectomy with and without Foraminoplasty for Lumbar Disc Herniation: A 2-Year Follow-Up

Table 3

The distribution of surgery levels and sides.

Groups	PELF		PELD
Levels	Sides
	Left	Right	Left	Right
L2-3	1	0	1	0
L3-4	4	1	1	0
L4-5	13	16	23	24
L5-S1	17	8	10	8
L3-4 and L4-5	1	0	2	0
L3-4 and L5-S1	0	0	0	2
L4-5 and L5-S1	1	0	5	2
Total	37	25	42	36