Structural Preservation Percutaneous Endoscopic Lumbar Interlaminar Discectomy for L5-S1 Herniated Nucleus Pulposus

Table 1

Demographic features of the 80 patients who underwent PEID with ligamentum flavum splitting and annular sealing.

Characteristics	Number of patients ()	%
Sex
Male	51	64
Female	29	36
Age, years
<30	16	20
31–40	27	34
41–50	21	25
51–60	12	15
61–70	2	3
>71	2	3