Minimum Seven-Year Follow-Up Outcomes of Percutaneous Endoscopic Lumbar Discectomy for Lumbar Degenerative Disease

Figures & data

Figure 1 A 37-year-old female had severe sciatica for more than one year due to LDH and was treated by PELD using the transforaminal approach. (A–D) Preoperative X-rays and MR images showed protrusion at the L5-S1 segment. (E, F) Photograph during the operation showed the disc material removed and adequate decompression of the nerve root. (G–L) X-ray and MR images 7 years postoperation showed complete decompression and good preservation of the disc height.

Table 1 Patient Demographic Data

Item		Value
Sex	Male	24 (57%)
	Female	18 (43%)
Average age (year)		48.56±6.34
Average follow-up period (months)		95.71±5.63
Preoperative Diagnosis	LDH	37 (88%)
	LSS	5 (12%)
Levels of operation	L3-4	2 (5%)
	L4-5	27 (64%)
	L5-S1	13 (31%)
Classification for LDH	Protrusion	21 (57%)
	Extrusion	13 (35%)
	Sequestration	3 (8%)

Abbreviations: LDH, lumbar disc herniation; LSS, lumbar spinal stenosis.

Table 2 Clinical Outcomes Preoperative, 6 Months Postoperative and at Final Follow-Up

Variable	Preoperation	6 Month Post-Op	Final Follow-Up	F value	p value
VAS-B	4.05±1.25	2.59±0.90	1.55±1.06	F=21.345	<0.001
VAS-L	6.86±1.64	1.85±0.75	1.75±0.75	F=91.733	<0.001
JOA score	11.24±1.66	22.82±5.74	23.62±4.67	F=27.622	<0.001
ODI score	45.25±4.68	18.84±5.26	12.68±3.54	F=83.557	<0.001

Abbreviations: ODI, Oswestry Disability Index; JOA, Japanese Orthopaedic Association; VAS, visual analog scale; VAS-B, visual analog scale for back pain; VAS-L, visual analog scale for leg pain.