Transforaminal Endoscopic Lumbar Discectomy with versus without Platelet-Rich Plasma Injection for Lumbar Disc Herniation: A Prospective Cohort Study

Table 2

Comparison of clinical outcomes at 3 days, 6 months, and 1 year after operation (mean ± SD).

Characteristics	Control group, n = 57	PRP group, n = 51	value
VAS score
Leg pain at 3 days	1.54 ± 1.60	1.69 ± 1.55	0.641
Back pain at 3 days	1.45 ± 1.10	1.68 ± 1.91	0.446
Leg pain at 3 months	1.70 ± 0.91	1.33 ± 0.80	0.027
Back pain at 3 months	1.35 ± 0.97	0.96 ± 0.63	0.016
Leg pain at 6 months	1.79 ± 0.90	1.39 ± 0.83	0.019
Back pain at 6 months	1.23 ± 0.84	0.86 ± 0.63	0.012
Leg pain at 1 year	1.09 ± 0.93	0.75 ± 0.74	0.038
Back pain at 1 year	1.11 ± 0.82	0.82 ± 0.56	0.041
ODI (%)
3 months	14.10 ± 9.99	10.62 ± 6.53	0.037
6 months	10.80 ± 10.99	6.65 ± 6.51	0.021
1 year	6.17 ± 4.47	4.29 ± 4.51	0.031

SD, standard deviation; VAS, visual analog scale; ODI, Oswestry Disability Index; PRP, platelet-rich plasma, .