Effective Range of Percutaneous Posterior Full-Endoscopic Paramedian Cervical Disc Herniation Discectomy and Indications for Patient Selection

Table 2

Comparison of functional indicators recorded before percutaneous posterior full-endoscopic cervical discectomy (PFECD) and at last follow-up (mean ± SD).

Indicators	Pre-op	3 days	28 days	90 days	180 days
VAS score	8.10 ± 0.88	3.20 ± 0.42	1.40 ± 0.52	1.20 ± 0.42	1.10 ± 0.24
JOA score	8.90 ± 0.74	13.20 ± 0.42	14.50 ± 0.53	14.80 ± 0.42	15.10 ± 0.62

VAS score: homogeneity test of variance, = 0.01 and < 0.05, single factor analysis of variance using Tamhane test; JOA score: homogeneity test of variance, = 0.22 and > 0.05, single factor analysis of variance using Dunnett test; compared with preoperation, < 0.05; compared with postoperation day 3, < 0.05; compared with postoperation day 28, > 0.05; compared with postoperation day 90, > 0.05.