Enhanced Recovery after an Innovative Percutaneous Endoscopic Transforaminal Lumbar Interbody Fusion for the Treatment of Lumbar Spinal Stenosis: A Prospective Observational Study

Table 2

Comparison of indicators related to multifidus injury before and after PE-TLIF.

n = 51	CK(U/L)	Max-CSA (mm^2)	PI (db)
Preoperation	83.79 ± 4.99	520.29 ± 10.27	2.68 ± 0.11
Post-1d	452.62 ± 13.50^①	—	—
Post-7d	91.23 ± 2.71^②	628.20 ± 11.26^①	4.55 ± 0.17^①
Post-1m	—	516.74 ± 7.86^②	2.91 ± 0.06^②
Post-3m	—	482.29 ± 8.61^②	2.53 ± 0.06^②
Final follow-up	—	477.42 ± 8.80^②	2.36 ± 0.08^②

Note: ①Compared with preoperation, ; ②compared with preoperation, .