Research Article
Selective Retention of Bone Marrow Stromal Cells with Gelatin Sponge for Repair of Intervertebral Disc Defects after Microendoscopic Discectomy: A Prospective Controlled Study and 2-Year Follow-Up
Figure 3
VAS (a) and ODI (b) scores at each visit presented an obvious reduction compared with the preoperative level. The asterisk () indicates that the data at this follow-up time point is statistically significant compared with the data at the previous follow-up time points. At the last follow-up compared with the preoperational status, VAS improvement rate (c) showed that the MMED+AFS+BMSCs group had better pain relief than the MMED and MMED+AFS groups (). In ODI improvement (d), the MMED+AFS+BMSCs group’s disability improvement was significantly higher than the other groups (), while the MMED+AFS group showed no significant difference compared with the MMED group (ns; ). ns: nonsignificant.
(a) |
(b) |
(c) |
(d) |