Fig. 8From: Transplantation of active nucleus pulposus cells with a keep-charging hydrogel microsphere system to rescue intervertebral disc degenerationRadiological data of animal experiments. A Representative X-ray images of the caudal vertebrae of rats at 4 and 8 weeks (marked by red wireframe). B Representative MRI images of the caudal vertebrae of rats. C Changes in DHI at 4 and 8 weeks postoperatively (compared with the Sham group). D Changes in MRI grading at 4 and 8 weeks postoperatively (compared with the Sham group). *p < 0.05, **p < 0.01, ns no significant differenceBack to article page