Fig. 7From: Regenerative effects of platelet-rich plasma releasate injection in rabbit discs degenerated by intradiscal injection of condoliaseHistological grading scores. The histology was graded based on the standardized histopathological scoring system for rabbit IVD degeneration [21]. The repair score (a) is the sum of cell cloning and morphology. The total score (b) is the sum of the degeneration and repair scores. Data are presented as mean ± standard error of the mean (SEM). Non-injection control, n = 11 discs; saline, n = 11 discs; PRPr, n = 11 discs. **P < 0.01Back to article page