Figure 3.
(a) Comparison of serum CXCL12 levels between multifidus degeneration and non-degeneration IDD patients. (b) Comparison of serum CXCL12 levels between psoas major degeneration and non-degeneration IDD patients. (c) Correlation between serum CXCL12 levels and multifidus degeneration, based on Goutallier grade. (d) Correlation between serum CXCL12 levels and psoas major degeneration, based on Goutallier grade.