MiR-26a is poorly expressed and EZH2 is highly expressed in SONFH tissues. A, the expression of miR-26a in the SONFH group and the control group; B, the mRNA expression of EZH2 in bone tissues of the SONFH group and the control group; C, protein band of EZH2 in bone tissues of the SONFH group and the control group; D, the statistical results of protein expression of EZH2 in the SONFH group and the control group. & P< 0.05 vs the control group; n = 30 in the control group, n = 52 in the SONFH group, the measurement data conforming to the normal distribution were expressed as mean ± standard deviation and the t-test was performed for comparisons between two groups.