From: The effect of core decompression on local expression of BMP-2, PPAR-γ and bone regeneration in the steroid-induced femoral head osteonecrosis
Time point
Without decompresssion
With decompression
2 weeks
0.326 ± 0.012
0.334 ± 0.032
4 weeks
0.131 ± 0.022
0.142 ± 0.021
8 weeks
0.125 ± 0.014
0.114 ± 0.011