Table 2 The quantitative analysis of micro-CT for the BMP-2 release profile on rat critical-sized calvarial defect model. Data was presented as mean ± SD. Cage N = 9, Cage+Biogel N = 11, Cage +BMP-2 N = 12, Cage+Biogel+BMP-2 N = 9

3.224 ± 2.503

2.945 ± 1.276

20.886 ± 7.67^a,b

23.414 ± 4.518^a,b

20.145 ± 2.36

19.631 ± 4.044

17.049 ± 2.918

16.73 ± 1.799

0.195 ± 0.022

0.178 ± 0.034

0.194 ± 0.031

0.164 ± 0.012

1.74 ± 0.313

2.025 ± 0.282

0.701 ± 0.336^a,b

0.726 ± 0.168^a,b

0.166 ± 0.129

0.169 ± 0.077

1.104 ± 0.437^a,b

1.434 ± 0.304^a,b

5.023 ± 9.724

−6.693 ± 8.014

5.34 ± 15.973

−17.572 ± 4.28^a,c

2.026 ± 2.021

−0.424 ± 1.697

1.935 ± 3.825

−3.962 ± 1.533^a,b,c

2 ± 0.473

2.275 ± 0.482

1.802 ± 0.207^b

−1.718 ± 0.137^b